SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549
                                                     

                            FORM 8-K 


                         CURRENT REPORT 


              Pursuant to Section 13 or 15(d) of the
                 Securities Exchange Act of 1934 


Date of Report  (Date of earliest event reported)   November 19, 1996

                     Berry Petroleum Company                     
     (Exact name of registrant as specified in its charter) 


  Delaware                    1-9735                   77-0079387
(State or other            (Commission               IRS Employer
jurisdiction of            File Number)        Identification No.
incorporation)


      28700 Hovey Hills Road,   P.O. Bin X,  Taft, CA 93268      
             (Address of principal executive offices)


Registrant's telephone number, including area code    (805) 769-8811


                               N/A                               
  (Former name or former address, if changed since last report) 






2 Item 2. Acquisition or Disposition of Assets. On November 19, 1996, Berry Petroleum Company, a Delaware corporation (the "Company"), purchased certain assets from, Tannehill Oil Company, Inc., a California corporation, Tannehill Electric Company, Inc., a California corporation, Tannehill Oil Company, a general partnership (the "Partnership"), and the general partners of the Partnership, and acquired/paid off the related ownership/security interest of Security Pacific Leasing Corporation for the aggregate consideration of $25.5 million, payable $18.6 million in cash and $6.9 million in unsecured promissory notes. In addition, the Partnership received a Warrant to purchase 100,000 shares of the Class A Common Stock of the Company. The cash consideration was paid from existing working capital of the Company. The assets purchased include oil producing properties, power cogeneration assets, and equipment, machinery, fixtures and other assets associated with heavy oil production activities. The primary Tannehill oil producing properties, which are fee properties, are located between two of the Company's producing South Midway-Sunset field properties. These Tannehill properties currently produce approximately 1,300 barrels per day ("BPD") of heavy (13 Degree API) crude oil from 169 wells and have estimated reserves of over seven (7) million barrels. The 18 megawatt cogeneration facility supplies approximately 5,500 BPD of steam to the oil producing properties. Item 7. Financial Statements and Exhibits. (a). Financial Statements. It is impracticable to provide the required financial statements and pro forma financial information at this time and such financial statements and pro forma financial information will be filed as soon as they are available, but in no event later than 60 days after the date this Form 8-K is required to be filed. (b). Pro Forma Financial Information. See Item 7(a) above. (c). Exhibits. 10.1 Purchase and Sale Agreement, dated as of November 8, 1996, by and between the Registrant and Tannehill Oil Company, Inc., a California corporation. 10.2 Purchase and Sale Agreement, dated as of November 8, 1996, by and between the Registrant and Tannehill Electric Company, Inc., a California corporation. 10.3 Purchase and Sale Agreement, dated as of November 8, 1996, by and between the Registrant and Tannehill Oil Company, a California general partnership, and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert Gallatin Boyce V; Mary Katharine Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation;

3 Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, all acting as partners of Tannehill Oil Company and individually, jointly and severally. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Date: December 2, 1996 BERRY PETROLEUM COMPANY, a Delaware corporation By: /s/ Jerry V. Hoffman Jerry V. Hoffman, President and Chief Executive Officer





                   PURCHASE AND SALE AGREEMENT

                          By and Between

                   Berry Petroleum Company and

                   Tannehill Oil Company, Inc.



                      Dated November 8, 1996


i TABLE OF CONTENTS Page ARTICLE I DEFINITIONS. . . . . . . . . . . . . . . . . . . . . 1 1.1 "Affiliate". . . . . . . . . . . . . . . . . . . . . 1 1.2 "Agreement". . . . . . . . . . . . . . . . . . . . . 2 1.3 "Assets" . . . . . . . . . . . . . . . . . . . . . . 2 1.4 "Business Day" . . . . . . . . . . . . . . . . . . . 2 1.5 "Closing". . . . . . . . . . . . . . . . . . . . . . 2 1.6 "Code" . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 "Default". . . . . . . . . . . . . . . . . . . . . . 2 1.8 "Effective Date" . . . . . . . . . . . . . . . . . . 2 1.9 "Encumbrance". . . . . . . . . . . . . . . . . . . . 2 1.10 "Environmental Laws" . . . . . . . . . . . . . . . . 2 1.11 "Escrow" . . . . . . . . . . . . . . . . . . . . . . 3 1.12 "Financial Statements" . . . . . . . . . . . . . . . 3 1.13 "Governmental Entity". . . . . . . . . . . . . . . . 3 1.14 "Indemnifying Party" . . . . . . . . . . . . . . . . 3 1.15 "Indemnitee" . . . . . . . . . . . . . . . . . . . . 3 1.16 "IRS". . . . . . . . . . . . . . . . . . . . . . . . 3 1.17 "Material" . . . . . . . . . . . . . . . . . . . . . 3 1.18 "Mineral Interest" . . . . . . . . . . . . . . . . . 3 1.19 "Partnership Purchase Agreement" . . . . . . . . . . 4 1.20 "Permitted Encumbrances" . . . . . . . . . . . . . . 4 1.21 "Person" . . . . . . . . . . . . . . . . . . . . . . 4 1.22 "Requisite Regulatory Approvals" . . . . . . . . . . 4 1.23 "Shareholders" . . . . . . . . . . . . . . . . . . . 4 1.24 "TEC Purchase Agreement" . . . . . . . . . . . . . . 4 ARTICLE II THE PURCHASE AND SALE . . . . . . . . . . . . . 4 2.1 Transfer to Berry. . . . . . . . . . . . . . . . . . 4 2.2 Purchase by Berry. . . . . . . . . . . . . . . . . . 4 2.3 Payment of the Purchase Price. . . . . . . . . . . . 4 2.4 Operating Adjustment.. . . . . . . . . . . . . . . . 5 2.5 Assets to be Conveyed to Berry.. . . . . . . . . . . 5 2.6 Allocation of Purchase Price . . . . . . . . . . . . 6 2.7 Closing. . . . . . . . . . . . . . . . . . . . . . . 6 2.8 Proration of Credits and Payment Obligations.. . . . 6 2.9 Real Estate and Other Taxes. . . . . . . . . . . . . 6 2.10 Documentation of Sale and Transfer of Ownership. . . 6 2.11 Approval of Title and Condition of the Section 32 Property . . . . . . . . . . . . . . . . . . . . . 7 2.12 Closing Procedure. . . . . . . . . . . . . . . . . . 7 2.13 Post Closing Access to Documents.. . . . . . . . . . 8 2.14 Escrow . . . . . . . . . . . . . . . . . . . . . . . 9

ii ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL . . 9 3.1 Corporate Organization . . . . . . . . . . . . . . . 9 3.2 Effect of Agreement; Consents. . . . . . . . . . . . 9 3.3 Financial Statements . . . . . . . . . . . . . . . . 10 3.4 Taxes and Tax Returns. . . . . . . . . . . . . . . . 10 3.5 Absence of Adverse Change. . . . . . . . . . . . . . 10 3.6 No Misleading Statements . . . . . . . . . . . . . . 10 3.7 No Significant Transactions. . . . . . . . . . . . . 10 3.8 Properties, Title and Related Matters. . . . . . . . 11 3.9 Legal Proceedings. . . . . . . . . . . . . . . . . . 12 3.10 Records. . . . . . . . . . . . . . . . . . . . . . . 12 3.11 Contracts. . . . . . . . . . . . . . . . . . . . . . 12 3.12 Brokerage. . . . . . . . . . . . . . . . . . . . . . 12 3.13 Execution and Delivery . . . . . . . . . . . . . . . 13 3.14 Environmental Matters. . . . . . . . . . . . . . . . 13 3.15 Employees. . . . . . . . . . . . . . . . . . . . . . 14 3.16 Investigation. . . . . . . . . . . . . . . . . . . . 15 3.17 Operating Agreements . . . . . . . . . . . . . . . . 15 ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY . . . . 15 4.1 Corporate Organization . . . . . . . . . . . . . . . 15 4.2 Due Authorization, Execution and Delivery; Effect of Agreement. . . . . . . . . . . . . . . . 15 4.3 Consents . . . . . . . . . . . . . . . . . . . . . . 16 4.4 Litigation . . . . . . . . . . . . . . . . . . . . . 16 4.5 Brokerage. . . . . . . . . . . . . . . . . . . . . . 16 4.6 Approvals. . . . . . . . . . . . . . . . . . . . . . 16 ARTICLE V COVENANTS OF TANNEHILL . . . . . . . . . . . . . . . 16 5.1 Access to Tannehill. . . . . . . . . . . . . . . . . 16 5.2 Governmental Approvals; Consents . . . . . . . . . . 17 5.3 Litigation and Claims. . . . . . . . . . . . . . . . 17 5.4 Notice of Changes. . . . . . . . . . . . . . . . . . 17 5.5 Conduct of Business Operations . . . . . . . . . . . 18 5.6 Maintain Assets and Operations . . . . . . . . . . . 18 5.7 Exclusive Dealing. . . . . . . . . . . . . . . . . . 19 5.8 Termination Fee. . . . . . . . . . . . . . . . . . . 19 5.9 Taxes. . . . . . . . . . . . . . . . . . . . . . . . 20

iii ARTICLE VI COVENANTS OF BERRY. . . . . . . . . . . . . . . 20 6.1 Cooperation. . . . . . . . . . . . . . . . . . . . . 20 6.2 Governmental Approvals . . . . . . . . . . . . . . . 20 6.3 Disclosure Responsibilities. . . . . . . . . . . . . 20 ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY. . . . . . . 21 7.1 Accuracy of Representations and Warranties . . . . . 21 7.2 Performance of Covenants and Agreements. . . . . . . 21 7.3 Consents . . . . . . . . . . . . . . . . . . . . . . 21 7.4 Governmental Approvals . . . . . . . . . . . . . . . 21 7.5 Approval of Counsel. . . . . . . . . . . . . . . . . 21 7.6 Officers' Certificate. . . . . . . . . . . . . . . . 21 7.7 Resolutions. . . . . . . . . . . . . . . . . . . . . 21 7.8 Opinion of Counsel . . . . . . . . . . . . . . . . . 21 7.9 Closing of Agreements. . . . . . . . . . . . . . . . 22 7.10 Condition of Section 32 Property . . . . . . . . . . 22 7.11 Good Standing Certificate. . . . . . . . . . . . . . 23 ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL. . . . . 24 8.1 Accuracy of Representations and Warranties . . . . . 24 8.2 Performance of Covenants and Agreements. . . . . . . 24 8.3 Resolutions. . . . . . . . . . . . . . . . . . . . . 24 8.4 Approval of Counsel. . . . . . . . . . . . . . . . . 24 8.5 Governmental Approvals . . . . . . . . . . . . . . . 24 8.6 Officers' Certificate. . . . . . . . . . . . . . . . 24 8.7 Opinion of Counsel . . . . . . . . . . . . . . . . . 24 8.8 Closing of Agreements. . . . . . . . . . . . . . . . 24 ARTICLE IX TERMINATION PRIOR TO CLOSING. . . . . . . . . . 25 9.1 Termination. . . . . . . . . . . . . . . . . . . . . 25 9.2 Effect on Obligations. . . . . . . . . . . . . . . . 25 ARTICLE X INDEMNIFICATION. . . . . . . . . . . . . . . . . . . 25 10.1 Indemnification by Berry . . . . . . . . . . . . . . 25 10.2 Indemnification by Tannehill and the Shareholders. . 25 10.3 Survival . . . . . . . . . . . . . . . . . . . . . . 26 10.4 Notice and Opportunity to Defend . . . . . . . . . . 26 10.5 General. . . . . . . . . . . . . . . . . . . . . . . 27

iv ARTICLE XI MISCELLANEOUS . . . . . . . . . . . . . . . . . 27 11.1 Entire Agreement . . . . . . . . . . . . . . . . . . 27 11.2 Successors and Assigns . . . . . . . . . . . . . . . 28 11.3 Expenses . . . . . . . . . . . . . . . . . . . . . . 28 11.4 Taking of Necessary Action . . . . . . . . . . . . . 28 11.5 Invalidity . . . . . . . . . . . . . . . . . . . . . 28 11.6 Attorneys' Fees. . . . . . . . . . . . . . . . . . . 28 11.7 Counterparts . . . . . . . . . . . . . . . . . . . . 29 11.8 Headings . . . . . . . . . . . . . . . . . . . . . . 29 11.9 Construction and References. . . . . . . . . . . . . 29 11.10 Modification and Waiver . . . . . . . . . . . . 29 11.11 Notices . . . . . . . . . . . . . . . . . . . . 29 11.12 Public Announcements. . . . . . . . . . . . . . 31 11.13 Governing Law; Interpretation . . . . . . . . . 31 11.14 Jurisdiction. . . . . . . . . . . . . . . . . . 32

v LIST OF EXHIBITS Exhibit Number Grant Deed . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Bill of Sale . . . . . . . . . . . . . . . . . . . . . . . . . 2 Assignment of Leases, Rights of Way, Easements, and Contracts (Unrecorded Documents). . . . . . . . . . . 3 Assignment of Leases, Rights of Way, Easements, and Contracts (Recorded Documents). . . . . . . . . . . . 4 Allocation of Purchase Price . . . . . . . . . . . . . . . . . 5 Certificate of Satisfaction. . . . . . . . . . . . . . . . . . 6 Escrow Instructions. . . . . . . . . . . . . . . . . . . . . . 7 Certificate of Compliance of Tannehill . . . . . . . . . . . . 8 Opinion of Counsel to Tannehill. . . . . . . . . . . . . . . . 9 Certificate of Compliance of Berry . . . . . . . . . . . . . . 10 Opinion of Counsel to Berry. . . . . . . . . . . . . . . . . . 11

1 PURCHASE AND SALE AGREEMENT THIS PURCHASE AND SALE AGREEMENT ("Agreement") is dated, for the convenience of the parties hereto, November 8, 1996, by and between Berry Petroleum Company, a Delaware corporation ("Berry"), and Tannehill Oil Company, Inc., a California corporation ("Tannehill"). RECITALS: A. Berry and Tannehill have determined that it is in their respective best interests for Berry to purchase substantially all of the assets owned by Tannehill, upon the terms and subject to the conditions set forth herein; B. In furtherance thereof, it is proposed that Berry shall purchase from Tannehill for Nine Hundred Thirty Thousand Dollars ($930,000) cash substantially all of the assets of Tannehill in fee, and with clear title, free of debt, subject to the reservation by Tannehill of a royalty interest of four percent (4%) of all gas, oil and other hydrocarbon substances produced from all zones lying below 4,500 feet below the surface of the Tannehill real property purchased under the terms of this Agreement; and C. Berry and Tannehill have entered into an Agreement in Principle and Exclusive Dealing Agreement dated August 15, 1996 ("AIP"), and wish to set forth the representations, warranties, agreements and conditions under which the purchase and sale will occur in this Definitive Agreement, as defined in Section 6 of the AIP, which upon execution will supersede the AIP. NOW, THEREFORE, in consideration of the premises, representations, warranties and agreements herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Berry and Tannehill and its Shareholders hereby agree as follows: ARTICLE I DEFINITIONS Capitalized terms used in this Agreement shall have the meanings given to them in this Article I, unless defined elsewhere in this Agreement. 1.1 "Affiliate" shall mean with respect to any Person, an individual or entity that, directly or indirectly, controls, is controlled by or is under common control with such Person.

2 1.2 "Agreement" shall have the meaning such term is given in the introductory paragraph hereof. 1.3 "Assets" shall mean substantially all the tangible and intangible, real, personal and mixed assets and properties of Tannehill, including but not limited to the real property described in the Grant Deed attached hereto as Exhibit 1 and made a part hereof ("Section 32 Property"), excluding only cash, receivables and certain prepaid items, as described in Section 2.5 hereof. "Asset" shall mean any such asset or property of Tannehill. 1.4 "Business Day" shall mean any day other than Saturday, Sunday or other days on which federally chartered commercial banks in California are authorized by law to close. 1.5 "Closing" shall have the meaning such term is given in Section 2.7 hereof. 1.6 "Code" shall mean the Internal Revenue Code of 1986, as amended. 1.7 "Default" shall mean, as to any party to this Agreement, (a) a default by such party in the performance of any of its material obligations hereunder and the continuation of such default for a period of five (5) Business Days after written notice is delivered by the non-defaulting party to the defaulting party that a default has occurred or (b) the breach of any representation or warranty hereunder. 1.8 "Effective Date" shall have the meaning such term is given in paragraph 2.4a hereof. 1.9 "Encumbrance" shall mean any security interest, mortgage, pledge, claim, lien, charge, option, defect, encumbrance, or other right or interest of any nature. 1.10 "Environmental Laws" shall be broadly construed to mean any and all federal, state or local laws, statutes, ordinances, rules, regulations, orders, or determinations of any Governmental Entity pertaining to the environment heretofore or currently in effect in any and all jurisdictions in which Tannehill is conducting or at any time has conducted business, or where any of the Assets are located, or where any hazardous substances generated by or disposed of by Tannehill are located. "Environmental Laws" shall include, but shall not be limited to, the federal Clean Air Act, as amended; the federal Comprehensive Environmental, Response, Compensation, and Liability Act of 1980 ("CERCLA"), as amended; the federal Water Pollution Control Act, as amended; the federal Resource Conservation and Recovery Act of 1976, as amended ("RCRA"); the federal Safe Drinking Water Act, as amended; the federal Toxic Substances Control Act, as amended; the federal Superfund Amendments and Reauthorization Act of 1986, as amended; the federal Clean Water Act, as amended; or any state laws or regulations similar or analogous to or in implementation of these provisions; the California State Business Plan Law, California Health and Safety Code Section 25500 et seq.; the Hazardous Substance Account Act, Health and Safety Code Section 25300 et seq.; the Hazardous Waste Control Law, Health and Safety Code Section 25100 et seq.; Chapter 6.7 of Division 20 of the Health and Safety Code, Section 25280 et seq.; the Safe Drinking Water and

3 Toxic Enforcement Act of 1986 ("Proposition 65"); Health and Safety Code Section 25249.5 et seq.; Division 26 of the Health and Safety Code, Section 39000 et seq.; the Porter-Cologne Act, Water Code Section 13000 et seq.; and any other successor or amendments thereto, or implementing regulations thereof; and all other laws, statutes, ordinances, rules, regulations, orders and determinations of any Governmental Entity relating to (a) the control of any potential pollutant or protection of the air, water or land; (b) solid, gaseous or liquid waste generation, handling, treatment, storage, disposal or transportation; and (c) exposure to hazardous, toxic or other substances alleged to be harmful. The terms "hazardous substance," "release" and "threatened release" have the meanings specified in CERCLA, and the terms "solid waste" and "disposal" (or "disposed") have the meanings specified in RCRA; provided, however, that, to the extent the laws of the state in which any Assets are or were located currently or subsequently provide for a meaning for "hazardous substance," "release," "solid waste" or "disposal" which is broader than that specified in either CERCLA or RCRA, such broader meaning shall apply. 1.11 "Escrow" shall mean the escrow account established by Berry and Tannehill with First American Title Insurance Company pursuant to Section 2.14 hereof. 1.12 "Financial Statements" shall have the meaning such term is given in Section 3.3 hereof. 1.13 "Governmental Entity" shall mean the United States of America, any state, county, city, municipality and any subdivision thereof, any court, administrative or regulatory agency, commission, department or body or other governmental authority or instrumentality or any entity or Person exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 1.14 "Indemnifying Party" shall have the meaning such term is given in paragraph 10.4a hereof. 1.15 "Indemnitee" shall have the meaning such term is given in paragraph 10.4a hereof. 1.16 "IRS" shall mean the Internal Revenue Service. 1.17 "Material" means any condition, change or effect that, individually or when taken together with all other such conditions, changes or effects that existed or occurred prior to the date of determination of the existence or occurrence of the material condition, change or effect, is or is reasonably likely to be materially adverse to the business, assets (including intangible assets), financial condition or results of operations of Berry or Tannehill respectively, in each case taken as a whole. 1.18 "Mineral Interest" shall mean the right to extract oil, gas and other hydrocarbons, unrestricted as to depth and with unlimited surface access for such purpose.

4 1.19 "Partnership Purchase Agreement" shall have the meaning such term is given in paragraph 2.12c hereof. 1.20 "Permitted Encumbrances" shall mean encumbrances which Berry accepts, in writing, including, but not limited to, encumbrances revealed on the preliminary title report approved by Berry as provided in this Agreement. 1.21 "Person" shall mean any individual, corporation, association, partnership, joint venture, trust, estate, unincorporated organization or Governmental Entity. 1.22 "Requisite Regulatory Approvals" shall have the meaning such term is given in paragraph 5.2a hereof. 1.23 "Shareholders" shall mean the shareholders of Tannehill. 1.24 "TEC Purchase Agreement" shall have the meaning such term is given in paragraph 2.12c hereof. ARTICLE II THE PURCHASE AND SALE 2.1 Transfer to Berry. In accordance with the provisions of this Agreement, Tannehill shall transfer and convey the Assets to Berry free and clear of all liens and encumbrances (other than Permitted Encumbrances) pursuant to a Grant Deed, Bill of Sale, Assignment of Leases, Rights of Way, Easements and Contracts (Unrecorded Documents), and Assignment of Leases, Rights of Way, Easements and Contracts (Recorded Documents) in the forms of Exhibits 1, 2, 3 and 4, respectively, attached hereto and made a part hereof (collectively, the "Instruments of Transfer") to be delivered at the Closing in accordance with the provisions relating to the Closing, and Berry will acquire such Assets from Tannehill. 2.2 Purchase by Berry. Berry, in reliance upon the covenants, representations, warranties and indemnities of Tannehill contained herein, hereby agrees to purchase the Assets from Tannehill for the purchase price (the "Purchase Price") stated in Section 2.3 hereof. 2.3 Payment of the Purchase Price. As payment for the transfer and conveyance of the Assets by Tannehill to Berry, Berry shall deliver to Escrow for the benefit of Tannehill or its nominees at the Closing, in accordance with the provisions related to the Closing, a wire transfer with immediately available funds in the amount of Nine Hundred Thirty Thousand Dollars ($930,000) to an account specified by the Escrow Agent (as herein defined) prior to the Closing. The transaction shall be subject to a post-closing operating adjustment as provided in Section 2.4 hereof ("Operating Adjustment"). The Operating Adjustment shall not be handled through Escrow.

5 2.4 Operating Adjustment. a. October 1, 1996, at 12:01 a.m. shall be considered the "Effective Date" of this Agreement, and the oil and gas operations included in the Assets shall be deemed to be for the account of Berry from and after that date. The Operating Adjustment will occur after the Closing in an amount equal to the difference between (i) the value of oil and gas produced by Tannehill after the Effective Date and (ii) the normal cost of producing oil and gas after the Effective Date, as determined by Tannehill's customary accounting method adjusted to reflect only necessary operating revenues and expenses which would have been credited to or incurred by Berry had this transaction closed on the Effective Date. The oil tanks shall be gauged at 12:01 a.m. on the Effective Date. The value of oil and gas produced by Tannehill after the Effective Date shall be the net sales after royalties adjusted for the change in inventory between the Effective Date and the Closing. If the value of the oil and gas produced after the Effective Date is greater than said cost, then Tannehill shall pay Berry an Operating Adjustment equal to the amount of the difference. If the value of the oil and gas produced after the Effective Date is less than said cost, then Berry shall pay Tannehill an Operating Adjustment equal to the amount of the difference. b. In the event Tannehill does not provide Berry with its calculation of the Operating Adjustment (the "Calculation") prior to the Closing, Tannehill shall provide Berry with the Calculation within sixty (60) days after the Closing. Berry shall have immediate access at reasonable times to such books, records and invoices of Tannehill as it deems necessary to verify the Calculation. If Berry does not object to the Calculation within ten (10) days after receipt thereof by Berry, it shall be deemed to be final and binding upon the parties hereto. If Berry objects to the Calculation within such ten (10) days by specifying the items to which it objects, then the parties will attempt to mutually resolve any differences. If the differences cannot be resolved within twenty (20) days after Berry's objection to the Calculation, then all amounts agreed to shall be paid as provided below and the difference shall be resolved by arbitration under the Commercial Arbitration rules of the American Arbitration Association. The costs of arbitration shall be shared equally by the parties. This Section 2.4 is the only Section or part of this Agreement which is subject to arbitration jurisdiction. c. Within three (3) days of the final determination of the Calculation, the party required to make the Operating Adjustment payment shall pay, via wire if requested, the Operating Adjustment payment agreed upon to the other party. d. For managing Tannehill subsequent to September 30, 1996, Tannehill shall only be entitled to be credited for management fees at the rate of Ten Dollars ($10) per day and shall not be entitled to reimbursement of overhead costs for legal expenses, accounting costs, loan fees and interest, contributions, dues and assessments, 401K retirement costs or excessive travel or entertainment costs or expenses. 2.5 Assets to be Conveyed to Berry. The Assets to be conveyed to Berry by Tannehill are the following assets owned and/or operated by Tannehill: (a) all of the Section 32 Property, all oil and gas leases, and interests, easements and rights of way included in the

6 operations of Tannehill, including one hundred percent (100%) of the Mineral Interests in the Section 32 Property (except a royalty interest of four percent (4%)), all as more particularly described in the Instruments of Transfer ("the Real Property"); (b) all of the buildings, structures, tanks and pipelines on or under the property owned and/or operated by Tannehill, as are described in the Disclosure Letter from Tannehill delivered to Berry at or prior to execution hereof, which shall refer to the Sections of this Agreement (the "Tannehill Disclosure Letter"); and (c) all equipment and supplies related to or utilized in operating the oil properties and facilities owned and/or operated by Tannehill as described in the Tannehill Disclosure Letter. Any asset of Tannehill not described in the Instruments of Transfer or the Tannehill Disclosure Letter shall be conveyed to Berry subject to Berry's right, in its sole discretion, to refuse to accept such asset by written notice to Tannehill within thirty (30) days after Berry receives written notice from Tannehill that the asset is included in the Assets. 2.6 Allocation of Purchase Price. The parties agree to allocate the Purchase Price for the Assets acquired in accordance with the terms of Code Section 1060 and the Treasury Regulations promulgated thereunder, and to report this transaction for federal and state tax purposes in accordance with the agreed-upon allocation in the form of Exhibit 5 attached hereto and made a part hereof. 2.7 Closing. Subject to the provisions of Articles VII and VIII, the closing (the "Closing") shall take place at 10 a.m., Pacific Standard Time, at the offices of Berry Petroleum Company, 28700 Hovey Hills Road, Taft, California, on such date prior to December 1, 1996, as to which Berry and Tannehill shall mutually agree. By written notice to the other party, either Berry or Tannehill shall have the right to extend the Closing an additional forty-five (45) days in the event that either party is not in a position to close by December 1, 1996. 2.8 Proration of Credits and Payment Obligations. All credits and payment obligations associated with the Assets, including but not limited to royalties, lease rentals and other forms of contractual payments, shall be prorated between Tannehill and Berry as of the Effective Date. Tannehill shall be responsible and shall pay for all such items due, incurred or attributable to the period prior to the Effective Date and Berry shall be responsible and shall pay for all such items due, incurred or attributable to the period after such date. 2.9 Real Estate and Other Taxes. All real estate, occupation, ad valorem, personal property and severance taxes and charges on any of the Assets shall be prorated as of the Effective Date. Tannehill shall pay all such items for all periods prior to such date, however, Berry shall be entitled to all refunds and rebates with regard to such periods. In the event Berry pays additional taxes or charges which are assessed upon or levied against any of the Assets after the Closing with respect to any period prior to the Effective Date, Tannehill shall promptly reimburse Berry the amount thereof upon presentation of a receipt therefor. If Tannehill elects to challenge the validity of such bill or any portion thereof, Berry shall extend reasonable cooperation to Tannehill in such efforts, at no expense to Berry. 2.10 Documentation of Sale and Transfer of Ownership. Except as otherwise provided herein, the Assets to be conveyed by Tannehill to Berry shall be conveyed pursuant

7 to the Instruments of Transfer in such form or forms customary and necessary to properly transfer the Assets according to the requirements of any applicable federal, state or local agency. a. Tannehill shall deliver the Assets to Berry at the Closing subject to the reservations, limitations, conditions and restrictions contained in this Agreement and the Instruments of Transfer. b. Tannehill shall make available at Tannehill's offices or such other place as deemed appropriate by Berry until the Closing, during normal business hours, for examination by Berry, such title information and abstracts as may then be available in Tannehill's files. 2.11 Approval of Title and Condition of the Section 32 Property. Tannehill has provided a preliminary title report on the Section 32 Property to Berry. Berry shall accept or reject title and condition of the Section 32 Property, as provided in Section 7.10 hereof. 2.12 Closing Procedure. At the Closing through Escrow, the transactions listed below shall occur, all subject to and conditioned upon the execution and delivery of a Certificate of Satisfaction described in paragraph 2.12e hereof. a. Tannehill shall deliver to Berry originals (unless otherwise noted) of each of the following documents: (1) Certified resolutions of the Board of Directors of Tannehill authorizing the execution and delivery of this Agreement and the transactions contemplated hereby. (2) Good standing certificates for Tannehill from the Secretary of State and Franchise Tax Board issued by appropriate state officials for the State of California, certifying to the status as of a date as close as practical to the Closing. (3) Executed Instruments of Transfer. (4) All leases, contracts, agreements, indentures and other instruments described in or attached to the Tannehill Disclosure Letter. (5) Executed Certificate of Compliance of Tannehill. (6) Executed Opinion of Counsel to Tannehill. (7) A CLTA Policy of Title Insurance on the Section 32 Property if Berry elects not to obtain an ALTA Policy. (8) Tannehill Disclosure Letter.

8 b. Berry shall deliver to Tannehill originals (unless otherwise noted) of each of the following documents: (1) Certified resolutions of the Board of Directors of Berry authorizing the execution and delivery of this Agreement and the transactions contemplated hereby. (2) Executed Certificate of Compliance of Berry. (3) Executed Opinion of Counsel to Berry. (4) Berry Disclosure Letter. c. Berry and Tannehill will execute and mutually deliver two (2) originals of a statement that the Purchase and Sale Agreement between Berry and Tannehill Oil Company, a general partnership, et al., dated November 8, 1996 (the "Partnership Purchase Agreement") and the Purchase and Sale Agreement between Berry and Tannehill Electric Company, Inc., a California corporation, dated November 8, 1996 (the "TEC Purchase Agreement") are in a condition to close. d. Berry will deliver to Tannehill the Purchase Price as provided in Section 2.3 hereof. e. Berry and Tannehill will execute and mutually deliver two (2) originals of the Certificate of Satisfaction in the form of Exhibit 6 attached hereto and made a part hereof. 2.13 Post Closing Access to Documents. Tannehill has assigned its interest in litigation with Baker Performance Chemicals, Inc. (the "Baker Litigation"), involving the alleged use of ineffective, diluted or blended chemicals in the treatment of oil and water on the Tannehill property, to Tannehill Oil Company, a general partnership, but Tannehill remains obligated to provide Tannehill Oil Company, a general partnership, with documents necessary to support the litigation. Berry shall afford to Tannehill and to the employees, agents and authorized representatives of Tannehill such reasonable access to the files, agreements, documents and books and records of Tannehill for periods prior to the Closing as may be requested by Tannehill in order that Tannehill may have full opportunity to obtain information reasonably necessary in connection with the Baker Litigation. Tannehill hereby releases Berry from all liability arising out of the entry by Tannehill or its employees, agents or authorized representatives onto the business premises of Berry for purposes of obtaining such information. Tannehill hereby agrees to indemnify, defend and hold Berry harmless against all liability, demands, claims, costs, losses, damages, recoveries, settlements and expenses incurred by Berry arising from or related to the conduct by Tannehill or its employees, agents and authorized representatives in connection with obtaining such information. Tannehill will cooperate with Berry and its agents on any post-closing audit or financial review that is required of Berry due to the transactions contemplated by this Agreement.

9 2.14 Escrow. First American Title Insurance Company, a California corporation, whose address is 4540 California Avenue, Suite 100, P.O. Box 1945, Bakersfield, California 93309, is hereby appointed to act as escrow agent ("Escrow Agent") to conduct the purchase and sale of the Assets. Berry and Tannehill shall execute instructions to the Escrow Agent, substantially in the form of Exhibit 7 attached hereto and made a part hereof, to provide for the payment of liabilities secured by the Assets and the release of Encumbrances, other than Permitted Encumbrances, against the Assets. Berry and Tannehill further agree that Tannehill shall be responsible for and pay for all Escrow fees and charges. ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL Except as set forth in the Tannehill Disclosure Letter, Tannehill hereby represents and warrants to and covenants with Berry as follows: 3.1 Corporate Organization. Tannehill is a corporation duly organized, validly existing and in good standing under the laws of the State of California and has full power and authority to conduct its business as currently conducted and to own, operate and lease the Assets it now owns, operates or holds under lease. 3.2 Effect of Agreement; Consents. a. The execution, delivery and performance of this Agreement by Tannehill and the consummation by Tannehill of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or authorization of any Person; (ii) do not violate any provision of the Articles of Incorporation or Bylaws of Tannehill; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other Governmental Entity to which Tannehill is subject or any of the Assets are bound; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), or the creation of any Encumbrance pursuant to, or cause or permit the acceleration prior to maturity of any amounts owing under any indenture, mortgage, deed of trust, lease or other agreement to which Tannehill is a party or to which any of the Assets are subject, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. b. The execution, delivery and performance of this Agreement by Tannehill will not result in the loss of any governmental license, franchise or permit possessed by Tannehill related to the Assets or give a right of acceleration or termination to any party to any agreement or other instrument to which Tannehill is a party and by which the Assets are bound, or result in the loss of any right or benefit under such agreement or instrument.

10 3.3 Financial Statements. Tannehill has heretofore furnished to Berry true and correct copies of the balance sheets of Tannehill as of December 31, 1994, December 31, 1995, and September 30, 1996, and the related statements of revenue and expenses for the periods then ended (collectively, the "Financial Statements"). The Financial Statements have been prepared in accordance with the books and records of Tannehill and in conformity with historical accounting principles applied, except as otherwise noted therein, on a basis consistent with prior periods, and fairly present, in all material respects, the financial position and results of operations of Tannehill as at and for the periods specified therein. As of September 30, 1996, Tannehill did not have any liability of any kind or manner, either direct, accrued, absolute or otherwise, which was required to be disclosed by accepted accounting principles and which was not reflected or disclosed in the Financial Statements and there have been no changes in Tannehill's method of accounting for tax purposes or other purposes, except as disclosed in the Tannehill Disclosure Letter. 3.4 Taxes and Tax Returns. Tannehill has filed all federal, state, local and foreign income and other tax returns required to be filed by it, and each such return is complete and accurate in all material respects. The taxes shown due on such returns have been paid and there are no taxes, interest, penalties, assessments or deficiencies (any of the foregoing being referred to herein as a "Tax") claimed to be due in respect of such tax returns or claimed in writing to be due by any taxing authority. The tax returns of Tannehill have not been audited by the IRS, nor has Tannehill received notice of any examination being conducted by the IRS or any other taxing authority for any fiscal year. All other taxes, including property taxes, imposed by the United States and by any state, municipality, subdivision or instrumentality of the United States, or other taxing authority, which are due and payable by Tannehill have been paid in full or will be paid or provided for up to the Closing date. 3.5 Absence of Adverse Change. Since December 31, 1995, there has not been (a) any Material adverse change in the condition of the Assets to be acquired by Berry; (b) any damage, destruction or loss adversely affecting the Assets; (c) any incurrence by Tannehill of or entry into any liability, mortgage, lien or transaction affecting the Assets; (d) any guarantee of or grant of a security interest to secure a third Person's obligations by Tannehill; (e) except as provided in the Tannehill Disclosure Letter, any commitment by Tannehill relating to the Assets; or (f) any agreement, in writing or otherwise, with respect to the foregoing. No event or condition has occurred or exists and Tannehill is not aware of any event or condition that has occurred or exists and that could result in a Material adverse change in the Assets since December 31, 1995. 3.6 No Misleading Statements. This Agreement, the exhibits hereto and the information referred to herein, when taken as a whole, do not include any untrue statement of a material fact and do not omit any material fact necessary to make the statements contained herein or therein not misleading. 3.7 No Significant Transactions. Except for the execution of this Agreement, Tannehill has not engaged in any Material transactions and will not engage in any Material transactions prior to the Closing.

11 3.8 Properties, Title and Related Matters. a. Tannehill has good title to all of the personal property included in the Assets free and clear of all Encumbrances, except for Permitted Encumbrances. b. Other than the Section 32 Property, there is no real property owned by Tannehill. The Section 32 Property is not subject to any governmental decree or is not being condemned, expropriated or otherwise taken by any public authority, with or without payment of compensation therefor, and no such condemnation, expropriation or taking has been proposed. The Tannehill Disclosure Letter contains a description of all buildings, structures, improvements, tanks and pipes or other fixtures located on or under the Section 32 Property. c. Other than as set forth in Exhibits 3 and 4, Tannehill has no easements or rights of way and no real property is leased by Tannehill. Tannehill has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any easement, right of way or other agreement pursuant to which the Real Property is held and all of such easements, rights of way or other agreements are in full force and effect. There are no pending or threatened disputes with respect to any easement, right of way or other agreement pursuant to which the Real Property is held and the lessor or grantor thereunder has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any such easement, right of way or other agreement. The Tannehill Disclosure Letter contains a description of all structures, improvements, tanks and pipes or other fixtures located on or under any easements or rights of way described in Exhibits 3 and 4. d. Since the physical inspection by Berry on September 5, 1996, the maintenance and operation of buildings, machinery, wells, pipelines and equipment of Tannehill has been consistent with the past maintenance and operation of such Assets, ordinary wear and tear excepted, and, except as described in the Tannehill Disclosure Letter, all machinery, wells, pipelines and equipment are operative in all material respects. Berry shall acquire such Assets AS IS and WHERE IS. Tannehill makes no representations or warranties as to the suitability of any Asset for any particular use. e. Attached to the Tannehill Disclosure Letter is a correct and complete list and copies of all policies of fire, liability and other forms of insurance held by Tannehill and presently in force with respect to the Assets. Such policies are in full force and effect and assignable and Tannehill is not in default under any of them. f. Tannehill is not in material violation of and, except as disclosed in the Tannehill Disclosure Letter, Tannehill has not received any written notice of any violation of any zoning regulation, ordinance, law, rule, order, regulation or requirement relating to the Assets or operation of its leased or owned properties which remains uncured or which has not been dismissed where failure to comply therewith would have a Material adverse effect on Tannehill or the Assets.

12 3.9 Legal Proceedings. Except as disclosed in the Tannehill Disclosure Letter, there is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending or threatened against Tannehill or the Assets, or affecting any of the Assets which, if adversely determined would have a Material adverse effect on the Assets. Tannehill is not in violation of or default under any laws, ordinances, regulations, judgments, injunctions, orders or decrees (including, without limitation, any immigration laws or regulations) of any court or other Governmental Entity applicable to its business, which violations or defaults would have a Material adverse effect on the Assets. There are no Material judgments, orders, injunctions or decrees of any Governmental Entity in which Tannehill is a named party or any of the Assets are identified and subject. Except for the SOCAL Litigation (as that term is defined in the TEC Purchase Agreement), and the Baker Litigation, there is no pending litigation in or to which Tannehill is a named party or any of the Assets of Tannehill are identified and subject. 3.10 Records. Tannehill has records that accurately reflect its transactions and transactions that affect the Assets in all Material respects. 3.11 Contracts. a. All contracts, agreements, indentures and other instruments to which Tannehill is a party are attached to the Tannehill Disclosure Letter. Except for the agreements attached to the Tannehill Disclosure Letter, Tannehill is not a party to or bound by (i) any agreement, contract or commitment limiting the freedom of Tannehill or any Affiliate of Tannehill to engage in any line of business, to own, operate, sell, transfer, pledge or otherwise dispose of or encumber any Asset or to compete with any Person in any geographical area; (ii) any agreement, contract or commitment relating to the Assets; or (iii) any agreement, contract or commitment that will have a Material adverse effect on the Assets. b. Except as disclosed in the Tannehill Disclosure Letter, Tannehill has not breached any provision of or is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any agreement attached to the Tannehill Disclosure Letter. All contracts, agreements, indentures and other instruments attached to the Tannehill Disclosure Letter are in full force and effect. There are no pending or threatened disputes with respect to the contracts, agreements, indentures or instruments attached to the Tannehill Disclosure Letter. Tannehill is not obligated to pay any liquidated damages under any of the agreements, indentures or other instruments attached to the Tannehill Disclosure Letter and Tannehill is not aware of any facts or circumstances that could reasonably be expected to result in an obligation of Tannehill to pay such liquidated damages. 3.12 Brokerage. No investment banker, broker or finder has acted directly or indirectly for Tannehill in connection with this Agreement or the transactions contemplated hereby. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect thereof based in any way on agreements, arrangements or understandings made by or on behalf of Tannehill. Tannehill agrees to indemnify, defend and hold Berry harmless from and against any and all claims, liabilities or

13 obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Tannehill with respect to any such fee, expense or commission. 3.13 Execution and Delivery. Tannehill has full power and authority to execute and deliver this Agreement and to perform its obligations hereunder. The execution and delivery of this Agreement by Tannehill and the performance of its obligations hereunder have been duly authorized by all necessary corporate action on its part, including unanimous approval by the Shareholders. This Agreement has been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 3.14 Environmental Matters. a. To the best of Tannehill's knowledge, Tannehill has at all times operated in compliance with all applicable limitations, restrictions, conditions, standards, prohibitions, requirements and obligations of Environmental Laws and related orders of any court or other Governmental Entity. b. To the best of Tannehill's knowledge, Tannehill is not in violation of or subject to (i) any existing, pending or threatened action, suit, investigation, inquiry or proceeding by or before any court or other Governmental Entity or (ii) any remedial obligations, in each case under any applicable Environmental Law relating to the Assets or operations conducted thereon by any Person at any time during which such Assets were owned, leased, used or operated by or for the benefit of Tannehill, or by any Person prior to such time to the extent Tannehill has knowledge of such matters. c. To the best of Tannehill's knowledge, all notices, permits, licenses or similar authorizations, if any, required to be obtained or filed by Tannehill under all applicable Environmental Laws in connection with its past or present operation or use of any and all Assets or the conduct of its business, including but not limited to past or present treatment, storage, disposal or release of a hazardous substance or solid waste into the environment, have been duly obtained or filed. d. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Assets or by any Person in connection with the ownership, lease, use or operation of the Assets have, at any time during which such Assets were owned, leased, used or operated by or for the benefit of Tannehill or any Affiliate thereof, been transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws.

14 e. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Assets or by any prior owner or operator of the Assets were transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws. f. To the best of Tannehill's knowledge, no Person has, at any time during which the Assets were owned, leased, used or operated by or for the benefit of Tannehill, disposed of or released any hazardous substance or solid waste on or under the Assets, except in compliance with all applicable Environmental Laws. g. To the best of Tannehill's knowledge, no Person has disposed of or released any hazardous substance or solid waste on, under or around the Assets, except in compliance with all applicable Environmental Laws. h. To the best of Tannehill's knowledge, no facts or circumstances exist which could reasonably be expected to result in any liability to any Person with respect to the current or past business and operations of Tannehill or the Assets in connection with any release, transportation or disposal of any hazardous substance or solid waste or action taken or omitted that was not in full compliance with or was in violation of any applicable Environmental Law. 3.15 Employees. a. Tannehill has no employees. b. Officers of Tannehill shall not assert claims against Berry based on employment by Tannehill for severance, retirement benefits, health benefits, deferred compensation, violations of any federal, state or local laws or statutes, wages or other benefits or compensation. Officers of Tannehill not employed by Berry shall not assert any claim against Berry for discriminatory hiring practices based on state or federal laws or statutes, union contracts or for benefits based upon the Employee Retirement Income Security Act of 1974, as Amended ("ERISA"). c. Tannehill is not currently nor has it ever been a party to any officer or employee pension or welfare plan to which ERISA applies or to which Tannehill was required to make contributions for the benefit of its employees, officers or directors. d. Neither Tannehill nor any of its Affiliates is a party to, or bound by, any collective bargaining agreement, contract or other agreement or understanding with a labor union or labor union organization. There is no unfair labor practice or labor arbitration proceeding pending or threatened against Tannehill or any of its Affiliates relating to their business which, if determined adversely to Tannehill or the Affiliate would have a Material adverse effect. There are no organizational efforts with respect to the formation of a collective bargaining unit presently being made or threatened involving Tannehill or any of its Affiliates.

15 3.16 Investigation. Tannehill and its agents, counsel and accountants have had reasonable access to representatives of Berry to make such investigations as they desired with respect to the business, operations and affairs of Berry in connection with the transactions contemplated hereby. In determining whether to consummate the transactions contemplated hereby, Tannehill is relying solely on the terms, covenants, representations, warranties and indemnities herein and on their own investigations into and analysis of the business, operations and condition (financial or otherwise) of Berry and have not relied on Berry, or its officers or directors, with respect to the interpretation of data relating to the valuation of Tannehill, the income tax ramifications of this purchase and sale, and/or the ability of Berry to operate the Assets. 3.17 Operating Agreements. There are no agreements between Tannehill and any Person or entity regarding the ownership or operation of the Section 32 Property. ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY Except as set forth in the Disclosure Letter from Berry delivered to Tannehill at or prior to the execution hereof, which shall refer to the relevant Sections of this Agreement (the "Berry Disclosure Letter"), Berry hereby represents and warrants to and covenants with Tannehill as follows: 4.1 Corporate Organization. Berry is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware and has all requisite corporate power and authority to carry on its business as it is now being conducted, and to execute, deliver and perform this Agreement and to consummate the transactions contemplated hereby. 4.2 Due Authorization, Execution and Delivery; Effect of Agreement. The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby have been duly authorized by all necessary corporate action on the part of Berry. This Agreement has been duly and validly executed and delivered by Berry and constitutes the legal, valid and binding obligation of Berry, enforceable against it in accordance with its terms, except to the extent that such enforceability (a) may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally; and (b) is subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or authorization of any Person, except as otherwise disclosed in the Berry Disclosure Letter; (ii) do not violate any provision of the Certificate of Incorporation or Bylaws of Berry; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other

16 Governmental Entity to which Berry is subject; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), or the creation of an Encumbrance pursuant to, or cause or permit the acceleration prior to maturity of any amounts owing under, any indenture, mortgage, deed of trust, lease, or other agreement to which Berry is a party, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. 4.3 Consents. Except as otherwise disclosed in the Berry Disclosure Letter, no consent, approval or authorization of, or exemption by, or filing with, any Governmental Entity or any Person is required in connection with the execution, delivery or performance by Berry of this Agreement or the taking of any other action contemplated hereby. 4.4 Litigation. There is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending against Berry, or threatened against Berry, which seeks to enjoin or obtain damages in respect of the consummation of the transactions contemplated hereby. 4.5 Brokerage. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect of this Agreement or the transactions contemplated hereby based in any way on agreements, arrangements or understandings made by or on behalf of Berry. Berry agrees to indemnify and hold Tannehill and the Partners harmless from and against any and all claims, liabilities or obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Berry with respect to any such fee, commission or expense. 4.6 Approvals. No approval of the stockholders of Berry is necessary or required under the Delaware General Corporation Law, as currently in effect, or Berry's Certificate of Incorporation or Bylaws for the consummation of the transactions contemplated by this Agreement. ARTICLE V COVENANTS OF TANNEHILL From and after the date of this Agreement until the Closing, except as expressly authorized by this Agreement or expressly consented to in writing by Berry, Tannehill covenants and agrees with Berry as follows: 5.1 Access to Tannehill. Tannehill shall afford to Berry and to the employees, agents, lenders, investors and authorized representatives of Berry and to their respective counsel and accountants such reasonable access to the Assets, officers, offices, equipment, files, agreements, documents, and books and records of Tannehill (including, without

17 limitation, engineering data and information, computer programs, tapes and other records), and the opportunity to make notes, abstracts and copies therefrom, as may be requested by Berry in order that Berry may have full opportunity to make such reasonable investigations as it shall desire with respect to the business, operations, Assets and affairs of Tannehill in connection with the transactions contemplated hereby and Tannehill shall furnish Berry with such additional financial and operating data and other information as to the business, operations and Assets of Tannehill as Berry shall, from time to time, reasonably request for such purpose. Berry hereby releases Tannehill from all liability arising out of the entry by Berry or its employees, agents, lenders, investors or authorized representatives onto the business premises of Tannehill for purposes of conducting the investigation contemplated by this Section 5.1. Berry hereby agrees to indemnify, defend and hold harmless Tannehill against all liability, demands, claims, costs, losses, damages, recoveries, settlements and expenses incurred by Tannehill arising from or related to the conduct by Berry or its employees, agents, lenders, investors or authorized representatives of the investigation. 5.2 Governmental Approvals; Consents. a. Tannehill shall use its best efforts, and shall cooperate with Berry, to obtain all permits, approvals and consents, and to make all filings, necessary or required to be obtained or made, and to begin and cause all waiting periods required to lapse, for Berry to have full use and enjoyment of the Assets subsequent to the purchase and sale and for the consummation by Tannehill of the transactions contemplated by this Agreement under any applicable federal law or the applicable laws of any state having jurisdiction over the transactions contemplated hereby (all such permits, approvals, filings and consents and the lapse of all such waiting periods being referred to as the "Requisite Regulatory Approvals"). b. Tannehill shall use its best efforts to obtain all consents, approvals, clearances, waivers, orders or authorizations of any Person necessary to be obtained by Tannehill for Berry to have full use and enjoyment of the Assets subsequent to the purchase and sale and for the consummation of the transactions by Tannehill contemplated by this Agreement. 5.3 Litigation and Claims. Tannehill shall promptly inform Berry in writing of any litigation, or of any claim or controversy or contingent liability of which Tannehill becomes aware that might reasonably be expected to become the subject of litigation, against Tannehill or affecting any of the Assets. 5.4 Notice of Changes. Tannehill shall promptly inform Berry in writing if Tannehill becomes aware of any change that shall have occurred or that shall have been threatened (or any development that shall have occurred or that shall have been threatened involving a prospective change) in the financial condition, results of operations, business of the Assets or of Tannehill that is or with the exercise of reasonable business judgment would be expected to have an adverse effect on the Assets. Tannehill shall promptly inform Berry in writing if any representation or warranty made by Tannehill in this Agreement shall cease to be accurate or upon the occurrence of any breach of any covenant or other agreement required by this Agreement to be performed or complied with by Tannehill.

18 5.5 Conduct of Business Operations. Tannehill shall not, without the prior written consent of Berry: a. Other than in the ordinary course of business, sell, lease or otherwise dispose of any Assets or any interests therein, or enter into, or consent to the entering into of, any agreement granting to any third Person a right to purchase, lease or otherwise acquire any Assets or interests therein, except as otherwise provided for in this Agreement; b. Enter into any agreement or incur any obligation, the terms of which would be violated by the consummation of the transactions contemplated by this Agreement; c. (i) Enter into any new line of business with respect to the Assets; (ii) change its investment, liability management and other material policies in any respect; (iii) incur or commit to any capital expenditures or financing; (iv) waive any right under or cancel any contract, debt or claim listed in any exhibits hereto or the Tannehill Disclosure Letter, which waiver or cancellation would have an adverse effect on the Assets; d. Enter into any contract, commitment or arrangement to amend, modify, supplement or otherwise alter the terms of any existing contract, agreement or instrument attached to the Tannehill Disclosure Letter with any Person; e. Maintain its books of account other than in the usual, regular and ordinary manner in accordance with good business practices or make any change in any of its accounting methods or practices; or f. Take any action that would or might reasonably be expected to result in any of the conditions to Closing set forth in Article VII hereof not being satisfied. g. From the Effective Date to the Closing, fail to use its best efforts to maintain the daily production over any calendar week during the period below the average historical daily production from the Section 32 Property. 5.6 Maintain Assets and Operations. During the period from the date hereof through the Closing, Tannehill shall (a) carry on its business in the usual, regular and ordinary course in a good and diligent manner consistent with sound business practices and in compliance with all applicable laws, rules and regulations; (b) not introduce any new method of management or operation; (c) preserve in full force and effect all leases, operating agreements, easements, rights of way, permits, licenses, contracts and other agreements which relate to the Assets (other than those expiring by their terms); (d) use its best efforts to perform or cause to be performed all of its obligations in or under any of such leases, agreements and contracts to be transferred to Berry hereunder; (e) use its best efforts to safeguard and maintain secure all reports and other confidential data in the possession of Tannehill relating to the Assets; and (f) use its best efforts to operate its business and activities in the same manner as they have been carried out and to

19 maintain the same level of expenditure as have previously been incurred in connection with such business and activities. 5.7 Exclusive Dealing. Tannehill shall not directly or indirectly, through any representative or otherwise, solicit or entertain offers from, negotiate with or in any manner encourage, discuss, accept or consider any proposal of any Person relating to the acquisition of the Assets or business, in whole or in part, of Tannehill, whether through direct purchase, consolidation or other business combination (other than sales of inventory or in the ordinary course of business) so long as this Agreement has not been terminated. Tannehill recognizes that Berry has and continues to incur substantial time and expense in evaluating this transaction. Tannehill acknowledges that Berry, in reliance on this Section 5.7, will continue to incur additional time, effort and expense. Tannehill has agreed to this provision due to the unique terms specified in the AIP and contemplated in this transaction. 5.8 Termination Fee. In the event that Tannehill breaches Section 5.7 hereof and within twelve (12) months after such breach or termination, Tannehill closes a transaction with an unrelated third party relating to the acquisition of a Material portion of the Assets or the business of Tannehill, in whole or part, whether through direct purchase, merger, consolidation or other business combination (other than sales of inventory or immaterial portions of Tannehill's Assets in the ordinary course), then, immediately upon such closing, Tannehill shall pay to Berry the sum of One Hundred Thousand Dollars ($100,000). Such payment shall constitute liquidated damages and, in the absence of fraud or bad faith, shall be in lieu of any other penalty or remedy Berry might otherwise seek, the parties having determined that the

20 actual damages resulting from the events for which such liquidated damages are to be awarded would be extremely difficult and uncertain to calculate and that liquidated damages above represent a good faith estimate of such actual damages. ___________ __________ Tannehill initials Berry initials ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ Shareholders' initials 5.9 Taxes. Tannehill shall pay any documentary transfer tax due on the purchase and sale of the Assets. ARTICLE VI COVENANTS OF BERRY Berry hereby covenants and agrees with Tannehill as follows: 6.1 Cooperation. Subject to the terms and conditions of this Agreement, Berry shall cooperate with Tannehill to use its best efforts to secure all necessary consents, approvals, authorizations, exemptions and waivers from all Persons and Governmental Entities as shall be required to be obtained by Berry in order to enable Berry to consummate the transactions contemplated hereby. 6.2 Governmental Approvals. Berry shall use its best efforts, and shall cooperate with Tannehill, to obtain all Requisite Regulatory Approvals. 6.3 Disclosure Responsibilities. Berry, as a reporting company under Section 12 of the Securities Exchange Act of 1934, as amended ("Exchange Act"), and listed company under the New York Stock Exchange (the "NYSE"), is required to comply with certain disclosure requirements regarding its business activities, including, but not limited to, the issuance of press releases and the preparation and filing of periodic reports with the Securities and Exchange Commission. In order to comply with the disclosure requirements of the Exchange Act and NYSE, as well as the timing of such disclosures, all statements to the public, including press releases, shall be at the sole discretion of Berry.

21 ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY The obligations of Berry to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Berry) on or prior to the Closing of all of the following conditions: 7.1 Accuracy of Representations and Warranties. The representations and warranties of Tannehill set forth in this Agreement shall be true and correct in all respects as of the date when made and at and as of the Closing. 7.2 Performance of Covenants and Agreements. Tannehill shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by it prior to or at the Closing. None of the events or conditions entitling Berry to terminate this Agreement under Article IX hereof shall have occurred and be continuing. 7.3 Consents. Any consent required for the consummation of this purchase and sale under any agreement, contract, license or other instrument described in any exhibit hereto or referred to herein, or for the continued enjoyment by Berry of any benefits of such agreement, contract, license or other instrument after the Closing, which consent Tannehill is specifically obligated to obtain pursuant to this Agreement, shall have been obtained and be effective. 7.4 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect. 7.5 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Nordman, Cormany, Hair & Compton, counsel to Berry. 7.6 Officers' Certificate. Berry shall have received a certificate of Tannehill, substantially in the form of Exhibit 8 attached hereto and made a part hereof, satisfactory in form and substance to Berry, executed on behalf of Tannehill by its President and Secretary, as to compliance with the matters set forth in Sections 7.1, 7.2, 7.3 and 7.4 of this Agreement. 7.7 Resolutions. Berry shall have received certified copies of Resolutions of the Board of Directors of Tannehill and the written consent of the Shareholders owning one hundred percent (100%) of the outstanding shares of common stock of Tannehill approving this Agreement, and the transactions contemplated hereby. 7.8 Opinion of Counsel. Berry shall have received the opinion of Roger Coley, counsel to Tannehill and the Shareholders, in form and content satisfactory to Berry, substantially in the form of Exhibit 9 attached hereto and made a part hereof.

22 7.9 Closing of Agreements. The Closing shall not occur unless the Closings contemplated by the Partnership Purchase Agreement and the TEC Purchase Agreement have occurred or will occur concurrently with the Closing. 7.10 Condition of Section 32 Property. Berry shall have approved title to and the condition of the Section 32 Property as follows: a. A current CLTA Preliminary Title Report prepared by First American Title Company covering the Section 32 Property, accompanied by legible copies of all documents referred to as exceptions in the report to the extent reasonably available through Tannehill's best efforts and a map plotting all easements (the "PTR"), has been delivered to Berry by Tannehill. b. If Berry elects to obtain an ALTA Policy, a survey of the Section 32 Property shall have been prepared, at Berry's expense, by a licensed surveyor or registered civil engineer, in sufficient detail to provide for the policy of title insurance to be purchased by Berry, certified to Berry in a form satisfactory to Berry, without boundary, encroachment or survey exceptions and which shows the location of all easements and improvements. It shall be Berry's sole responsibility to obtain such survey by the Title Approval Date defined below. Berry's failure to do so will be deemed Berry's waiver of this condition. If Berry does not elect to obtain an ALTA Policy, then Tannehill shall provide Berry with a CLTA Policy at Tannehill's expense. c. Title shall be free of Encumbrances not approved by Berry. On or before November 8, 1996 (the "Title Approval Date"), Berry shall advise Tannehill in writing of what exceptions to coverage, if any, are unacceptable to Berry (the "Title Disapproval Notice"). Notwithstanding any other provision of this Section 7.10, Berry hereby objects to all monetary Encumbrances, which monetary Encumbrances (if any) Tannehill shall cause to be eliminated at the Closing except for non-delinquent real property taxes and assessments, which shall be one of the exceptions to coverage. Tannehill shall have ten (10) business days after receipt of a Title Disapproval Notice to give Berry notice either: (i) that Tannehill will remove, on or before the Closing, any disapproved exceptions to coverage and provide Berry with evidence satisfactory to Berry of such removal; or (ii) that Tannehill elects not to cause such exceptions to coverage to be removed, in which case Berry shall have five (5) business days thereafter to notify Tannehill in writing of Berry's election (a) to waive any objectionable exceptions and to proceed with the purchase of and to take the Section 32 Property subject to such exceptions, but otherwise pursuant to the terms of this Agreement, or (b) to terminate this Agreement. If Berry shall fail to give Tannehill notice of such election within said five (5) business days, Berry shall be deemed to have elected to waive its objection to the coverage and to proceed with this purchase. In the event that during escrow any amended or supplemented PTR is issued disclosing new exceptions to coverage, Berry shall again have the right to give a Title Disapproval Notice as to such new exception, in which case all the foregoing rights of the parties following the giving of such a notice shall again apply as stated above.

23 d. Berry shall not have given written notice of disapproval of matters related to the Section 32 Property. Berry's failure to give written notice of disapproval on or before November 8, 1996 (the "Property Approval Date") of all aspects and matters related to the Section 32 Property, including size, shape, configuration, access, easements (express, implied and by prescription), geologic/subsidence and soil conditions, hydrologic conditions, water supply quantity and quality, buildings, tanks, pipelines, oil and gas wells, oils and gas surface equipment, and the condition of all other fixed equipment shall be deemed to be approved. To facilitate Berry's review, Tannehill shall deliver to Berry within fifteen (15) business days after the date of this Agreement, (i) any environmental reports prepared by or for Tannehill covering all or any portion of the Section 32 Property, without representation or warranty as to their accuracy or validity; (ii) copies of any service contracts now in effect, all of which are cancelable at any time, or by the giving of not more than thirty (30) days' notice; and (iii) any well logs and reports of water usage made to the Regional Water Quality Control Board, the Division of Oil, Gas and Geothermal Resources and other agencies, as applicable. e. Berry shall be satisfied that there are no Hazardous Materials, as that term is defined by all or any applicable laws, on the Section 32 Property or in the groundwater thereunder and Berry's acceptance and approval of an Environmental Audit and Assessment ("Phase I Report") as to the Section 32 Property performed at Berry's direction and sole cost and expense. Berry's failure to give notice of disapproval of the Phase I Report obtained by Berry, if any, on or before the Property Approval Date shall be deemed as Berry's approval thereof and acceptance of the Section 32 Property in its present condition. In the event such Phase I Report or any Phase II Report involving soil and/or groundwater tests, approved in advance by Tannehill, discloses that the Section 32 Property or groundwater thereunder is contaminated with Hazardous Materials in quantities requiring remediation or removal under existing law, Berry shall have the right to terminate this Agreement. Except as provided in the succeeding sentence, Berry agrees that the Phase I Report and any other report, tests, and information and conclusions stated therein shall be kept confidential and that any reporting requirements to any governmental agency or any other third party arising therefrom shall be the sole responsibility of Tannehill. Notwithstanding the foregoing, in the event that any then applicable law, statute or ordinance requires Berry to report or disclose the Report or Report findings to a governmental agency, then and only then shall Berry disclose the Report findings. In no event shall Berry be entitled to conduct any soil borings or groundwater tests without Tannehill's prior written approval, which may be conditioned or denied in Tannehill's sole discretion. f. Berry shall have received an affidavit, certification or notice required by Section 1445 of the Code and the Regulations pursuant thereto. In addition, Tannehill shall have provided Berry with the certification required to show that withholding is not required pursuant to California Revenue and Taxation Code Section 18662(e). 7.11 Good Standing Certificates. Tannehill shall have delivered valid Good Standing Certificates from the Secretary of State of California and the California Franchise Tax Board showing Tannehill in good standing.

24 ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL The obligations of Tannehill to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Tannehill) on or prior to the Closing of all of the following conditions: 8.1 Accuracy of Representations and Warranties. The representations and warranties of Berry set forth in this Agreement shall be true and correct in all material respects as of the date when made and at and as of the Closing. 8.2 Performance of Covenants and Agreements. Berry shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by it prior to or at the Closing. None of the events or conditions entitling Tannehill to terminate this Agreement under Article IX hereof shall have occurred and be continuing. 8.3 Resolutions. Tannehill shall have received certified copies of resolutions of the Board of Directors of Berry approving this Agreement and the transactions contemplated hereby. 8.4 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Roger Coley, counsel to Tannehill and the Shareholders. 8.5 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect. 8.6 Officers' Certificate. Tannehill shall have received a certificate of Berry, substantially in the form of Exhibit 10 attached hereto and made a part hereof, satisfactory in form and substance to Tannehill, executed on behalf of Berry by the President and Secretary of Berry, as to compliance with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of this Agreement. 8.7 Opinion of Counsel. Tannehill shall have received the opinion of Nordman, Cormany, Hair & Compton, counsel to Berry, in form and content reasonably satisfactory to Tannehill, substantially in the form of Exhibit 11 attached hereto and made a part hereof. 8.8 Closing of Agreements. The Closing shall not occur unless the Closings contemplated by the Partnership Purchase Agreement and the TEC Purchase Agreement have occurred or will occur concurrently with the Closing.

25 ARTICLE IX TERMINATION PRIOR TO CLOSING 9.1 Termination. This Agreement may be terminated at any time prior to the Closing: a. By the mutual written consent of Berry and Tannehill; b. Subject to the right of either party to extend the Closing as provided in Section 2.7 hereof, upon written notice by either party to the other party if Closing has not occurred forty-five (45) days after the execution of this Agreement; c. By Berry in writing if Tannehill or the Shareholders shall be in Default; d. By Tannehill in writing if Berry shall be in Default; e. By Berry if, after the date of this Agreement, there shall have occurred a Material adverse change (or any development or condition involving a prospective Material adverse change) in the business, financial condition or results of operations of Tannehill; or f. By Berry if the transaction is not approved by all the Shareholders. 9.2 Effect on Obligations. Termination of this Agreement pursuant to this Article shall terminate all obligations of the parties hereunder, except for the obligation under Sections 3.12 and 4.5; provided, however, that termination pursuant to paragraphs 9.1c or d hereof shall not relieve any defaulting party from any liability to the other parties hereto. ARTICLE X INDEMNIFICATION 10.1 Indemnification by Berry. Berry agrees to indemnify, defend and hold Tannehill, and agents of Tannehill, harmless from and against any and all loss, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Tannehill and its agents may incur or become subject to arising out of or due to any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Berry contained in this Agreement. 10.2 Indemnification by Tannehill and the Shareholders. Tannehill and the Shareholders, jointly and severally, agree to indemnify, defend and hold Berry, and the officers,

26 directors, employees and agents of Berry (collectively, the officers, directors, employees and agents being referred to in each case as its "Related Parties") harmless from and against any and all lawsuits, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Berry and its Related Parties may incur or become subject to arising out of or due to any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Tannehill or the Shareholders contained in this Agreement. Tannehill and the Shareholders also jointly and severally agree to indemnify, defend and hold Berry, and the Related Parties, harmless from any and all lawsuits, liability, damage, cost and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action and reasonable attorneys' fees) that Berry and its Related Parties may incur or become subject to arising out of or due to the actions of Baker Chemical or the Baker Litigation or attributable to environmental conditions created directly or indirectly by or as a result of the actions of Baker Chemical and/or its employees, officers and agents. 10.3 Survival. The several warranties, indemnities, representations, covenants and agreements of the parties contained in this Agreement and in any other instrument delivered pursuant hereto shall survive the Closing and shall remain in full force and effect thereafter. 10.4 Notice and Opportunity to Defend. a. If a party seeking indemnification (the "Indemnitee") becomes aware of any matters that it believes may give rise to an indemnifiable claim, or asserts any claim that it believes may be indemnifiable pursuant to this Agreement, the Indemnitee shall give the party obligated to provide indemnification (the "Indemnifying Party") prompt written notice of such matter or claim, stating with particularity the nature of such matter or the aforementioned claim and the amount thereof. Failure to provide such notice shall not affect the right of the Indemnitee to indemnification except to the extent such failure shall have resulted in liability to the Indemnifying Party that could have been actually avoided had such notice been provided within such required time period. b. If the matter that the Indemnitee believes gives rise to an indemnifiable claim does not involve a third party claim against an Indemnitee, the Indemnifying Party shall have thirty (30) days from the date on which it received notice of such claim pursuant to this Section to respond to such notice. If such Indemnifying Party accepts responsibility or does not respond within such thirty (30)-day period, the Indemnifying Party shall promptly pay to the Indemnitee the full amount of such claim. If the Indemnifying Party rejects any liability with respect to such claim, it shall give written notice of such objection to the Indemnitee within such thirty (30)-day period and the parties shall seek to resolve such claim by agreement. If the parties are unable to resolve such claim by agreement within sixty (60) days following the expiration of such thirty (30)-day period mentioned above, the parties shall be entitled to pursue, without prejudice to any of their rights hereunder, such remedies as may be available to the parties under applicable law.

27 c. In the event any action, suit, proceeding or investigation is brought against the Indemnitee by a third party which the Indemnitee believes may give rise to an indemnifiable claim, the Indemnitee shall give the Indemnifying Party prompt written notice of the commencement of such action, suit, proceeding or investigation as provided in paragraph a. of this Section. Such Indemnifying Party shall have a period of thirty (30) days after receipt of such notice within which to respond to such notice. If such Indemnifying Party does not respond within such thirty (30)-day period or rejects responsibility for such matter in whole or in part, the Indemnitee shall be free to pursue, without prejudice to any of its rights hereunder, such remedies as may be available to such party under applicable law. If such Indemnifying Party accepts responsibility, such Indemnifying Party shall, as between the Indemnitee and the Indemnifying Party, be obligated to compromise or defend such matter, at its own expense. The Indemnitee shall employ counsel of its choice and the Indemnifying Party shall reimburse the Indemnitee for attorneys' fees and costs. The Indemnifying Party shall cooperate fully with the Indemnitee and its counsel in the defense against any such asserted liability. Any compromise of such asserted liability by the Indemnitee shall require the prior written consent of the Indemnifying Party, which shall not be unreasonably withheld. If, however, the Indemnitee refuses its consent to a bona fide offer of settlement that involves solely the payment of cash that the Indemnifying Party wishes to accept, the Indemnitee may continue to pursue such matter, free of any participation by the Indemnifying Party, at the sole expense of the Indemnitee. In such event, the obligation of the Indemnifying Party to the Indemnitee shall be equal to the lesser of (i) the amount of the offer of settlement that the Indemnitee refused to accept plus the costs and expenses of the Indemnitee prior to the date the Indemnifying Party notified the Indemnitee of the offer of settlement; and (ii) the actual out-of-pocket amount the Indemnitee is obligated to pay as a result of such party's continuing to pursue such matter. An Indemnifying Party shall be entitled to recover from the Indemnitee any additional expenses incurred by such Indemnifying Party as a result of the decision of the Indemnitee to pursue such matter. 10.5 General. The indemnification provided in this Agreement shall apply regardless of whether the matter subject to indemnification involved an action taken or omitted that was negligent, grossly negligent or reckless by the Person to be so indemnified. It is understood that such indemnification is intended to be a means of compensating the parties for any damage or liability directly or indirectly realized by them for matters subject to such indemnification. To the extent the indemnification provided for herein may not be provided to any Person under law, such indemnification shall be required to be provided to any other Person for whom such indemnification may be permissible as herein provided. ARTICLE XI MISCELLANEOUS 11.1 Entire Agreement. This Agreement and related documents executed concurrently herewith constitute the sole understanding of the parties hereto with respect to the matters provided for herein and supersedes the AIP and any previous agreements and

28 understandings between the parties with respect to the subject matter hereof. No amendment, modification or alteration of the terms or provisions of this Agreement shall be binding unless the same shall be in writing and duly executed by Berry and Tannehill. 11.2 Successors and Assigns. This Agreement will inure to the benefit of and be binding upon Berry, Tannehill and the Shareholders and their respective successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by any of the parties hereto without the prior written consent of the other parties hereto. 11.3 Expenses. Except as provided in Sections 10.1 and 10.2 hereof, each party hereto shall be responsible for the payment of the fees and expenses of their respective counsel, accountants and other experts. 11.4 Taking of Necessary Action. Subject to the terms and conditions of this Agreement, each of the parties hereto agrees, subject to applicable laws, to use all reasonable best efforts promptly to take or cause to be taken all action and to promptly do or cause to be done all things necessary, proper or advisable under applicable laws and regulations to consummate and make effective the transactions contemplated by this Agreement. Without limiting the foregoing and subject to the terms and conditions of this Agreement, the parties shall use their reasonable best efforts to obtain and make all consents, approvals, assurances and filings of or with third parties and Governmental Entities necessary or advisable for the consummation of the transactions contemplated by this Agreement. Each party shall cooperate with the other in good faith to help the other satisfy its obligations hereunder. 11.5 Invalidity. Except for satisfaction of the conditions of Article VII or VIII, and the provisions of Article X, if any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic and legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner to the end that transactions contemplated hereby are fulfilled to the extent possible. 11.6 Attorneys' Fees. In the event of any claim, dispute or controversy arising out of or relating to this Agreement, including an action for declaratory relief, the prevailing party in such action or proceeding shall be entitled to recover its taxable costs or arbitration fees, and reasonable out-of-pocket expenses, including, but not limited to, telephone calls, photocopies, expert witnesses, travel, computer expenses related to litigation, and attorneys' fees to be fixed by the court or the arbitrator. Such recovery shall include court costs, out-of-pocket expenses and attorneys' fees on appeal, if any. The court shall determine who is the "prevailing party," whether or not the dispute or controversy proceeds to final judgment.

29 11.7 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original and all of which shall constitute the same instrument. 11.8 Headings. The headings of the articles, sections and paragraphs of this Agreement and of the exhibits hereto are included for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction hereof or thereof. 11.9 Construction and References. Words used in this Agreement, regardless of the number or gender specifically used, shall be deemed and construed to include any other number, singular or plural, and any other gender, masculine, feminine or neuter, as the context shall require. Unless otherwise specified, all references in this Agreement to articles, sections, paragraphs or clauses are deemed references to the corresponding articles, sections, paragraphs or clauses in this Agreement, and all references in this Agreement to exhibits are references to the corresponding exhibits attached to this Agreement. 11.10 Modification and Waiver. Any of the terms or conditions of this Agreement may be waived in writing at any time by the party which is entitled to the benefits thereof. No waiver of any of the provisions of this Agreement shall be deemed to or shall constitute a waiver of any other provisions hereof (whether or not similar). 11.11 Notices. Any notice, request, instruction or other document to be given hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: (a) if to Tannehill, to: Tannehill Oil Company, Inc. Attn: Mr. Albert G. Boyce, Jr., Treasurer and Chief Financial Officer 120 Manteca Avenue P.O. Box 871 Manteca, California 95336 Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014 with copies to: Roger Coley, Esq. 330 H Street, No. 7 Bakersfield, California 93304 Facsimile No. (805) 327-9120 Confirmation No. (805) 328-5575

29 (b) if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Facsimile No. (805) 769-8960 Confirmation No. (805) 769-8811 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Office Box 9100 Oxnard, California 93031-9100 Facsimile No. (805) 988-8387 Confirmation No. (805) 485-1000 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notices delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given.

31 11.12 Public Announcements. Without the prior express consent of Berry, neither Tannehill nor any Shareholder shall make any public statements, including, without limitation, any press releases, with respect to this Agreement and the transactions contemplated hereby. 11.13 Governing Law; Interpretation. This Agreement shall be construed in accordance with and governed by the laws of the State of California (regardless of the laws that might otherwise govern under applicable California principles of conflict of laws) as to all matters, including, but not limited to, matters of validity, construction, effect, performance and remedies.

32 11.14 Jurisdiction. Any legal action or proceeding with respect to this Agreement may be brought in the federal or state courts for the County of Kern, in the State of California, and by execution and delivery of this Agreement, Berry and Tannehill hereby accept the jurisdiction of the aforesaid courts. IN WITNESS WHEREOF, Berry and Tannehill have caused this Agreement to be executed as of the date first above written. BERRY PETROLEUM COMPANY, TANNEHILL OIL COMPANY, INC., a Delaware corporation a California corporation By: _____________________________ By: ________________________________ Jerry V. Hoffman, President John W. Tannehill, President and Chief Executive Officer By: _____________________________ By: ________________________________ Kenneth A. Olson, Secretary James L. Hinkle, Secretary The undersigned constitute all of the Shareholders of Tannehill and hereby agree jointly and severally to be bound to the terms of this Agreement including but not limited to the Agreement to Indemnify Berry Petroleum Company under the terms of this Article X of this Agreement. By signing this Agreement, the Shareholders of Tannehill hereby unanimously consent to the transfer of the Assets from Tannehill to Berry. BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation By: _____________________________ ______________________________________ Albert G. Boyce, Jr., President Albert G. Boyce, Jr., as Trustee and Secretary of Trust "B" Under Will of Albert G. Boyce, Sr., Deceased ___________________________________ ______________________________________ William J. Boyce Albert G. Boyce V ___________________________________ ______________________________________ Mary K. Boyce John T. Hinkle

33 ___________________________________ ______________________________________ Bettianne H. Bowen James L. Hinkle VERNIER RESOURCES CORPORATION, GENERAL WESTERN, INC., a Texas corporation a New Mexico corporation By: _____________________________ By: ________________________________ Bettianne H. Bowen, President James L. Hinkle, President and Secretary By: ____________________________ Cheryl Bailey Harrison, Secretary ___________________________________ ______________________________________ Lisle Q. Tannehill Thomas H. Tannehill ___________________________________ ______________________________________ Gail Kay Tannehill, as Trustee of Delmar R. Archibald, as Trustee of the the Gail Kay Tannehill Family Trust, Delmar R. Archibald Family Trust, dated April 9, 1996 dated June 22, 1982 ___________________________________ ____________________________________ John W. Tannehill Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated June 22, 1982 Spousal Consents The undersigned, spouses of the Shareholders named in this Agreement, hereby consent to the terms and conditions of this Agreement and agree that their community property, if any, included in the Assets, as defined herein, is subject to this Agreement. ___________________________________ ____________________________________ ___________________________________ ____________________________________ ___________________________________ ____________________________________

1 EXHIBIT 1 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: BERRY PETROLEUM COMPANY Attn: Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Order No. KER 1125444 A.P.N. 220-080-48-00-8 220-080-49-00-1 220-080-50-00-3 220-080-51-00-6 Escrow No. 1128321N GRANT DEED FOR A VALUABLE CONSIDERATION, receipt of which is hereby acknowledged, TANNEHILL OIL COMPANY, INC., a California corporation, hereby GRANT(S) to BERRY PETROLEUM COMPANY, a Delaware corporation, the following described real property in the County of Kern, State of California:

2 PARCEL 1: The North half of the Southwest quarter and the Southeast quarter of the Southwest quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known prior to November 1, 1901. Excepting and reserving therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from all zones lying below 4,500 feet below the surface of the above described parcel. PARCEL 2: The Southeast quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the City of Taft, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known prior to June 10, 1910. Excepting and reserving therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from all zones lying below 4,500 feet below the surface of the above described parcel. PARCEL 3: The Northeast quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the City of Taft, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known prior to October 26, 1910.

3 Excepting and reserving therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from all zones lying below 4,500 feet below the surface of the above described parcel. Dated: October 1, 1996 TANNEHILL OIL COMPANY, INC., a California corporation _____________________________________ By: John W. Tannehill, President _____________________________________ By: James L. Hinkle, Secretary STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ___________________, before me, , Notary Public, personally appeared JOHN W. TANNEHILL, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacities, and that by his signature on the instruments the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. __________________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ___________________, before me, , Notary Public, personally appeared JAMES L. HINKLE, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacities, and that by his signature on the instruments the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. __________________________________

4 STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: Kern County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: Tannehill Oil Company, Inc. [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T 32 S, R 24 E, Section 321 APN 220-080-48-00-8; 220-080-49-00-1; 220-080-50-00-3; 220-080-51-00-6 Amounts to: $________________ Amounts to: $___________________ (X) Unincorporated Area (X) City of Taft (X) Computed on full value (X) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value and encumbrances remaining LESS liens and encumbrances remaining Documentary Transfer Tax $____________ Computed on full value of property conveyed Tannehill Oil Company, Inc. By: _________________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: __________________________ By: _____________________________________ Title: _____________________________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

1 EXHIBIT 2 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. BILL OF SALE FOR VALUABLE CONSIDERATION, TANNEHILL OIL COMPANY, INC., a California corporation ("Seller"), hereby grants, bargains, transfers and sells to BERRY PETROLEUM COMPANY, a Delaware corporation (hereinafter referred to as "Buyer"), the personal property listed on Schedule A attached hereto and incorporated herein by this reference as though set forth in full (the "Personal Property"). Seller represents and warrants to Buyer that it is the lawful owner of and holds good and marketable title to the Personal Property, free and clear of restrictions on or conditions to transfers or assignment, and free and clear of all liens, pledges, charges or encumbrances of any nature whatsoever. Seller and Seller's successors and assigns shall warrant and defend Seller's good and marketable title to the Personal Property and Seller's right to sell the same against the lawful claims and demands of all persons whomsoever. Buyer acknowledges and agrees that it will purchase the Personal Property AS IS and WHERE IS. Seller makes no representations or warranties regarding the suitability of the Personal Property for any particular use. DATED this 1st day of October, 1996. BERRY PETROLEUM COMPANY, TANNEHILL OIL COMPANY, INC., a a Delaware corporation California corporation By: _____________________________ By: ______________________________ Jerry V. Hoffman, President John W. Tannehill, President and Chief Executive Officer By: _____________________________ By: ______________________________ Kenneth A. Olson, Secretary James L. Hinkle, Secretary "Buyer" "Seller"

2 SCHEDULE A TO EXHIBIT 2 BILL OF SALE ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC.

3 Tannehill Oil Company, Inc. Fixed Assets as of 10/1/96 Date in Service Division/Class Number Description CLASS: 8O - LEASE/WELL GENERAL 01/01/93 00 80 93001 Test 01/01/93 00 80 93002 100 bbl. tank #31 01/01/93 00 80 93003 100 bbl. tank #52 01/01/93 00 80 93004 FWI/Simplex Pump 01/01/93 00 80 93005 100 bbl. Tank #231 01/01/93 00 80 93006 Gas Trap/Scrubbe 01/01/93 00 80 93007 1600 bbl. Prod TA 01/01/93 00 80 93008 1600 bbl. Prod TA 01/01/93 00 80 93009 LACT Unit 01/01/93 00 80 93010 Heater-Treater 01/01/93 00 80 93011 Shipping Pump 01/01/93 00 80 93012 500 bbl. wash tank 01/01/93 00 80 93013 Shipping Pump H1 01/01/93 00 80 93014 Pumping Unit (Nat 01/01/93 00 80 93015 Pumping Unit - Luf 01/01/93 00 80 93016 Pumping Unit - Bet 01/01/93 00 80 93017 Pumping Unit - Luf 01/01/93 00 80 93018 Pumping Unit - Luf 01/01/93 00 80 93019 Pumping Unit - Luf 01/01/93 00 80 93020 Pumping Unit - Nat 01/01/93 00 80 93021 Pumping Unit - Nat 01/01/93 00 80 93023 Valves/Fittings

1 EXHIBIT 3 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-080-48-00-8 220-080-49-00-1 220-080-50-00-3 220-080-51-00-6 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment"), dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL OIL COMPANY, INC., a California corporation ("Assignor"), whose address is 29091 Highway 33 Maricopa, California 93252, P.O. Box 98, Taft, California 93268, to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. 1. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996 by and between Berry Petroleum Company and Tannehill Oil Company, Inc. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule A to this Assignment (hereinafter collectively called and referred to as the "Assets")

2 and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Assets. 2. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. 3. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Assets conveyed hereby or intended so to be. 4. Schedule. Reference is made to Schedule A attached hereto and made a part hereof for all purposes. Reference in such Schedule A to instruments on file or recorded in the public records are made for all purposes. 5. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. 6. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 7. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. 8. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedule A that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with a complete Schedule A. Another counterpart of this Assignment with a complete Schedule A shall be recorded in the official real property records of Kern County, California.

3 9. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL OIL COMPANY, INC. BERRY PETROLEUM COMPANY, a California corporation a Delaware corporation By: ____________________________ By: ___________________________ John W. Tannehill, President Jerry V. Hoffman, President and Chief Executive Officer By: ____________________________ By: ___________________________ James L. Hinkle, Secretary Kenneth A. Olson, Secretary "Assignor" "Assignee"

4 STATE OF CALIFORNIA ) ) COUNTY OF _______________) On ______________, 1996, before me, _______________, Notary Public, personally appeared John W. Tannehill, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _________________________________ STATE OF CALIFORNIA ) ) COUNTY OF ______________ ) On ______________, 1996, before me, ________________, Notary Public, personally appeared James L. Hinkle, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _________________________________ STATE OF CALIFORNIA ) ) COUNTY OF ______________ ) On ______________, 1996, before me, ________________, Notary Public, personally appeared Jerry V. Hoffman and Kenneth A. Olson, personally known to me (or proved to me on the basis of satisfactory evidence) to be the persons whose names are subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacities, and that by their signatures on the instrument the persons, or the entity upon behalf of which the persons acted, executed the instrument. WITNESS my hand and official seal. __________________________________

1 SCHEDULE A TO EXHIBIT 3 ASSIGNMENT OF RIGHTS OF WAY, EASEMENTS AND CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996 BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. (Unrecorded Documents) 1. Paved Road Maintenance Letter from Texaco to San Joaquin Valley Air Pollution Control District dated 9-23-92. 2. Oil Sales Agreement between Texaco Trading & Transportation (purchase no. 16P85) and Tannehill Oil Company dated 6-13-88. 3. Oil Sales Agreement between Koch (lease no. 20390) and Tannehill Oil Company dated 11-9-90 and Amended 2-2-96. 4. Oil Sales Agreement between Koch (lease no. 28572) and Tannehill Oil Company, 90 day contract. 5. Waste Water Disposal Agreement between Oxy U.S.A., Inc. and Tannehill Oil Company dated 6-1-90. 6. Water District Agreement No. 8 between West Kern Water District and Tannehill Oil Company dated 5-17-83. 7. Water District Agreement No. 9 between West Kern Water District and Tannehill Oil Company dated 1-13-87. 8. Easement and Right-of-Way Pipeline Agreement by and between Texaco Inc., as Grantor and Mobil Exploration and Production U.S. Inc., as Grantee dated September 5, 1990. (CAMCL02221) 9. Private Road Easement and Right-of-Way Agreement by and between Texaco Inc., as Grantor and Oxy U.S.A. Inc., as Grantee dated November 28, 1988. (CAMCLO2225) 10. Private Road Easement and Right-of-Way by and between Texaco Inc., as Grantor and Berry Petroleum Company, as Grantee dated January 3, 1989. (CAMCLO1009) 11. Private Road Easement and Right-of-Way by and between Texaco Inc., as Grantor and Berry Petroleum Company, as Grantee dated January 3, 1989. (CAMCLO1010) 12. Roadway Easement by and between Texaco Inc., as Grantor and Chevron U.S.A. Inc., as Grantee dated December 22, 1988. (CAMCLO2223) 13. Road Right-of-Way and Easement by and between Texaco Inc., as Grantor and Chalk Cliff Ltd., as Grantee dated September 8, 1988. 14. Road Maintenance Agreement between Berry Petroleum Company, as Grantor and Exxon Corporation, as Grantee dated September 8, 1988. (CAMCL01110)

2 15. Roadway Agreement by and between Texaco, as Grantor and Monarch Cogeneration, as Grantee dated April 13, 1987. 16. Pipeline Lease Agreement from Texaco Inc., as Lessor to Tannehill Oil Company, as Lessee dated June 16, 1993. 17. Road Right-of-Way for Cogeneration (from Hwy 33) between Oxy, as Grantor and Tannehill Oil Company, as Grantee dated October 15, 1984. 18. Pipeline Right-of-Way between The Texas Company (Texaco), as Grantor, and Union Oil Company of California, as Grantee dated May 15, 1953. (CAMCL02229) 19. Pipeline License Agreement between Shell Western E&P Inc., as Licensor, and Tannehill Oil Company, as Licensee dated June 9, 1993. 20. Pipeline License Agreement between Mobil Exploration & Producing U.S. Inc., as Licensor and Tannehill Oil Company, as Licensee dated May 11, 1993. (CAMCL02153) 21. Pipeline License Agreement between Shell Western E&P Inc., as Licensor and Tannehill Oil Company, as Licensee dated April 13, 1993. 22. Pipeline Easement between Oxy U.S.A. Inc., as Grantor and Tannehill Oil Company, as Grantee dated June 1, 1993. 23. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System and Berry Petroleum Company, as Operator dated July 23, 1992. (CAMCL02057) 24. Pipeline License Agreement (BDT) between Mobil Exploration & Producing U.S. Inc., South Midway BDT Service Pipeline System and Berry Petroleum Company, as Operator dated February 1, 1992. (CAMCL02057) 25. Pipeline License Agreement (BDT) between Texaco Exploration and Production Inc., and South Midway BDT Service Pipeline System, and Berry Petroleum Company, as Operator dated March 20, 1992. (CAMCL02058) 26. Pipeline License Agreement (BDT) between Fredric McCleery, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, Grantee dated March 16, 1992. (CAMCL02060) 27. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., South Midway BDT Service Pipeline System and Berry Petroleum Company dated July 23, 1992 for Nancy Snyder R-O-W dated March 11, 1992. (CAMCL01180) 28. Pipeline License Agreement (BDT) between Nancy M. Snyder, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 11, 1992. (CAMCL01180) 29. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System, and Berry Petroleum Company, Operator dated July 23, 1992 for Masonic Homes of California R-O-W dated March 13, 1992. (CAMCL02116) 30. Pipeline License Agreement (BDT) between Betsy M. Vetter, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 13, 1992. (CAMCL02116)

3 31. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System, and Berry Petroleum Company, Operator dated July 23, 1992 for Betsy M. Vetter R-O-W dated March 3, 1992. (CAMCL02117) 32. Pipeline License Agreement (BDT) between Masonic Homes of California, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 3, 1992. (CAMCL02117) 33. Pipeline License Agreement (BDT) between Oxy U.S.A. Inc, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated May 20, 1991. (CAMCL02149) 34. Pipeline License Agreement (BDT) between James F. Thacher, successor in title to John L. Bradley, as Licensor and South Midway BDT Pipeline System, as Licensee dated March 31, 1992. (CAMCL02056) 35. Pole Line Easement between Hinkle Resources, et al., as Grantor and Pacific Gas and Electric Company, as Grantee dated September 15, 1984. 36. Surface Lease Agreement between Tannehill Oil Company, as Lessor and Berry Petroleum Company, as Lessee, dated June 23, 1993. (CAMCL02151) 37. Agreement for a 6" steam line and 4" water line between Shell Western E&P Inc., as Grantor and Tannehill Oil Company, as Grantee dated May 14, 1990. 38. Letter regarding a right-of-way for a 3" water disposal line and a 6" steam line, to Mobil Exploration & Producing Inc. from Tannehill Oil Company (Russell Goff) dated April 12, 1990. (CAMCL01048) 39. Pipeline License Agreement between Mobil Exploration & Producing Inc., as Grantor and Tannehill Oil Company, as Grantee with Berry Petroleum Company's consent, dated May 29, 1990. (CAMCL01048) 40. Pipeline License Agreement between Tannehill Oil Company, as Licensor and Berry Petroleum Company, as Licensee dated August 9, 1995. (CAMCL02187) 41. Pipeline License Agreement between Berry Petroleum Company, as Grantor to Tannehill Oil Company, as Grantee dated June 23, 1993. (CAMCL02142) 42. Easement between Tannehill Oil Company, as Licensor and Mobil Exploration & Producing, Inc. as Licensee dated September 1, 1993. 43. Temporary Access Agreement between Tannehill Oil Company, as Grantor and Mobil Exploration & Producing, Inc., as Grantee dated June 27, 1991. 44. Phone Line Right-of-Way between Mobil Exploration & Production Inc., as Grantor and Tannehill Oil Company, as Grantee dated August 1993. 45. Agreement (BDT) between Solar Cogeneration, Southwest Contractors and Tannehill Oil, Dated February 1992. 46. License Agreement between Monarch Cogeneration 1986-1, as Licensor and AWAM Petroleum Inc., and Albert G. Boyce, Jr., as Licensee and Southwest Contractors, as Contractor, (unsigned draft only), dated February 19, 1993. 47. Lease Agreement between Texaco Trading & Transportation Inc., as Lessor and Tannehill Oil Company, as Lessee dated June 16, 1993.

4 48. Waste Water Pipeline R-O-W between Texaco Producing Inc., as Grantor and Chalk Cliff Cogeneration, as Grantee, not dated or signed, status unknown. (CAMCL02222) 49. Road R-O-W Agreement by and between Texaco, Inc., as Grantor and Chalk Cliff Limited, as Grantee, dated December 12, 1988. (CAMCL02224) 50. Pipeline R-O-W Agreement by and between Texaco, Inc., as Grantor and Berry Holding Company, as Grantee dated May 24, 1982. (CAMCL01139) 51. Private Road by and between Texaco, Inc., as Grantor and Exxon Corporation, as Grantee dated June 27, 1988. (CAMCL02228) 52. Pipeline R-O-W Agreement by and between Texaco, Inc., as Grantor and Berry Holding Company, as Grantee dated October 27, 1966. (CAMCL01076) 53. Pipeline Agreement by and between Texaco, Inc., as Grantor and Socony Mobil Oil Company, as Grantee dated April 28, 1965. (CAMCL02226) 54. Pole Line R-O-W by and between The Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated May 11, 1955. (CAMCL02227) 55. Power and Pole Line Agreement by and between the Texas Company, as Grantor and Pacific Gas and Electric Company, as Grantee dated August 8, 1944. (CAMCL02230) 56. Pipeline Agreement by and between the Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated January 23, 1939. (CAMCL02231) 57. Pipeline Agreement by and between The Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated November 23, 1937. (CAMCL02232) 58. Pipeline Agreement by and between The Texas Company, as Grantor and Standard Gasoline Company, as Grantee dated August 14, 1936. (CAMCL02233) 59. Water Pipeline Agreement by and between The Texas Company, as Grantor and Western Water Company, as Grantee dated January 13, 1936. (CAMCL02234) 60. Easement and Right of Way in favor of Union Oil Company. 61. Easement and Right of Way in favor of Union Oil Company. 62. Easement and Right of Way in favor of Tidewater Oil Company. 63. Easement and Right of Way in favor of Ethel D. Company. 64. A Right of Way between Albert G. Boyce, Jr., et al and Security Pacific Leasing Corporation dated August 24, 1994. 65. A Right of Way between Tannehill Oil Company and Security Pacific Leasing Corporation dated August 24, 1994. 66. An Easement between Tannehill Oil Company and Security Pacific Leasing Corporation dated August 26, 1994.

5 67. An Agreement governing the joint venture for the Kern River - Mojave Pipeline Lateral among Mobil Oil Corporation, Berry Petroleum Company, Chalk Cliff Limited and Tannehill Oil Company date December 2, 1991. 68. An Agreement governing the joint venture for the South Midway BDT Service Pipeline System among, Berry Petroleum Company, Chalk Cliff Limited and Tannehill Oil Company dated January 8, 1992. 69. An interruptible transportation agreement between Mojave Pipeline Operating Company, as transporter and Tannehill Oil Company, as shipper, Dated March 1, 1995.

1 EXHIBIT 4 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-080-48-00-8 220-080-49-00-1 220-080-50-00-3 220-080-51-00-6 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment"), dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL OIL COMPANY, INC., a California corporation ("Assignor"), whose address is 29091 Highway 33, Maricopa, California 93252, P.O. Box 98, Taft, California 93268, to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. 1. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and Tannehill Oil Company, Inc. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule A to this Assignment (hereinafter collectively called and referred to as the "Assets") and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Assets.

2 2. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. 3. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Assets conveyed hereby or intended so to be. 4. Schedule. Reference is made to Schedule A attached hereto and made a part hereof for all purposes. Reference in such Schedule A to instruments on file or recorded in the public records are made for all purposes. 5. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. 6. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 7. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. 8. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedule A that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with a complete Schedule A. Another counterpart of this Assignment with a complete Schedule A shall be recorded in the official real property records of Kern County, California.

3 9. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL OIL COMPANY, INC. BERRY PETROLEUM COMPANY, a California corporation a Delaware corporation By: ____________________________ By: ___________________________ John W. Tannehill, President Jerry V. Hoffman, President and Chief Executive Officer By: ____________________________ By: ___________________________ James L. Hinkle, Secretary Kenneth A. Olson, Secretary "Assignor" "Assignee"

4 STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On _______________, 1996, before me, _______________, Notary Public, personally appeared John W. Tannehill, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _________________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, ______________, Notary Public, personally appeared James L. Hinkle, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _________________________________

5 STATE OF CALIFORNIA ) ) COUNTY OF ______________ ) On _______________, 1996, before me, _______________, Notary Public, personally appeared Jerry V. Hoffman and Kenneth A. Olson, personally known to me (or proved to me on the basis of satisfactory evidence) to be the persons whose names are subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacities, and that by their signatures on the instrument the persons, or the entity upon behalf of which the persons acted, executed the instrument. WITNESS my hand and official seal. __________________________________

6 SCHEDULE A TO EXHIBIT 4 ASSIGNMENT OF RIGHTS OF WAY, EASEMENTS AND CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996 BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. (Recorded Documents) 1. Road Agreement between Oxy U.S.A. Inc. and Tannehill Oil Company, recorded December 27, 1988 in Book 6194, Page 1339, Official Records. 2. Road Right of Way Agreement between Oxy U.S.A. Inc. and Monarch Co-Generation 1986-1, a California limited Partnership, recorded December 27, 1988 in Book 6194, Page 1351, Official Records. 3. Grant of Easement between Masonic Homes of California, a corporation and Tannehill Oil Company, recorded March 6, 1985 in Book 5740, Page 170, Official Records. 4. Agreement for the Sale and Delivery of Oil between Monte Cristo Oil and Development Company and Standard Oil Company, recorded March 18, 1910 in Book 21, Page 139 of Agreements. 5. Memorandum of Operating Agreement between Tannehill Oil Company and Delmar R. Archibald, et al. for the production of oil and gas, recorded August 18, 1992 in Book 6715, Page 661, Official Records.

7 STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: Kern County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: Tannehill Oil Company [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T 32 S, R 24 E, Section 32; APN 220-080-48-00-8; 220-080-48-00-8; 220-080-49-00-1; 220-080-50-00-3 Amounts to: $________0_______ Amounts to: $__________0_______ (X) Unincorporated Area (X) City of ___________________ (X) Computed on full value (X) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining liens and encumbrances remaining Documentary Transfer Tax $_____0_______ Computed on full value of property conveyed Tannehill Oil Company, Inc. By: _________________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: ________________________ By: ____________________________________ Title: _________________________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

1 EXHIBIT 5 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. FORM 8594 ASSET ACQUISITION STATEMENT OMB No. 1545-1021 (Rev Jan 1996) UNDER SECTION 1060 Department of the Treasury Attachment Internal Revenue Service Sequence No. 61 Attach to your Federal income tax return Name as Shown on return Identification number as shown on return Tannehill Oil Company, Inc. 77-0291688 Check the box that identifies you Buyer (X) Seller Part 1 General Information - to be completed by all filers. 1. Name of other party to the transaction Berry Petroleum Company Other party's identification number 77-0079387 Address (number, street, and room or suite no.) 28700 Hovey Hills Road, P.O. Bin X Taft, California 93268 2. Date of Sale 3. Total sales price October 1, 1996 $930,000 Part II Assets Transferred - to be completed by all filers of an original statement 4. Assets Aggregate Fair Market Value Allocation of Sales price (Actual Amount for Class I) Class I $ $ Class II $ $ Class III $ $ 930,000 Class IV $ $ Total $ $ 930,000 5. Did the buyer and seller provide for an allocation of the sales price in the sales contract or in another written document signed by both parties? (X) Yes No If Yes, are the aggregate fair market values listed for each of asset Classes I, II, III and IV the amounts agreed upon in your sales contract or in a separate written document? (X) Yes No 6. In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to complete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes (X) No If Yes, specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. For Paperwork Reduction Act Notice, see instructions. Cat. No. 63768Z Form 8592 (Rev. 1-96) 2/19/96 Published by Tax Management Inc., a subsidiary of The Bureau of National Affairs, Inc. 8594.I

2 Form 8594 (Rev. 1-96) Page 2 Part III Supplemental Statement - To be completed only if amending an original statement or previously filed supplemental statement because of an increase or decrease in consideration N/A 7. Assets Allocation of Sales Price Increase or Redetermined Allocation as Previously Reported (Decrease) of Sales Price Class I $ $ $ Class II $ $ $ Class III $ $ $ Class IV $ $ $ Totals $ $ 8. Reason(s) for increase or decrease. Attach additional sheets if more space is needed. 9. Tax year and tax return form number with which the original form 8594 and any supplemental statements were filed.

1 FORM 8594 ASSET ACQUISITION STATEMENT OMB No. 1545-1021 (Rev Jan 1996) UNDER SECTION 1060 Department of the Treasury Attachment Internal Revenue Service Sequence No. 61 Attach to your Federal income tax return Name as Shown on return Identification number as shown on return Berry Petroleum Company 77-0079387 Check the box that identifies you (X) Buyer ( ) Seller Part 1 General Information - to be completed by all filers. 1. Name of other party to the transaction Tannehill Oil Company, Inc. Other party's identification number 77-0291688 Address (number, street, and room or suite no.) P.O. Box 98 Taft, California 93268 2. Date of Sale 3. Total sales price October 1, 1996 $930,000 Part II Assets Transferred - to be completed by all filers of an original statement 4. Assets Aggregate Fair Market Value Allocation of Sales price (Actual Amount for Class I) Class I $ $ Class II $ $ Class III $ $ 930,000 Class IV $ $ Total $ $ 930,000 5. Did the buyer and seller provide for an allocation of the sales price in the sales contract or in another written document signed by both parties? (X) Yes No If Yes, are the aggregate fair market values listed for each of asset Classes I, II, III and IV the amounts agreed upon in your sales contract or in a separate written document? (X) Yes No 6. In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to complete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes (X) No If Yes, specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. For Paperwork Reduction Act Notice, see instructions. Cat. No. 63768Z Form 8592 (Rev. 1-96) 2/19/96 Published by Tax Management Inc., a subsidiary of The Bureau of National Affairs, Inc. 8594.I

2 Form 8594 (Rev. 1-96) Page 2 Part III Class III, Intangible Amortizable Assets Only - Complete if applicable. The amounts shown below also must be included under Class III assets in Part II. Attach additional sheets if more space is needed. Assets Fair Market Value Useful Life Allocation of Sales Price $ $ None $ $ $ $ $ $ $ $ Part IV Supplemental Statement - To be completed only if amending an original statement or previously filed supplemental statement because of an increase or decrease in consideration N/A 7. Assets Allocation of Sales Price Increase or Redetermined Allocation as Previously Reported (Decrease) of Sales Price Class I $ $ $ Class II $ $ $ Class III $ $ $ Class IV $ $ $ Totals $ $ 8. Reason(s) for increase or decrease. Attach additional sheets if more space is needed. 9. Tax year and tax return form number with which the original form 8594 and any supplemental statements were filed.

1 EXHIBIT 6 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. CERTIFICATE OF SATISFACTION TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL OIL COMPANY, INC. AND BERRY PETROLEUM COMPANY ON ____________, 1996 (PARAGRAPH 2.12(e) THEREOF) The undersigned parties to that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Oil Company, Inc., to be entered into this ____ day of ____________, 1996, declare that all conditions to the Closing have been satisfied and the transaction is Closed. TANNEHILL OIL COMPANY, INC., BERRY PETROLEUM COMPANY, a California corporation a Delaware corporation By: ____________________________ By: _______________________________ John W. Tannehill, President Jerry V. Hoffman, President and Chief Executive Officer By: ____________________________ By: _______________________________ James L. Hinkle, Secretary Kenneth A. Olson, Secretary

1 EXHIBIT 7 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. FIRST AMERICAN TITLE INSURANCE COMPANY MAIN OFFICE: 4540 CALIFORNIA AVENUE, SUITE 100 (93309) MAILING ADDRESS: P.O. BOX 1945, BAKERSFIELD, CA 93303 TELEPHONE (805) 327-5311 FACSIMILE (805) 327-8533 E S C R O W I N S T R U C T I O N S FIRST AMERICAN TITLE INSURANCE COMPANY CONDUCTS ESCROW BUSINESS UNDER CERTIFICATE OF AUTHORITY NO. 2787 ISSUED BY THE STATE OF CALIFORNIA DEPARTMENT OF INSURANCE FINAL DRAFT Escrow Officer: NANCY J. SMITH Property: SECTION 32 PROPERTY AND OILFIELD EQUIP/PROD.FACILITIES, TAFT, CA Escrow Number: 1128321N Date: November 4, 1996 To:FIRST AMERICAN TITLE INSURANCE COMPANY THESE INSTRUCTIONS ARE ENTERED INTO PURSUANT TO THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED WHEN EXECUTED BY BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. A COPY OF WHICH IS ATTACHED HERETO. AS ESCROW HOLDER YOU SHALL BE CONCERNED ONLY WITH THOSE SPECIFIC PROVISIONS OF SAID CONTRACT SET FORTH AND ENUMERATED THEREIN AS FOLLOWS: #1.3, #1.11 #2.1, #2.2, #2.3, #2.6 #2.7 CLARIFICATION: DISTRIBUTION OF SALE PROCEEDS AND RECORDATION OF DOCUMENTS WITH KERN COUNTY RECORDER WILL BE HANDLED AT THE OFFICE OF ESCROW HOLDER, FIRST AMERICAN TITLE INSURANCE COMPANY, 4540 CALIFORNIA #100, BAKERSFIELD, CA. 93309. THIS ESCROW TO CLOSE CONCURRENTLY WITH ESCROWS #1128321N AND #1125444N, #2.8 AND #2.9 CLARIFICATION: PARTIES TO SUPPLY ESCROW HOLDER WITH INFORMATION SO PRORATIONS CAN BE HANDLED THROUGH ESCROW OR NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT PRORATIONS WILL BE HANDLED OUTSIDE OF THIS ESCROW; #2.11, #2.12 CLARIFICATION: DOCUMENTS TO BE DEPOSITED INTO ESCROW OR PARTIES TO NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT SAID DOCUMENTS HAVE BEEN DELIVERED OUTSIDE OF ESCROW, #2.14, ARTICLES VII AND VIII, DOCUMENTS WILL BE DEPOSITED AND APPROVED BY COUNSEL PRIOR TO CLOSE OF ESCROW. ALL PARTIES AGREE THAT TRANSFER OF SAID PROPERTY IS NOT BEING HANDLED THROUGH THE BULK SALE PROCESS. ESCROW HOLDER WILL NOT CONDUCT ANY UCC SEARCHES. NO TITLE INSURANCE OR GUARANTEES OF TITLE WILL BE ISSUED BY ESCROW HOLDER WITH REGARD TO PERSONAL PROPERTY BEING TRANSFERRED IN THIS ESCROW. A CLTA POLICY OF TITLE INSURANCE WILL BE ISSUED BY FIRST AMERICAN TITLE INSURANCE COMPANY IN THE AMOUNT AS SHOWN IN ALLOCATION FOR REAL PROPERTY AND COST FOR SAME WILL BE PAID BY TANNEHILL OIL COMPANY, INC.

2 ANY AND ALL OTHER PROVISIONS OF SAID CONTRACT NOT ENUMERATED ABOVE IMPOSE NO DUTIES ON YOU AS ESCROW HOLDER AND ARE MATTERS OF AGREEMENT AND UNDERSTANDING BETWEEN THE PARTIES WITH WHICH YOU SHALL NOT BE CONCERNED. THE ATTACHED GENERAL PROVISIONS AND PAGE #1B ARE HEREBY MADE A PART OF THESE INSTRUCTIONS. TANNEHILL OIL COMPANY, INC. BERRY PETROLEUM COMPANY BY: ________________________ BY: __________________________ ITS: _______________________ ITS: _________________________

3 ESCROW INSTRUCTIONS - PAGE 1B Escrow Number: 1128321N NOTICE OF TAX REPORTING AND WITHHOLDING OBLIGATIONS OF THE PARTIES: State Law In accordance with Sections 18805 and 26131 of the Revenue and Taxation Code, a buyer may be required to withhold an amount equal to three and one-third percent of the sales price in the case of the disposition of California real property interest by either: 1. A seller who is an individual with a last known street address outside of California or when the disbursement instructions authorize the proceeds be sent to a financial intermediary of the seller, OR 2. A corporate seller which has no permanent place of business in California. The buyer may become subject to penalty for failure to withhold an amount equal to the greater of 10 percent of the amount required to be withheld or five hundred dollars ($500). However, notwithstanding any other provision included in the California statutes referenced above, no buyer will be required to withhold any amount or be subject to penalty for failure to withhold if: 1. The sales price of the California real property conveyed does not exceed one hundred thousand dollars ($100,000), OR 2. The seller executes a written certificate, under the penalty of perjury, certifying that the seller is a resident of California, or if a corporation, has a permanent place of business in California, OR 3. The seller, who is an individual, executes a written certificate, under the penalty of perjury, that the California real property being conveyed is the seller's principal residence (as defined in Section 1034 of the Internal Revenue Code. The seller is subject to penalty for knowingly filing a fraudulent certificant for the purpose of avoiding the withholding requirement. The California statutes referenced above include provisions which authorize the Franchise Tax Board to grant reduced withholding and waivers from withholding on a case-by-cases basis. The parties to this transaction should seek an attorney's, accountant's, or other tax specialist's opinion concerning the effect of this law on this transaction and should not act on any statements made or omitted by the escrow or closing officer.

4 Federal Law: See Item #16 of General Provisions Federal 1099 Reporting for Resident Seller The parties acknowledge that First American Title has an obligation to provide information from this transaction to the Internal Revenue Service at the close of the escrow. This information includes, but is not limited to, the taxpayer identification and/or social security number(s) of the sellere(s) and the gross sales price. First American Title can not authorize the recording and closing of this transaction without receipt of information deemed adequate by First American Title for complying with the IRS reporting requirements. Failure to provide the requested information to escrow holder will result in a delay in closing. THE UNDERSIGNED HEREBY EXPRESSLY ACKNOWLEDGE RECEIPT OF THE ABOVE NOTICE. TANNEHILL OIL COMPANY, INC. BY: BERRY PETROLEUM COMPANY BY:

5 GENERAL PROVISIONS 1. Deposit of Funds and Disbursements You shall deposit all funds received in this escrow in any bank insured by an agency of the United States Government, including your affiliated bank, First American Trust Company, in one or more of your general escrow demand accounts. These funds may be transferred to any other general escrow demand account or accounts, in the above named bank or banks, including those maintained in your affiliated bank. All disbursements shall be made by your check. You are authorized not to close escrow or disburse until good funds have been confirmed in escrow. 2. Prorations and Adjustments The expression "close of escrow" used in this escrow means the date of which instruments referred to herein are recorded and related only to prorations and/or adjustments unless otherwise specified. 3. Recordation of Instruments You are authorized to record any documents delivered through this escrow, the recording of which is necessary or proper in the issuance of the requested policy of title insurance. 4. Authorization to Execute Assignment of Insurance Policies You are to execute on behalf of the parties hereto form assignments of interest in any insurance policies (other than title insurance) called for in this escrow; forward assignments and policies upon close of escrow to the agent with the request, first, that insurer consent to such transfer and/or attach a loss-payable clause and/or make such other additions or corrections as may have been specifically required herein, and second, that the agent there after forward such policies to the parties entitled to them. In all acts in this escrow relating to insurance, including adjustments, if any, you shall be fully protected in assuming that each policy is in force and that the necessary premium therefor has been paid. 5. Authorization to Furnish Copies You are to furnish a copy of these instructions, amendments thereto, closing statements and/or any other documents deposited in this escrow to the lender or lenders, the real estate broker or brokers and/or the attorney or attorneys involved in this transaction upon request of the lenders, brokers or attorneys. 6. Personal Property Taxes No examination or insurance as to the amount or payment of personal property taxes is required unless specifically requested. 7. Right of Cancellation Any party instructing you to cancel this escrow shall file notice of cancellation in your office, in writing. You shall within a reasonable time thereafter mail, by certified mail, one copy of the notice to each of the other parties at the addresses stated in this escrow. Unless written objection to cancellation is filed in your office by a party within ten (10) days after date of mailing, you are authorized at your option to comply with the notice and demand payment of your cancellation charges as provided in this agreement. If written objection is filed, you are authorized at your option to hold all money and instruments in this escrow and take no further action until otherwise directed, either by the parties' mutual written instructions, or final order of a court of competent jurisdiction.

6 8. Action in Interpleader The parties hereto expressly agree that you, as escrow holder, have the absolute right at your election to file an action in interpleader requiring the parties to answer and litigate their several claims and rights among themselves and you are authorized to deposit with the clerk of the court all documents and funds held in this escrow. In the event such action is filed, the parties jointly and severally agree to pay your cancellation charges and costs, expenses and reasonable attorney's fees which you are required to expend or incur in the interpleader action, the amount thereof to be fixed and judgment therefor to be rendered by the court. Upon the filing of the action, you shall thereupon be fully released and discharged from all obligations to further perform any duties or obligations otherwise imposed by the terms of this escrow. 9. Termination of Agency Obligations If there is no action taken on this escrow within six (6) months after the "time limit date" as set forth in the escrow instructions or written extension thereof, your agency obligation shall terminate at your option and all documents, monies or other items held by you shall be returned to the parties depositing same. If the event of cancellation of this escrow, whether it be at the request of any of the parties or otherwise, the fees and charges due First American Title Insurance Company, including expenditures incurred and/or authorized shall be borne equally by the parties hereto (unless otherwise agreed to specifically.) 10. Conflicting Instructions Should you before or after close of escrow receive or become aware of any conflicting demands or claims with respect to this escrow or the rights of any of the parties hereto, or any money or property deposited herein or affected hereby, you shall have the right to discontinue any or all further acts on your part until the conflict is resolved to your satisfaction, and you shall have the further right to commence or defend any action or proceedings for the determination of the conflict as provided in paragraphs 7 and 8 or these General Provisions. 11. Funds Retained in Escrow If for any reason funds are retained in escrow, you may deduct therefrom $10.00 as a monthly charge as custodian thereof. 12. Usury You are not to be concerned with any question of usury in any loan or encumbrances involved in the processing of the escrow and you are hereby released of any responsibility of liability therefor. 13. Indemnify for Attorneys Fees and Costs In the event suit is brought by any party to this escrow, including the title company or any other party, as against each other, or others, including the title company, claiming any right they may have as against each other or against the title company, then in that event, the parties hereto agree to indemnify and hold harmless the title company against any attorney's fees and costs incurred by it. 14. Amendments to Escrow Instructions Any Amendment or supplement to these escrow instructions must be in writing. These escrow instructions constitute the entire escrow between the escrow holder and the parties hereto.

7 15. Supplemental taxes: Seller and Buyer acknowledge that the subject property may be subject to supplemental taxes due as a result of change of ownership taking place through this escrow. Any necessary adjustment due either party on receipt of a supplemental tax bill will be made by the parties outside of this escrow and escrow holder is released of any liability in connection with same. 16. Foreign Investment in Real Property Tax Act The Foreign Investment in Real Property Tax Act of 1980 as amended by the Tax Reform Act of 1984 places special requirements for tax reporting and withholding on the parties to a real estate transaction where the transferor (seller) is a non-resident alien or non-domestic corporation or partnership or is a domestic corporation or partnership controlled by non-residents or non-resident corporations or partnerships. The parties to this transaction are seeking an attorney's, accountant's, or other tax specialist's opinion concerning the effect of this Act on this transaction and are not acting on any statements made or omitted by the escrow or closing officer. (INITIAL HERE: ___________________________) 17. Preliminary change of Ownership form: Prior to close of escrow buyer will be sent a Preliminary Change of Ownership Report, which is required by the County Recorder's office to accompany documents called for herein at the time of recording, in accordance with Section 480.3 of the Revenue and Taxation Code. Buyer is aware he must return the form completed and signed prior to the close of escrow. If escrow holder does not receive this report prior to close of escrow, buyer authorizes escrow holder to charge his account the sum of $20.00 which is the fee the County Recorder charges for recording the Deed without the completed form. Buyer is hereby put on notice that the Assessor is required to mail out the form for completion later on if it has not been filed at close of escrow. 18. Good Funds Law: The parties understand that all funds to close escrow must be deposited sufficient number of days prior to the close of escrow in order to comply with Section 12413.1 of the California Insurance Code. Generally speaking, wire transferred funds may be deposited into our escrow account any time prior to the close of escrow. Cashier's checks and certified checks must be deposited into our escrow account the business day before the close of escrow. 19. Escrow Trust Funds: Buyer and seller acknowledge that escrow holder will be depositing all funds in escrow in a NON-INTEREST bearing fiduciary account at one of the following banks: Union Bank. 20. Disclosure of Taxpayer Identification Numbers Internal Revenue Code Section 6109(h) imposes requirements for furnishing, disclosing, and including taxpayer identification numbers in tax returnes on the parties to a residential real estate transaction involving seller-provided financing. The parties understand that the disclosure reporting requirements are exclusive obligations between the parties to this transaction and that First American Title Insurance Company is not obligated to transmit the taxpayer identification numbers to the Internal Revenue Service or to the parties. First American Title Insurance Company is not rendering an opinion concerning the effect of this law on this transaction, and the parties are not acting on any statements made or omitted by the escrow or closing officer. To facilitate compliance with this law, the parties to this escrow hereby authorize First American Title Insurance Company to release any party's taxpayer identification number to any requesting party who is a party to this transaction. The requesting party shall deliver a written request to escrow. The parties hereto waive all rights of confidentiality regarding their respective taxpayer identification numbers and agree to hold First American Title Insurance Company harmless

8 against any fees, costs, or judgments incurred and/or awarded in connection with the release of taxpayer identification numbers.

1 EXHIBIT 8 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL OIL COMPANY, INC. AND BERRY PETROLEUM COMPANY ON NOVEMBER 8, 1996 (PARAGRAPH 7.6 THEREOF) The undersigned certify that Tannehill Oil Company, Inc., has complied with the matters set forth in Sections 7.1, 7.2, 7.3, and 7.4 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Oil Company, Inc., entered into on November 8, 1996. Date: ___________, 1996 TANNEHILL OIL COMPANY, INC., a California corporation By: _____________________________ John W. Tannehill, President By: _____________________________ James L. Hinkle, Secretary

1 EXHIBIT 9 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. FORM OF OPINION OF COUNSEL TO TANNEHILL OIL COMPANY, INC. ______________, 1996 Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, CA 93268 Re: Berry Petroleum Company / Tannehill Oil Company, Inc. Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Tannehill Oil Company, Inc., a California corporation ("Tannehill"), in connection with the purchase of substantially all the assets of Tannehill by Berry Petroleum Company, a Delaware corporation ("Berry"), pursuant to that certain Purchase and Sale Agreement, dated November 8, 1996, by and between Tannehill and Berry (the "Agreement"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Berry. Based on the foregoing, and in reliance thereon, but subject to the qualifications herein set forth, we are of the opinion that: 1. Tannehill is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of California and is in good standing under such laws. Tannehill has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Tannehill has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 3. All corporate action on the part of Tannehill and its directors and shareholders necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby has been taken.

2 The Agreement has been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. The individuals and entities executing the Agreement as shareholders of Tannehill are the beneficial owners of all the issued and outstanding shares of Tannehill common stock (the "Shares"). There are no outstanding options, warrants, rights of first refusal, or other rights calling for the issuance of, or any security convertible into or exchangeable for, the Shares and no other person or entity has any right in or to the Shares. 5. No consent, approval or authorization of or designation of Tannehill is required in connection with the valid execution and delivery of the Agreement, or the consummation of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 6. To our best knowledge, no default exists and no event has occurred which would constitute a default under, or violation in the due performance and observance of any term, covenant or condition, or breach of, Tannehill's Articles of Incorporation or Bylaws or any indenture, license, lease, franchise, mortgage, instrument, or other agreement to which Tannehill is a party, or by which it or its properties may be bound; or (a) an event that would permit any party to any agreement or instrument to terminate it or to accelerate the maturity of any indebtedness or other obligation of Tannehill; (b) an event that would result in the creation or imposition of any lien, charge, or encumbrance on any asset of Tannehill; or (c) an event that would conflict with any order, rule, or regulation directed to Tannehill by any court or governmental agency or body having jurisdiction over it. 7. Except as disclosed in the Tannehill Disclosure Letter (as defined in the Agreement), to our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation pending or threatened against or affecting Tannehill or any of its businesses or properties or financial or other condition. 8. Except as disclosed in the Tannehill Disclosure Letter, there are no agreements, written or oral, between Tannehill and any other party that affect, directly or indirectly, the Assets. We are members of the bar of the State of California, and accordingly we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than Federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This

3 opinion letter is addressed to Berry for the benefit of Berry and is only for Berry's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, Roger M. Coley, Esq. cc: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq.

1 EXHIBIT 10 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL OIL COMPANY, INC. AND BERRY PETROLEUM COMPANY ON NOVEMBER 8, 1996 (PARAGRAPH 8.6 THEREOF) The undersigned certify that Berry Petroleum Company has complied with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Oil Company, Inc., entered into on November 8, 1996. Date: _____________, 1996 BERRY PETROLEUM COMPANY, a Delaware corporation By: ___________________________________ Jerry V. Hoffman, President and Chief Executive Officer By: ___________________________________ Kenneth A. Olson, Secretary

1 EXHIBIT 11 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, INC. FORM OF OPINION OF COUNSEL TO BERRY PETROLEUM COMPANY __________________, 1996 Tannehill Oil Company, Inc. Attn: Mr. Albert G. Boyce, Jr. Treasurer and Chief Financial Officer 120 Manteca Avenue P.O. Box 871 Manteca, CA 95336 Re: Berry Petroleum Company / Tannehill Oil Company, Inc. Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Berry Petroleum Company, a Delaware corporation ("Berry"), in connection with the purchase of substantially all the assets of Tannehill Oil Company, Inc., a California corporation ("Tannehill"), by Berry, pursuant to that certain Purchase and Sale Agreement, dated November 8, 1996, by and between Tannehill and Berry (the "Agreement"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Tannehill. 1. Berry is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of Delaware and is in good standing under such laws. Berry has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Berry has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 3. All corporate action on the part of Berry necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby, has been taken. The Agreement has been duly executed and delivered by Berry and constitutes a legal, valid and binding obligation of Berry, enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject

2 to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. No consent, approval or authorization of or designation of Berry is required in connection with the valid execution and delivery of the Agreement by Berry, or the consummation by Berry of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 5. To our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation that is material to the transactions contemplated by this Agreement, pending or threatened against or affecting Berry or any of its businesses or properties or financial or other condition. We are members of the bar of the State of California, and except for our opinion set forth in Paragraph 1 above, we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This opinion letter is addressed to Tannehill for the benefit of Tannehill and is only for Tannehill's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, NORDMAN, CORMANY, HAIR & COMPTON cc: Roger Coley, Esq.


                   PURCHASE AND SALE AGREEMENT

                          By and Between

                   Berry Petroleum Company and

                 Tannehill Electric Company, Inc.



                      Dated November 8, 1996


TABLE OF CONTENTS Page ARTICLE I DEFINITIONS. . . . . . . . . . . . . . . . . . . . 1 1.1 "Affiliate". . . . . . . . . . . . . . . . . . . . 1 1.2 "Agreement". . . . . . . . . . . . . . . . . . . . 1 1.3 "Business Day" . . . . . . . . . . . . . . . . . . 1 1.4 "Closing". . . . . . . . . . . . . . . . . . . . . 2 1.5 "Code" . . . . . . . . . . . . . . . . . . . . . . 2 1.6 "Cogeneration Assets". . . . . . . . . . . . . . . 2 1.7 "Cogeneration Lease" . . . . . . . . . . . . . . . 2 1.8 "Cogeneration Premises Lease". . . . . . . . . . . 2 1.9 "Default". . . . . . . . . . . . . . . . . . . . . 2 1.10 "Effective Date" . . . . . . . . . . . . . . . . . 2 1.11 "Encumbrance". . . . . . . . . . . . . . . . . . . 2 1.12 "Environmental Laws" . . . . . . . . . . . . . . . 2 1.13 "Escrow" . . . . . . . . . . . . . . . . . . . . . 3 1.14 "Financial Statements" . . . . . . . . . . . . . . 3 1.15 "Governmental Entity". . . . . . . . . . . . . . . 3 1.16 "Indemnifying Party" . . . . . . . . . . . . . . . 3 1.17 "Indemnitee" . . . . . . . . . . . . . . . . . . . 3 1.18 "IRS". . . . . . . . . . . . . . . . . . . . . . . 3 1.19 "Material" . . . . . . . . . . . . . . . . . . . . 4 1.20 "Operations and Maintenance Agreement" . . . . . . 4 1.21 "P.G.&E. S. O. #2 Contract". . . . . . . . . . . . 4 1.22 "Partnership Purchase Agreement" . . . . . . . . . 4 1.23 "Permitted Encumbrances" . . . . . . . . . . . . . 4 1.24 "Person" . . . . . . . . . . . . . . . . . . . . . 4 1.25 "Requisite Regulatory Approvals" . . . . . . . . . 4 1.26 "Right to Purchase Contract" . . . . . . . . . . . 4 1.27 "Shareholders" . . . . . . . . . . . . . . . . . . 4 1.28 "SOCAL Contract" . . . . . . . . . . . . . . . . . 5 1.29 "SOCAL Litigation" . . . . . . . . . . . . . . . . 5 1.30 "TOC Purchase Agreement" . . . . . . . . . . . . . 5 ARTICLE II THE PURCHASE AND SALE. . . . . . . . . . . . . . . 5 2.1 Transfer to Berry. . . . . . . . . . . . . . . . . 5 2.2 Purchase by Berry. . . . . . . . . . . . . . . . . 5 2.3 Payment of the Purchase Price. . . . . . . . . . . 5 2.4 Operating Adjustment.. . . . . . . . . . . . . . . 6 2.5 Allocation of Purchase Price . . . . . . . . . . . 7 2.6 Closing. . . . . . . . . . . . . . . . . . . . . . 7 2.7 Proration of Credits and Payment Obligations.. . . 7 2.8 Real Estate and Other Taxes. . . . . . . . . . . . 7 2.9 Documentation of Sale and Transfer of Ownership. . 7 2.10 Closing Procedure. . . . . . . . . . . . . . . . . 8 2.11 Post Closing Access to Documents . . . . . . . . . 9 2.12 Escrow . . . . . . . . . . . . . . . . . . . . . . 9 ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL. . . . 10 3.1 Corporate Organization . . . . . . . . . . . . . . 10 3.2 Effect of Agreement; Consents. . . . . . . . . . . 10 3.3 Financial Statements . . . . . . . . . . . . . . . 10 3.4 Taxes and Tax Returns. . . . . . . . . . . . . . . 11 3.5 Absence of Adverse Change. . . . . . . . . . . . . 11 3.6 No Misleading Statements . . . . . . . . . . . . . 11 3.7 No Significant Transactions. . . . . . . . . . . . 11 3.8 Properties, Title and Related Matters. . . . . . . 12 3.9 Legal Proceedings. . . . . . . . . . . . . . . . . 13 3.10 Records. . . . . . . . . . . . . . . . . . . . . . 13 3.11 Contracts. . . . . . . . . . . . . . . . . . . . . 13 3.12 Brokerage. . . . . . . . . . . . . . . . . . . . . 14 3.13 Execution and Delivery . . . . . . . . . . . . . . 14 3.14 Environmental Matters. . . . . . . . . . . . . . . 14 3.15 Employees. . . . . . . . . . . . . . . . . . . . . 16 3.16 Investigation. . . . . . . . . . . . . . . . . . . 16 3.17 Consent of Public Utilities Commission Not Required . . . . . . . . . . . . . . . . . . 16 ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY. . . . . . 16 4.1 Corporate Organization . . . . . . . . . . . . . . 17 4.2 Due Authorization, Execution and Delivery; Effect of Agreement. . . . . . . . . . . . . . . . . . . . 17 4.3 Consents . . . . . . . . . . . . . . . . . . . . . 17 4.4 Litigation . . . . . . . . . . . . . . . . . . . . 17 4.5 Brokerage. . . . . . . . . . . . . . . . . . . . . 17 4.6 Approvals. . . . . . . . . . . . . . . . . . . . . 18 ARTICLE V COVENANTS OF TANNEHILL . . . . . . . . . . . . . . 18 5.1 Access to Tannehill. . . . . . . . . . . . . . . . 18 5.2 Governmental Approvals; Consents . . . . . . . . . 18 5.3 Litigation and Claims. . . . . . . . . . . . . . . 19 5.4 Notice of Changes. . . . . . . . . . . . . . . . . 19 5.5 Conduct of Business Operations . . . . . . . . . . 19 5.6 Maintain Cogeneration Assets and Operations. . . . 20 5.7 Exclusive Dealing. . . . . . . . . . . . . . . . . 20 5.8 Termination Fee. . . . . . . . . . . . . . . . . . 21 5.9 Maintenance of Books and Records . . . . . . . . . 22 5.10 Lease of the Cogeneration Assets and Right to Purchase. . . . . . . . . . . . . . . . 22 5.11 Taxes. . . . . . . . . . . . . . . . . . . . . . . 22 ARTICLE VI COVENANTS OF BERRY . . . . . . . . . . . . . . . . 23 6.1 Cooperation. . . . . . . . . . . . . . . . . . . . 23 6.2 Governmental Approvals . . . . . . . . . . . . . . 23 6.3 Disclosure Responsibilities. . . . . . . . . . . . 23 ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY . . . . . . . . 23 7.1 Accuracy of Representations and Warranties . . . . 23 7.2 Performance of Covenants and Agreements. . . . . . 23 7.3 Consents . . . . . . . . . . . . . . . . . . . . . 24 7.4 Governmental Approvals . . . . . . . . . . . . . . 24 7.5 Approval of Counsel. . . . . . . . . . . . . . . . 24 7.6 Officers' Certificate. . . . . . . . . . . . . . . 24 7.7 Resolutions. . . . . . . . . . . . . . . . . . . . 24 7.8 Opinions of Counsel. . . . . . . . . . . . . . . . 24 7.9 Closing of Agreements. . . . . . . . . . . . . . . 24 7.10 Termination of Operations and Maintenance Agreement. . . . . . . . . . . . . . 24 7.11 PG&E Consent . . . . . . . . . . . . . . . . . . . 24 7.12 Good Standing Certificates . . . . . . . . . . . . 25 7.13 Sunset Investment Indemnity. . . . . . . . . . . . 25 ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL. . . . . 25 8.1 Accuracy of Representations and Warranties . . . . 25 8.2 Performance of Covenants and Agreements. . . . . . 25 8.3 Resolutions. . . . . . . . . . . . . . . . . . . . 25 8.4 Approval of Counsel. . . . . . . . . . . . . . . . 25 8.5 Governmental Approvals . . . . . . . . . . . . . . 26 8.6 Officers' Certificate. . . . . . . . . . . . . . . 26 8.7 Opinion of Counsel . . . . . . . . . . . . . . . . 26 8.8 Closing of Agreements. . . . . . . . . . . . . . . 26 ARTICLE IX TERMINATION PRIOR TO CLOSING . . . . . . . . . . . 26 9.1 Termination. . . . . . . . . . . . . . . . . . . . 26 9.2 Effect on Obligations. . . . . . . . . . . . . . . 27 ARTICLE X INDEMNIFICATION. . . . . . . . . . . . . . . . . . 27 10.1 Indemnification by Berry . . . . . . . . . . . . . 27 10.2 Indemnification by Tannehill and the Shareholders. 27 10.3 Survival . . . . . . . . . . . . . . . . . . . . . 27 10.4 Notice and Opportunity to Defend . . . . . . . . . 27 10.5 General. . . . . . . . . . . . . . . . . . . . . . 29 ARTICLE XI MISCELLANEOUS. . . . . . . . . . . . . . . . . . . 29 11.1 Entire Agreement . . . . . . . . . . . . . . . . . 29 11.2 Successors and Assigns . . . . . . . . . . . . . . 29 11.3 Expenses . . . . . . . . . . . . . . . . . . . . . 29 11.4 Taking of Necessary Action . . . . . . . . . . . . 29 11.5 Invalidity . . . . . . . . . . . . . . . . . . . . 29 11.6 Attorneys' Fees. . . . . . . . . . . . . . . . . . 30 11.7 Counterparts . . . . . . . . . . . . . . . . . . . 30 11.8 Headings . . . . . . . . . . . . . . . . . . . . . 30 11.9 Construction and References. . . . . . . . . . . . 30 11.10 Modification and Waiver. . . . . . . . . . . . . . 30 11.11 Notices. . . . . . . . . . . . . . . . . . . . . . 31 11.12 Public Announcements . . . . . . . . . . . . . . . 32 11.13 Governing Law; Interpretation. . . . . . . . . . . 32 11.14 Jurisdiction . . . . . . . . . . . . . . . . . . . 32

LIST OF EXHIBITS Exhibit Number Right to Purchase Contract . . . . . . . . . . . . . . . . . . 1 Assignments of Leases, Rights of Way, Easements and Contracts . . . . . . . . . . . . . . . . . . . . . . 2A, 2B Allocation of Purchase Price . . . . . . . . . . . . . . . . . 3 Certificate of Satisfaction. . . . . . . . . . . . . . . . . . 4 Escrow Instructions. . . . . . . . . . . . . . . . . . . . . . 5 Certificate of Compliance of Tannehill . . . . . . . . . . . . 6 Opinions of Counsel to Tannehill . . . . . . . . . . . . . 7A, 7B Sunset Investment Company LLC Indemnity. . . . . . . . . . . . 8 Certificate of Compliance of Berry . . . . . . . . . . . . . . 9 Opinion of Counsel to Berry. . . . . . . . . . . . . . . . . . 10

1 PURCHASE AND SALE AGREEMENT THIS PURCHASE AND SALE AGREEMENT ("Agreement") is dated, for the convenience of the parties hereto, November 8, 1996, by and between Berry Petroleum Company, a Delaware corporation ("Berry"), and Tannehill Electric Company, Inc., a California corporation ("Tannehill"). RECITALS: A. Berry and Tannehill have determined that it is in their respective best interests for Berry to purchase from Tannehill the Cogeneration Assets (as defined in Section 1.7 hereof) for Two Hundred Thousand Dollars ($200,000) cash, upon the terms and subject to the conditions set forth herein; B. Berry and Tannehill have entered into an Agreement in Principle and Exclusive Dealing Agreement dated August 15, 1996 ("AIP"), and wish to set forth the representations, warranties, agreements and conditions under which the purchase and sale will occur in this Definitive Agreement, as defined in Section 6 of the AIP, which upon execution will supersede the AIP. NOW, THEREFORE, in consideration of the premises, representations, warranties and agreements herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Berry and Tannehill and its shareholders hereby agree as follows: ARTICLE I DEFINITIONS Capitalized terms used in this Agreement shall have the meanings given to them in this Article I, unless defined elsewhere in this Agreement. 1.1 "Affiliate" shall mean with respect to any Person, an individual or entity that, directly or indirectly, controls, is controlled by or is under common control with such Person. 1.2 "Agreement" shall have the meaning such term is given in the introductory paragraph hereof. 1.3 "Business Day" shall mean any day other than Saturday, Sunday or other days on which federally chartered commercial banks in California are authorized by law to close.

2 1.4 "Closing" shall have the meaning such term is given in Section 2.6 hereof. 1.5 "Code" shall mean the Internal Revenue Code of 1986, as amended. 1.6 "Cogeneration Assets" shall mean Tannehill's rights relative to the operational cogeneration plant described in the Disclosure Letter from Tannehill delivered to Berry at or prior to execution hereof, which shall refer to the relevant Sections of this Agreement (the "Tannehill Disclosure Letter"), and all tangible and intangible assets related to such plant, including but not limited to the P.G.&E. S. O. #2 Contract as defined in Section 1.21 hereof, the Operations and Maintenance Agreement as defined in Section 1.20 hereof, the Cogeneration Lease as defined in Section 1.7 hereof, the Cogeneration Premises Lease as defined in Section 1.8 hereof and the Right to Purchase Contract as defined in Section 1.26 hereof, excluding only the SOCAL Contract as defined in Section 1.28 hereof and the SOCAL Litigation as defined in Section 1.29 hereof. 1.7 "Cogeneration Lease" shall mean that Lease Agreement dated as of August 15, 1994, between Security Pacific Leasing Corporation, a Delaware corporation ("Security Pacific"), as lessor, and Tannehill, as lessee, a copy of which is attached to the Tannehill Disclosure Letter. 1.8 "Cogeneration Premises Lease" shall mean that Premises Lease dated as of August 15, 1994, between the persons and entities listed in Exhibit A of such Lease, collectively the "Premises Lessors," and Security Pacific, the "Premises Lessee," Security Pacific's interest in which was subleased to Tannehill pursuant to the Cogeneration Lease, a copy of which is attached to the Tannehill Disclosure Letter. 1.9 "Default" shall mean, as to any party to this Agreement, (a) a default by such party in the performance of any of its material obligations hereunder and the continuation of such default for a period of five (5) Business Days after written notice is delivered by the non-defaulting party to the defaulting party that a default has occurred or (b) the breach of any representation or warranty hereunder. 1.10 "Effective Date" shall have the meaning such term is given in paragraph 2.4a hereof. 1.11 "Encumbrance" shall mean any security interest, mortgage, pledge, claim, lien, charge, option, defect, encumbrance, or other right or interest of any nature. 1.12 "Environmental Laws" shall be broadly construed to mean any and all federal, state or local laws, statutes, ordinances, rules, regulations, orders, or determinations of any Governmental Entity pertaining to the environment heretofore or currently in effect in any and all jurisdictions in which Tannehill is conducting or at any time has conducted business, or where any of the Cogeneration Assets are located, or where any hazardous substances generated by or disposed of by Tannehill are located. "Environmental Laws" shall include, but shall not be limited to, the federal Clean Air Act, as amended; the federal Comprehensive Environmental,

3 Response, Compensation, and Liability Act of 1980 ("CERCLA"), as amended; the federal Water Pollution Control Act, as amended; the federal Resource Conservation and Recovery Act of 1976, as amended ("RCRA"); the federal Safe Drinking Water Act, as amended; the federal Toxic Substances Control Act, as amended; the federal Superfund Amendments and Reauthorization Act of 1986, as amended; the federal Clean Water Act, as amended; or any state laws or regulations similar or analogous to or in implementation of these provisions; the California State Business Plan Law, California Health and Safety Code Section 25500 et seq.; the Hazardous Substance Account Act, Health and Safety Code Section 25300 et seq.; the Hazardous Waste Control Law, Health and Safety Code Section 25100 et seq.; Chapter 6.7 of Division 20 of the Health and Safety Code, Section 25280 et seq.; the Safe Drinking Water and Toxic Enforcement Act of 1986 ("Proposition 65"); Health and Safety Code Section 25249.5 et seq.; Division 26 of the Health and Safety Code, Section 39000 et seq.; the Porter- Cologne Act, Water Code Section 13000 et seq.; and any other successor or amendments thereto, or implementing regulations thereof; and all other laws, statutes, ordinances, rules, regulations, orders and determinations of any Governmental Entity relating to (a) the control of any potential pollutant or protection of the air, water or land; (b) solid, gaseous or liquid waste generation, handling, treatment, storage, disposal or transportation; and (c) exposure to hazardous, toxic or other substances alleged to be harmful. The terms "hazardous substance," "release" and "threatened release" have the meanings specified in CERCLA, and the terms "solid waste" and "disposal" (or "disposed") have the meanings specified in RCRA; provided, however, that, to the extent the laws of the state in which any Cogeneration Assets are or were located currently or subsequently provide for a meaning for "hazardous substance," "release," "solid waste" or "disposal" which is broader than that specified in either CERCLA or RCRA, such broader meaning shall apply. 1.13 "Escrow" shall mean the escrow account established by Berry and Tannehill with First American Title Insurance Company pursuant to Section 2.12 hereof. 1.14 "Financial Statements" shall have the meaning such term is given in Section 3.3 hereof. 1.15 "Governmental Entity" shall mean the United States of America, any state, county, city, municipality and any subdivision thereof, any court, administrative or regulatory agency, commission, department or body or other governmental authority or instrumentality or any entity or Person exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 1.16 "Indemnifying Party" shall have the meaning such term is given in paragraph 10.4a hereof. 1.17 "Indemnitee" shall have the meaning such term is given in paragraph 10.4a hereof. 1.18 "IRS" shall mean the Internal Revenue Service.

4 1.19 "Material" means any condition, change or effect that, individually or when taken together with all other such conditions, changes or effects that existed or occurred prior to the date of determination of the existence or occurrence of the material condition, change or effect, is or is reasonably likely to be materially adverse to the business, assets (including intangible assets), financial condition or results of operations of Berry or Tannehill respectively, in each case taken as a whole. 1.20 "Operations and Maintenance Agreement" shall mean that agreement entitled Operations and Maintenance Agreement between Solar Turbines Incorporated ("Solar") and Tannehill dated as of August 15, 1994, as amended, a copy of which is attached to the Tannehill Disclosure Letter. 1.21 "P.G.&E. S. O. #2 Contract" refers to the California Public Utilities Commission Standard Offer #2 Power Purchase Agreement for Firm Capacity and Energy between Solar and Pacific Gas and Electric Company ("PG&E"), executed by Solar on November 14, 1985, and by PG&E on November 20, 1985, and assigned by Solar to Monarch Cogeneration 1986-1, a California limited partnership ("Monarch"), effective upon PG&E's consent thereto executed by PG&E on February 13, 1987, and further assigned by Monarch to Tannehill and Security Pacific by Consent to Assignment and Agreement dated as of August 15, 1994, and the Agreement for Installation or Allocation of Special Facilities executed by PG&E on September 17, 1986, assigned by Solar to Monarch, effective on PG&E's consent thereto executed by PG&E on February 13, 1987, and assigned by Monarch to Tannehill and Security Pacific by Consent to Assignment and Agreement dated as of August 15, 1994, copies of which documents are attached to the Tannehill Disclosure Letter. 1.22 "Partnership Purchase Agreement" shall have the meaning such term is given in paragraph 2.10c hereof. 1.23 "Permitted Encumbrances" shall mean encumbrances which Berry accepts, in writing. 1.24 "Person" shall mean any individual, corporation, association, partnership, joint venture, trust, estate, unincorporated organization or Governmental Entity. 1.25 "Requisite Regulatory Approvals" shall have the meaning such term is given in paragraph 5.2a hereof. 1.26 "Right to Purchase Contract" shall mean an agreement to be entered into between Tannehill, Berry and Security Pacific, in which Tannehill and Berry have the right to purchase Security Pacific's interest in the Cogeneration Assets under the terms and in the format of Exhibit 1 attached hereto and made a part hereof and all exhibits attached to Exhibit 1. 1.27 "Shareholders" shall mean the Shareholders of Tannehill.

5 1.28 "SOCAL Contract" shall mean that Gas Transmission Service Contract between Southern California Gas Company ("SOCAL") and Caterpillar Capital Company dated February 25, 1988, amended March 1, 1992, and assigned by Caterpillar Capital Company to Tannehill by Consent to Assignment and Agreement, dated August 19, 1994, copies of which are attached to the Tannehill Disclosure Letter. 1.29 "SOCAL Litigation" shall mean that lawsuit originally filed in the United States District Court for the Southern District of Texas, Houston Division, entitled Tannehill Electric Company, Inc., v. Southern California Gas Company, on or about July 17, 1995, Case No. H95-3752, transferred to the Central District of California and docketed in such district as Case No. CV96-2502, together with any amendments thereto and any counter-claims or cross-complaints presently or hereafter filed therein whether by SOCAL or others; that lawsuit filed October 7, 1996, in the Superior Court of the State of California for the County of Kern, entitled Tannehill Electric Company, Inc. v. Southern California Gas Company, Case No. CV96-2502, together with any amendments thereto and any cross-complaints presently or hereafter filed therein by SOCAL or others; that lawsuit filed in the Superior Court for the County of Los Angeles entitled Southern California Gas Company v. Tannehill Electric Company, Inc., Case No. BC158128, together with any amendments thereto and any cross-complaints presently or hereinafter filed by Tannehill or others; and any lawsuits presently or hereafter filed by SOCAL or its assignee against Tannehill or the Shareholders, or their successors, or Berry, based wholly or in part on the SOCAL Contract. 1.30 "TOC Purchase Agreement" shall have the meaning such terms is given in paragraph 2.10c hereof. ARTICLE II THE PURCHASE AND SALE 2.1 Transfer to Berry. In accordance with the provisions of this Agreement, Tannehill shall transfer and convey the Cogeneration Assets to Berry free and clear of liens and Encumbrances (other than Permitted Encumbrances) pursuant to Assignments of Leases, Rights of Way, Easements and Contracts in the forms of Exhibits 2A and 2B attached hereto and made a part hereof (the "Instruments of Transfer"), to be delivered at the Closing, in accordance with the provisions relating to the Closing, and Berry will acquire the Cogeneration Assets from Tannehill. 2.2 Purchase by Berry. Berry, in reliance upon the covenants, representations, warranties and indemnities of Tannehill contained herein, hereby agrees to purchase the Cogeneration Assets from Tannehill for the purchase price (the "Purchase Price") stated in Section 2.3 hereof. 2.3 Payment of the Purchase Price. As payment for the transfer and conveyance of the Cogeneration Assets by Tannehill to Berry, Berry shall deliver to Escrow for

6 the benefit of Tannehill or its nominees at the Closing, in accordance with the provisions related to the Closing, a wire transfer with immediately available funds in the amount of Two Hundred Thousand Dollars ($200,000) to an account specified by the Escrow Agent (as herein defined) prior to the Closing. The transaction shall be subject to post-closing operating adjustment as provided in Section 2.4 hereof ("Operating Adjustment"). The Operating Adjustment shall not be handled through Escrow. 2.4 Operating Adjustment. a. October 1, 1996, at 12:01 a.m. shall be considered the "Effective Date" of this Agreement, and the operations of Tannehill and the Cogeneration Assets, including income derived from the P.G.&E. S.O. #2 Contract, shall be for the account of Berry from and after that date, conducted in the ordinary course of business as described in Section 5.5 hereof; provided, however, that the application of such an Effective Date shall not be deemed to make Berry liable for any costs or charges related to the SOCAL Contract. For all other purposes, and without limiting the generality of the foregoing, the representations, warranties, covenants and indemnities herein, and the delivery of the Purchase Price, shall occur and be effective at the Closing. The Operating Adjustment will occur at or after the Closing with a cash payment in an amount equal to the net income or loss of the Cogeneration Assets after the Effective Date, adjusted to reflect only necessary operating revenues and expenses which would have been credited to or incurred by Berry had both this Agreement and the acquisition of the Cogeneration Assets under the Right to Purchase Contract been concluded and closed on the Effective Date. The operating revenues shall specifically include, but not be limited to, revenue from power and steam sales. Operating expenses shall exclude any payments made pursuant to the Cogeneration Lease or the Cogeneration Premises Lease, any SOCAL charges, legal fees, interest, amortization, unreasonable travel and entertainment and management fees in excess of Fifty Dollars ($50) per day. If the Cogeneration Assets produce a net income after the Effective Date, then Tannehill shall pay Berry an Operating Adjustment equal to such net income. If the Cogeneration Assets produce a net loss after the Effective Date, then Berry shall pay Tannehill an Operating Adjustment equal to the amount of the net loss. b. In the event Tannehill does not provide Berry with its calculation of the Operating Adjustment (the "Calculation") prior to the Closing, Tannehill shall provide Berry with the Calculation within sixty (60) days after the Closing. Berry shall have immediate access at reasonable times to such books, records and invoices as it deems necessary to verify the Calculation. If Berry does not object to the Calculation within ten (10) days after receipt thereof by Berry, it shall be deemed to be final and binding upon the parties hereto. If Berry objects to the Calculation within such ten (10) days by specifying the items to which it objects, then the parties will attempt to mutually resolve any differences. If the differences cannot be resolved within twenty (20) days after Berry's objection to the Calculation, then all amounts agreed to shall be paid as provided below and the difference shall be resolved by arbitration under the Commercial Arbitration Rules of the American Arbitration Association. The costs of arbitration shall be shared equally by the parties. This Section 2.4 is the only Section or part of this Agreement which is subject to arbitration jurisdiction.

7 c. Within three (3) days after the final determination of the Operating Adjustment, the party required to make the Operating Adjustment payment shall pay, via wire if requested, the other party the Operating Adjustment payment agreed upon. 2.5 Allocation of Purchase Price. The parties agree to allocate the Purchase Price in accordance with the terms of Code Section 1060 and the Treasury Regulations promulgated thereunder, and to report this transaction for federal and state tax purposes in accordance with the agreed-upon allocation in the form of Exhibit 3 attached hereto and made a part hereof. 2.6 Closing. Subject to the provisions of Articles VII and VIII, the closing (the "Closing") shall take place at 10 a.m., Pacific Standard Time, at the offices of Berry Petroleum Company, 28700 Hovey Hills Road, Taft, California, on such date prior to December 1, 1996, as to which Berry and Tannehill shall mutually agree. By written notice to the other party, either Berry or Tannehill shall have the right to extend the Closing an additional forty-five (45) days in the event that either party is not in a position to close by December 1, 1996. 2.7 Proration of Credits and Payment Obligations. All credits and payment obligations associated with the Cogeneration Assets, excluding the leases described in Sections 1.7 and 1.8, including but not limited to lease rentals and other forms of contractual payments, shall be prorated between Tannehill and Berry as of the Effective Date. Tannehill shall be responsible and shall pay for all such items due, incurred or attributable to the period prior to the Effective Date and Berry shall be responsible and shall pay for all such items due, incurred or attributable to the period after such date. 2.8 Real Estate and Other Taxes. All real estate, occupation, ad valorem, personal property and severance taxes and charges on the Cogeneration Assets shall be prorated as of the Effective Date. Tannehill shall pay all such items for all periods prior to such date, however, Berry shall be entitled to all refunds and rebates with regard to such periods. In the event Berry pays additional taxes or charges which are assessed upon or levied against the Cogeneration Assets after Closing with respect to any period prior to the Effective Date, Tannehill shall promptly reimburse Berry the amount thereof upon presentation of a receipt therefor. If Tannehill elects to challenge the validity of such bill or any portion thereof, Berry shall extend reasonable cooperation to Tannehill in such efforts, at no expense to Berry. 2.9 Documentation of Sale and Transfer of Ownership. Except as otherwise provided herein, the Cogeneration Assets shall be conveyed pursuant to the Instruments of Transfer in such form or forms customary and necessary to properly transfer the tangible and intangible assets included in the Cogeneration Assets according to the requirements of any applicable federal, state or local agency. a. Tannehill shall deliver control of the Cogeneration Assets to Berry at the Closing subject to the reservations, limitations, conditions and restrictions contained in this Agreement and the Instruments of Transfer.

8 b. Tannehill shall make available at Tannehill's offices or such other place as deemed appropriate by Berry until the Closing, during normal business hours, for examination by Berry, such title information and abstracts as may then be available in Tannehill's files. 2.10 Closing Procedure. At the Closing through Escrow, the transactions listed below shall occur, all subject to and conditioned upon the execution and delivery of a Certificate of Satisfaction described in paragraph 2.10e hereof. a. Tannehill shall deliver to Berry originals (unless otherwise noted) of each of the following documents: (1) Certified resolutions of the Board of Directors of Tannehill authorizing the execution and delivery of this Agreement and the transactions contemplated hereby. (2) The Cogeneration Lease, Cogeneration Premises Lease, Operations and Maintenance Agreement, P.G.&E. S.O. #2 Contract, all insurance policies presently in force with respect to the Cogeneration Assets, and all leases, contracts, agreements, indentures and other instruments described in the Tannehill Disclosure Letter. (3) Assignment of the P.G.&E. S.O. #2 Contract from Tannehill to Berry, executed by Berry and Tannehill and Consent to Assignment of the P.G.&E. S.0. #2 Contract from Tannehill to Berry, executed by Berry, Tannehill and P.G.&E. (4) Assignment of the Cogeneration Lease from Tannehill to Berry, executed by Berry and Tannehill, consented to by Security Pacific in the Right to Purchase Contract. (5) Assignment of the Cogeneration Premises Lease from the Premises Lessors to Berry, executed by Berry, Tannehill and the Premises Lessors under such Premises Lease, consented to by Security Pacific in the Right to Purchase Contract. (6) The Right to Purchase Contract, executed by Tannehill, Security Pacific and Berry. (7) Amendment and Consent to Assignment of the Operations and Maintenance Agreement as provided in Section 7.10 from Tannehill to Berry, executed by Berry, Tannehill and Solar (the "Amended Operations & Maintenance Agreement"), (which document contains a representation by Solar that Tannehill has not breached any provision of, and is not in default under, the terms of the Operations and Maintenance Agreement) and the Berry Indemnity and the Reserve Security Instruments (as those terms are defined in the Amended Operations & Maintenance Agreement). (8) Executed Instruments of Transfer.

9 (9) Executed Certificate of Compliance of Tannehill. (10) Executed Opinion of Counsel to Tannehill. (11) Tannehill Disclosure Letter. (12) Written notice from Sunset (as defined in Section 7.13) meeting the requirements of Section 7.13 hereof. b. Berry shall deliver to Tannehill originals (unless otherwise noted) of each of the following documents: (1) Certified resolutions of the Board of Directors of Berry authorizing the execution and delivery of this Agreement and the transactions contemplated hereby. (2) Executed Certificate of Compliance of Berry. (3) Executed Opinion of Counsel to Berry. (4) Berry Disclosure Letter. c. Berry and Tannehill will execute and mutually deliver two (2) originals of a statement that the respective transactions contemplated by the Purchase and Sale Agreement between Berry and Tannehill Oil Company, a general partnership, et al., dated November 8, 1996 (the "Partnership Purchase Agreement"), and the Purchase and Sale Agreement between Berry and Tannehill Oil Company, Inc., a California corporation, dated November 8, 1996 (the "TOC Purchase Agreement"), are in condition to close. d. Berry will deliver to Tannehill the Purchase Price as provided in Section 2.3 hereof. e. Berry and Tannehill will execute and mutually deliver two (2) originals of the Certificate of Satisfaction in the form of Exhibit 4 attached hereto and made a part hereof. 2.11 Post Closing Access to Documents. Tannehill will cooperate with Berry and its agents on any post-closing audit or financial review that is required by Berry due to the transactions contemplated by this Agreement. 2.12 Escrow. First American Title Insurance Company, a California corporation, whose address is 4540 California Avenue, Suite 100, P.O. Box 1945, Bakersfield, California 93309, is hereby appointed to act as escrow agent ("Escrow Agent") to conduct the purchase and sale of the Cogeneration Assets. Berry and Tannehill shall execute instructions to the Escrow Agent, substantially in the form of Exhibit 5 and attached hereto and made a part

10 hereof, to provide for the payment of liabilities secured by the Cogeneration Assets and the release of Encumbrances, other than Permitted Encumbrances, against the Cogeneration Assets. Berry and Tannehill further agree that Tannehill shall be responsible for and pay for all escrow fees and charges. ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL Except as set forth in the Tannehill Disclosure Letter, Tannehill hereby represents and warrants to and covenants with Berry as follows: 3.1 Corporate Organization. Tannehill is a corporation duly organized, validly existing and in good standing under the laws of the State of California and has full power and authority to conduct its business as currently conducted and to own, operate and lease the Cogeneration Assets it now owns, operates or holds under lease. 3.2 Effect of Agreement; Consents. a. The execution, delivery and performance of this Agreement by Tannehill and the consummation by Tannehill of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or authorization of any Person except PG&E, Security Pacific and Solar; (ii) do not violate any provision of the Articles of Incorporation or Bylaws of Tannehill; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other Governmental Entity to which Tannehill is subject or any of the Cogeneration Assets are bound; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), or the creation of any Encumbrance pursuant to, or cause or permit the acceleration prior to maturity of any amounts owing under any indenture, mortgage, deed of trust, lease or other agreement to which Tannehill is a party or to which any of the Cogeneration Assets are subject, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. b. The execution, delivery and performance of this Agreement by Tannehill will not result in the loss of any governmental license, franchise or permit possessed by Tannehill related to the Cogeneration Assets or give a right of acceleration or termination to any party to any agreement or other instrument to which Tannehill is a party and by which the Cogeneration Assets are bound, or result in the loss of any right or benefit under such agreement or instrument. 3.3 Financial Statements. Tannehill has heretofore furnished to Berry true and correct copies of the balance sheets of Tannehill as of December 31, 1995, April 30, 1996,

11 and September 30, 1996, and the related statements of revenues and expenses for the periods then ended (collectively, the "Financial Statements"). The Financial Statements have been prepared in accordance with the books and records of Tannehill and in conformity with generally accepted accounting principles applied, except as otherwise noted therein, on a basis consistent with prior periods, and fairly present, in all material respects, the financial position and results of operations of Tannehill as at and for the periods specified therein. As of September 30, 1996, Tannehill did not have any liability of any kind or manner, either direct, accrued, absolute or otherwise, which was required to be disclosed by generally accepted accounting principles and which was not reflected or disclosed in the Financial Statements and there have been no changes in Tannehill's method of accounting for tax purposes or other purposes except as disclosed in the Tannehill Disclosure Letter. 3.4 Taxes and Tax Returns. Tannehill has filed all federal, state, local and foreign income and other tax returns required to be filed by it, and each such return is complete and accurate in all material respects. The taxes shown due on such returns have been paid and there are no taxes, interest, penalties, assessments or deficiencies (any of the foregoing being referred to herein as a "Tax") claimed to be due in respect of such tax returns or claimed in writing to be due by any taxing authority. The tax returns of Tannehill have not been audited by the IRS, nor has Tannehill received notice of any examination being conducted by the IRS or any other taxing authority for any fiscal year. All other taxes, including property taxes, imposed by the United States and by any state, municipality, subdivision or instrumentality of the United States, or other taxing authority, which are due and payable by Tannehill have been paid in full or will be paid or provided for up to the Closing date. 3.5 Absence of Adverse Change. Since April 30, 1996, there has not been (a) any Material adverse change in the condition of the Cogeneration Assets; (b) any damage, destruction or loss adversely affecting the Cogeneration Assets; (c) any incurrence by Tannehill or by the Shareholders of or entry into any liability, mortgage, lien or transaction affecting the Cogeneration Assets; (d) any guarantee of or grant of a security interest to secure a third Person's obligations by Tannehill; (e) except as provided in the Tannehill Disclosure Letter, any commitment by Tannehill relating to the Cogeneration Assets; or (f) any agreement, in writing or otherwise, or any corporate action with respect to the foregoing. No event or condition has occurred or exists and Tannehill is not aware of any event or condition that has occurred or exists and that could result in a Material adverse change in the Cogeneration Assets since April 30, 1996. 3.6 No Misleading Statements. This Agreement, the exhibits hereto and the information referred to herein, when taken as a whole, do not include any untrue statement of a material fact and do not omit any material fact necessary to make the statements contained herein or therein not misleading. 3.7 No Significant Transactions. Except for the execution of this Agreement, since December 31, 1995, Tannehill has not engaged in any Material transactions and will not engage in any Material transactions prior to the Closing.

12 3.8 Properties, Title and Related Matters. a. Tannehill's interest, as Lessee of the Cogeneration Lease, in the personal property and fixtures included in the Cogeneration Assets and the personal property and fixtures included in the Cogeneration Lease is free and clear of all Encumbrances except for Permitted Encumbrances. Tannehill has not breached any provision of and is not in default (and no event or circumstance exists that written notice or the lapse of time, or both, would constitute a default) under the terms of the Cogeneration Lease. b. Other than Tannehill's interest, as sublessee of the Cogeneration Premises Lease, in the real property upon which the Cogeneration Assets are located (the "Cogeneration Premises"), Tannehill has no easements or rights of way and no real property is leased by Tannehill. Tannehill has good title to all the leasehold estates pursuant to which the real property described in the previous sentence is leased, free and clear of all Encumbrances, except for Permitted Encumbrances. Except as described in the Tannehill Disclosure Letter, Tannehill has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any lease, easement, right of way or other agreement pursuant to which the Cogeneration Premises are leased or held and all of such leases, easements, rights of way or other agreements are in full force and effect. There are no pending or threatened disputes with respect to any lease, easement, right of way or other agreement pursuant to which the Cogeneration Premises are leased or held and the lessor or grantor thereunder has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any such lease, easement, right of way or other agreement. The Tannehill Disclosure Letter contains a description of all structures, improvements, tanks and pipes or other fixtures located on or under any leases, easements or rights of way included in or affecting the Cogeneration Premises. c. Since the physical inspection by Berry on September 5, 1996, the maintenance and operation of the machinery and equipment of the Cogeneration Assets listed in the Tannehill Disclosure Letter have been consistent with the past maintenance and operation of such machinery and equipment, ordinary wear and tear excepted, and, except as described in the Tannehill Disclosure Letter, all machinery, pipelines and equipment are operative in all material respects. d. Tannehill is not in material violation of and, except as disclosed in the Tannehill Disclosure Letter, Tannehill has not received any written notice of any violation of any zoning regulation, ordinance, law, rule, order, regulation or requirement relating to the Cogeneration Assets, or operation of or on its properties which remains uncured or which has not been dismissed where failure to comply therewith would have a Material adverse effect on Tannehill or the Cogeneration Assets. e. Attached to the Tannehill Disclosure Letter is a correct and complete list and copies of all policies of fire, liability and other forms of insurance held by

13 Tannehill presently in force with respect to the Cogeneration Assets. Such policies are in full force and effect and assignable and Tannehill is not in default under any of them. f. The Operations and Maintenance Agreement shall be subject to cancellation by Berry after the Closing without any requirement for the posting of a letter of credit or any other penalty other than an acceptable period of time to elapse for notice, except as such requirement may relate to the required Adjustment of Capacity Payments in the event of termination or reduction as required by the P.G.&E. S.O. #2 Contract. 3.9 Legal Proceedings. Except as disclosed in the Tannehill Disclosure Letter, there is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending or threatened against Tannehill or any director or officer of Tannehill, or affecting any of the Cogeneration Assets, which if adversely determined would have a Material adverse effect on the Cogeneration Assets. Tannehill is not in violation of or default under any laws, ordinances, regulations, judgments, injunctions, orders or decrees (including, without limitation, any immigration laws or regulations) of any court or other Governmental Entity applicable to its business, which violations or defaults would have a Material adverse effect on the business, results of operations, financial condition,Cogeneration Assets or prospects of Tannehill. There are no Material judgments, orders, injunctions or decrees of any Governmental Entity regarding any agreement in which Tannehill is a named party or any of the Cogeneration Assets are identified or subject. Except for the SOCAL Litigation, there is no pending litigation in or to which Tannehill is a named party or any of the Cogeneration Assets of Tannehill are identified and subject. 3.10 Records. Tannehill has records that accurately reflect its transactions and transactions that affect the Cogeneration Assets in all material respects. 3.11 Contracts. a. All contracts, agreements, indentures and other instruments to which Tannehill is a party are attached to the Tannehill Disclosure Letter. Except for the agreements attached to the Tannehill Disclosure Letter, Tannehill is not a party to or bound by (i) any agreement, indenture or other instrument which contains restrictions with respect to the sale of the Cogeneration Assets; (ii) any contract, agreement, indenture, note or other instrument relating to (A) the granting of any Material Encumbrance or (B) any guarantee or other contingent liability (identifying the primary contract or agreement to which such guarantee or contingent liability relates or the agreement pursuant to which such guarantee was delivered) affecting or in respect of the Cogeneration Assets; (iii) any management service, consulting or any other similar type of contract; (iv) any other agreement, contract or commitment limiting the freedom of Tannehill or any Affiliate of Tannehill to engage in any line of business, to own, operate, sell, transfer, pledge or otherwise dispose of or encumber any Asset or to compete with any Person or in any geographic area; or (v) any other agreement, contract or commitment which relates to the Cogeneration Assets. The Tannehill Disclosure Letter sets forth with respect to each mortgage, security agreement, letter of credit or guaranty, a cross reference to the principal agreement, instrument or document referred to in the Tannehill Disclosure Letter

14 pursuant to which such mortgage, security agreement, letter of credit or guaranty was executed or to which such mortgage, security agreement, letter of credit or guaranty relates. b. Except as disclosed in the Tannehill Disclosure Letter, Tannehill has not breached any provision of or is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any agreement attached to the Tannehill Disclosure Letter. All contracts, agreements, indentures and other instruments attached to the Tannehill Disclosure Letter are in full force and effect. There are no pending or threatened disputes with respect to the contracts, agreements, indentures or instruments attached to the Tannehill Disclosure Letter. Tannehill is not obligated to pay any liquidated damages under any of the contracts, agreements, indentures or other instruments attached to the Tannehill Disclosure Letter and Tannehill is not aware of any facts or circumstances that could reasonably be expected to result in an obligation of Tannehill to pay such liquidated damages. 3.12 Brokerage. No investment banker, broker or finder has acted directly or indirectly for Tannehill in connection with this Agreement or the transactions contemplated hereby. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect thereof based in any way on agreements, arrangements or understandings made by or on behalf of Tannehill. Tannehill agrees to indemnify, defend and hold Berry harmless from and against any and all claims, liabilities or obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Tannehill with respect to any such fee, expense or commission. 3.13 Execution and Delivery. Tannehill has full power and authority to execute and deliver this Agreement and to perform its obligations hereunder. The execution and delivery of this Agreement by Tannehill and the performance of its obligations hereunder have been duly authorized by all necessary corporate action on its part, including unanimous approval by the Shareholders. This Agreement has been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 3.14 Environmental Matters. a. To the best of Tannehill's knowledge, Tannehill has at all times operated in compliance with all applicable limitations, restrictions, conditions, standards, prohibitions, requirements and obligations of Environmental Laws and related orders of any court or other Governmental Entity. b. To the best of Tannehill's knowledge, Tannehill is not in violation of or subject to (i) any existing, pending or threatened action, suit, investigation, inquiry or

15 proceeding by or before any court or other Governmental Entity or (ii) any remedial obligations, in each case under any applicable Environmental Law relating to the Cogeneration Assets or operations conducted thereon by any Person at any time during which such Cogeneration Assets were owned, leased, used or operated by or for the benefit of Tannehill, or by any Person prior to such time to the extent Tannehill has knowledge of such matters. c. To the best of Tannehill's knowledge, all notices, permits, licenses or similar authorizations, if any, required to be obtained or filed by Tannehill under all applicable Environmental Laws in connection with its past or present operation or use of any and all Cogeneration Assets or the conduct of its business, including but not limited to past or present treatment, storage, disposal or release of a hazardous substance or solid waste into the environment, have been duly obtained or filed. d. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Cogeneration Assets or by any Person in connection with the ownership, lease, use or operation of the Cogeneration Assets have, at any time during which such Cogeneration Assets were owned, leased, used or operated by or for the benefit of Tannehill or any Affiliate thereof, been transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws. e. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Cogeneration Assets or by any prior owner or operator of the Cogeneration Assets were transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws. f. To the best of Tannehill's knowledge, no Person has, at any time during which the Cogeneration Assets were owned, leased, used or operated by or for the benefit of Tannehill, disposed of or released any hazardous substance or solid waste on or under the Cogeneration Assets, except in compliance with all applicable Environmental Laws. g. To the best of Tannehill's knowledge, no Person has disposed of or released any hazardous substance or solid waste on, under or around the Cogeneration Assets, except in compliance with all applicable Environmental Laws. h. To the best of Tannehill's knowledge, no facts or circumstances exist which could reasonably be expected to result in any liability to any Person with respect to the current or past business and operations of Tannehill or the Cogeneration Assets in connection with any release, transportation or disposal of any hazardous substance or solid waste or action taken or omitted that was not in full compliance with or was in violation of any applicable Environmental Law.

16 3.15 Employees. a. Tannehill has no employees. b. Officers of Tannehill shall not assert claims against Berry based on employment by Tannehill for severance, retirement benefits, health benefits, deferred compensation, violations of any federal, state or local laws or statutes, wages or other benefits or compensation. Officers of Tannehill shall not assert any claim against Berry for discriminatory hiring practices based on state or federal laws or statutes, union contracts or for benefits based upon the Employee Retirement Income Security Act of 1974, as Amended ("ERISA"). c. Tannehill is not currently nor has it ever been a party to any officer or employee pension or welfare plan to which ERISA applies or to which Tannehill was required to make contributions for the benefit of its employees, officers or directors. d. Neither Tannehill nor any of its Affiliates is a party to, or bound by, any collective bargaining agreement, contract or other agreement or understanding with a labor union or labor union organization. There is no unfair labor practice or labor arbitration proceeding pending or threatened against Tannehill or any of its Affiliates relating to their business which, if determined adversely to Tannehill or the Affiliate would have a Material adverse effect. There are no organizational efforts with respect to the formation of a collective bargaining unit presently being made or threatened involving Tannehill or any of its Affiliates. 3.16 Investigation. Tannehill and its agents, counsel and accountants have had reasonable access to representatives of Berry to make such investigations as they desired with respect to the business, operations and affairs of Berry in connection with the transactions contemplated hereby. In determining whether to consummate the transactions contemplated hereby, Tannehill is relying solely on the terms, covenants, representations, warranties and indemnities herein and on their own investigations into and analysis of the business, operations and condition (financial or otherwise) of Berry and have not relied on Berry, or its officers or directors, with respect to the interpretation of data relating to the valuation of Tannehill, the income tax ramifications of this purchase and sale, and/or the ability of Berry to operate the Cogeneration Assets. 3.17 Consent of Public Utilities Commission Not Required. The consent of the California Public Utilities Commission to the transfer of the P.G.&E. S.O. #2 Contract from Tannehill to Berry is not required. ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY Except as set forth in the Disclosure Letter from Berry delivered to Tannehill at or prior to the execution hereof, which shall refer to the relevant Sections of this Agreement (the

17 "Berry Disclosure Letter"), Berry hereby represents and warrants to and covenants with Tannehill as follows: 4.1 Corporate Organization. Berry is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware and has all requisite corporate power and authority to carry on its business as it is now being conducted, and to execute, deliver and perform this Agreement and to consummate the transactions contemplated hereby. 4.2 Due Authorization, Execution and Delivery; Effect of Agreement. The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby have been duly authorized by all necessary corporate action on the part of Berry. This Agreement has been duly and validly executed and delivered by Berry and constitutes the legal, valid and binding obligation of Berry, enforceable against it in accordance with its terms, except to the extent that such enforceability (a) may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally; and (b) is subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or authorization of any Person, except as otherwise disclosed in the Berry Disclosure Letter; (ii) do not violate any provision of the Certificate of Incorporation or Bylaws of Berry; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other Governmental Entity to which Berry is subject; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), or the creation of an Encumbrance pursuant to, or cause or permit the acceleration prior to maturity of any amounts owing under, any indenture, mortgage, deed of trust, lease, or other agreement to which Berry is a party, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. 4.3 Consents. Except as otherwise disclosed in the Berry Disclosure Letter, no consent, approval or authorization of, or exemption by, or filing with, any Governmental Entity or any Person is required in connection with the execution, delivery or performance by Berry of this Agreement or the taking of any other action contemplated hereby. 4.4 Litigation. There is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending against Berry, or threatened against Berry, which seeks to enjoin or obtain damages in respect of the consummation of the transactions contemplated hereby. 4.5 Brokerage. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect of this Agreement or the transactions contemplated hereby based in any way on agreements, arrangements or

18 understandings made by or on behalf of Berry. Berry agrees to indemnify and hold Tannehill and the Partners harmless from and against any and all claims, liabilities or obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Berry with respect to any such fee, commission or expense. 4.6 Approvals. No approval of the stockholders of Berry is necessary or required under the Delaware General Corporation Law, as currently in effect, or Berry's Certificate of Incorporation or Bylaws for the consummation of the transactions contemplated by this Agreement. ARTICLE V COVENANTS OF TANNEHILL From and after the date of this Agreement until the Closing, except as expressly authorized by this Agreement or expressly consented to in writing by Berry, Tannehill covenants and agrees with Berry as follows: 5.1 Access to Tannehill. Tannehill shall afford to Berry and to the employees, agents, lenders, investors and authorized representatives of Berry and to their respective counsel and accountants such reasonable access to the Cogeneration Assets, officers, offices, equipment, files, agreements, documents, and books and records of Tannehill (including, without limitation, engineering data and information, computer programs, tapes and other records), and the opportunity to make notes, abstracts and copies therefrom, as may be requested by Berry in order that Berry may have full opportunity to make such reasonable investigations as it shall desire with respect to the business, operations, Cogeneration Assets and affairs of Tannehill in connection with the transactions contemplated hereby and Tannehill shall furnish Berry with such additional financial and operating data and other information as to the business, operations and Cogeneration Assets of Tannehill as Berry shall, from time to time, reasonably request for such purpose. Berry hereby releases Tannehill from all liability arising out of the entry by Berry or its employees, agents, lenders, investors or authorized representatives onto the business premises of Tannehill for purposes of conducting the investigation contemplated by this Section 5.1. Berry hereby agrees to indemnify, defend and hold harmless Tannehill against all liability, demands, claims, costs, losses, damages, recoveries, settlements and expenses incurred by Tannehill arising from or related to the conduct by Berry or its employees, agents, lenders, investors or authorized representatives of the investigation. 5.2 Governmental Approvals; Consents. a. Tannehill shall use its best efforts, and shall cooperate with Berry, to obtain all permits, approvals and consents, and to make all filings, necessary or required to be obtained or made, and to begin and cause all waiting periods required to lapse, for Berry to have full use and enjoyment of the Cogeneration Assets subsequent to the purchase and sale and

19 for the consummation by Tannehill of the transactions contemplated by this Agreement under any applicable federal law or the applicable laws of any state having jurisdiction over the transactions contemplated hereby (all such permits, approvals, filings and consents and the lapse of all such waiting periods being referred to as the "Requisite Regulatory Approvals"). b. Tannehill shall use its best efforts to obtain all consents, approvals, clearances, waivers, orders or authorizations of any Person necessary to be obtained by Tannehill for Berry to have full use and enjoyment of the Cogeneration Assets subsequent to the purchase and sale and for the consummation of the transactions by Tannehill contemplated by this Agreement. 5.3 Litigation and Claims. Tannehill shall promptly inform Berry in writing of any litigation, or of any claim or controversy or contingent liability of which Tannehill becomes aware that might reasonably be expected to become the subject of litigation, against Tannehill or affecting any of the Cogeneration Assets. 5.4 Notice of Changes. Tannehill shall promptly inform Berry in writing if Tannehill becomes aware of any change that shall have occurred or that shall have been threatened (or any development that shall have occurred or that shall have been threatened involving a prospective change) in the financial condition, results of operations, business of the Cogeneration Assets or of Tannehill that is or with the exercise of reasonable business judgment would be expected to have an adverse effect on the Cogeneration Assets. Tannehill shall promptly inform Berry in writing if any representation or warranty made by Tannehill in this Agreement shall cease to be accurate or upon the occurrence of any breach of any covenant or other agreement required by this Agreement to be performed or complied with by Tannehill. 5.5 Conduct of Business Operations. Tannehill shall not, without the prior written consent of Berry: a. Except as a result of damages to the Cogeneration Assets as a result of a force majeure, fail to use its best efforts to operate the Cogeneration Assets in the same manner as they have been historically operated and Tannehill shall avoid experiencing a loss in electrical generation output below 14.2 megawatts per day, except for reductions due to scheduled maintenance. b. Other than in the ordinary course of business, sell, lease or otherwise dispose of any Cogeneration Assets or any interests therein, or enter into, or consent to the entering into of, any agreement granting to any third Person a right to purchase, lease or otherwise acquire any Cogeneration Assets or interests therein, except as otherwise provided for in this Agreement; c. Enter into any agreement or incur any obligation, the terms of which would be violated by the consummation of the transactions contemplated by this Agreement;

20 d. (i) Enter into any new line of business with respect to the Cogeneration Assets; (ii) change its investment, liability management and other material policies in any respect; (iii) incur or commit to any capital expenditures or financing relative to the Cogeneration Assets; (iv) otherwise acquire or agree to acquire any assets for a total consideration in the aggregate in excess of Five Thousand Dollars ($5,000); or (v) waive any right under or cancel any contract, debt or claim listed in any exhibits hereto or the Tannehill Disclosure Letter, which waiver or cancellation would have an adverse effect on the Cogeneration Assets; e. Maintain books of account relative to the Cogeneration Assets other than in the usual, regular and ordinary manner in accordance with good business practices or make any change in any of its accounting methods or practices; or f. Take any action that would or might reasonably be expected to result in any of the conditions to Closing set forth in Article VII hereof not being satisfied. 5.6 Maintain Cogeneration Assets and Operations. Except for entering into the Right to Purchase Contract for acquisition of the Cogeneration Assets as provided in Sections 1.26 and 5.10 hereof, during the period from the date hereof through the Closing, Tannehill shall (a) carry on its business in the usual, regular and ordinary course in a good and diligent manner consistent with sound business practices and in compliance with all applicable laws, rules and regulations; (b) not introduce any new method of management or operation; (c) use its best efforts to preserve its business organization, maintain its rights and franchises, keep available the services of its officers and employees and preserve the goodwill and its relationships with customers, suppliers and others having business dealings with it; (d) preserve in full force and effect all leases, operating agreements, easements, rights of way, permits, licenses, contracts and other agreements which relate to the Cogeneration Assets (other than those expiring by their terms); (e) use its best efforts to perform or cause to be performed all of its obligations in or under any of such leases, agreements and contracts to be transferred as part of the Cogeneration Assets; (f) use its best efforts to safeguard and maintain secure all reports and other confidential data in the possession of Tannehill relating to the Cogeneration Assets; and (g) use its best efforts to operate its business and activities in the same manner as they have been carried out and to maintain the same level of expenditure as have previously been incurred in connection with such business and activities. 5.7 Exclusive Dealing. Tannehill shall not directly or indirectly, through any representative or otherwise, solicit or entertain offers from, negotiate with or in any manner encourage, discuss, accept or consider any proposal of any Person relating to the acquisition of the assets or business, in whole or in part of Tannehill, whether through direct purchase, consolidation or other business combination (other than sales of inventory or in the ordinary course of business) so long as this Agreement has not been terminated. Tannehill recognizes that Berry has and continues to incur substantial time and expense in evaluating this transaction. Tannehill acknowledges that Berry, in reliance on this Section 5.7, will continue to incur additional time, effort and expense. Tannehill has agreed to this provision due to the unique terms specified in the AIP and contemplated in this transaction.

21 5.8 Termination Fee. In the event that Tannehill breaches Section 5.7 hereof and within twelve (12) months after such breach or termination, Tannehill closes a transaction with an unrelated third party relating to the acquisition of a Material portion of the Cogeneration Assets or the business of Tannehill, in whole or part, whether through direct purchase, merger, consolidation or other business combination (other than sales of inventory or immaterial portions of Tannehill's Cogeneration Assets in the ordinary course), then, immediately upon such closing, Tannehill shall pay to Berry the sum of Twenty Thousand Dollars ($20,000). Such payment shall constitute liquidated damages and, in the absence of fraud or bad faith, shall be in lieu of any other penalty or remedy Berry might otherwise seek, the parties having determined that the

22 actual damages resulting from the events for which such liquidated damages are to be awarded would be extremely difficult and uncertain to calculate and that liquidated damages above represent a good faith estimate of such actual damages. ___________ __________ Tannehill initials Berry initials ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ Shareholders' initials 5.9 Maintenance of Books and Records. Tannehill will possess and maintain the complete books and records of the Cogeneration Assets. 5.10 Lease of the Cogeneration Assets and Right to Purchase. At the Closing, Tannehill will hold the lessee's interest in the Cogeneration Lease and the right to purchase the Cogeneration Assets from Security Pacific, free of debt or encumbrances, including without limitation the following executed agreements, assignments and consents: (a) Cogeneration Lease Assignment; (b) Assignment and Consent to Assignment by PG&E of the P.G.&E. S.O. #2 Contract from Tannehill to Berry, without modification; (c) Assignment and Consent to Assignment by Solar of the Operations and Maintenance Agreement from Tannehill to Berry, modified as provided in Section 7.10 hereof; (d) Certificates of Non-default effective at the Closing as to Solar; (e) to the extent available through the best efforts of Tannehill, all books, data sheets, logs, maintenance manuals and other records relating to the Cogeneration Assets from the date of its construction to the Closing; (f) to the extent available through the best efforts of Tannehill, originals or copies of all insurance policies issued to Monarch, Solar or Tannehill covering or relating to the Cogeneration Assets from the date of its construction to the Closing; and (g) executed Right to Purchase Contract. 5.11 Taxes. Tannehill shall pay any documentary transfer, sales or use taxes that may become due on the purchase and sale of the Cogeneration Assets under the terms of this Agreement and/or the purchase of Security Pacific's interest in the Cogeneration Assets under the Right to Purchase Contract, plus any penalty or interest thereon.

23 ARTICLE VI COVENANTS OF BERRY Berry hereby covenants and agrees with Tannehill as follows: 6.1 Cooperation. Subject to the terms and conditions of this Agreement, Berry shall cooperate with Tannehill to use its best efforts to secure all necessary consents, approvals, authorizations, exemptions and waivers from all Persons and Governmental Entities as shall be required to be obtained by Berry in order to enable Berry to consummate the transactions contemplated hereby; provided, however, that under no circumstances shall Berry be required to pay any money or obligate itself to such a person beyond the terms of this Agreement. 6.2 Governmental Approvals. Berry shall use its best efforts, and shall cooperate with Tannehill, to obtain all Requisite Regulatory Approvals. 6.3 Disclosure Responsibilities. Berry, as a reporting company under Section 12 of the Securities Exchange Act of 1934, as amended ("Exchange Act"), and listed company under the New York Stock Exchange (the "NYSE"), is required to comply with certain disclosure requirements regarding its business activities, including, but not limited to, the issuance of press releases and the preparation and filing of periodic reports with the Securities and Exchange Commission. In order to comply with the disclosure requirements of the Exchange Act and NYSE, as well as the timing of such disclosures, all statements to the public, including press releases, shall be at the sole discretion of Berry. ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY The obligations of Berry to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Berry) on or prior to the Closing of all of the following conditions: 7.1 Accuracy of Representations and Warranties. The representations and warranties of Tannehill set forth in this Agreement shall be true and correct in all respects as of the date when made and at and as of the Closing. 7.2 Performance of Covenants and Agreements. Tannehill shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by it prior to or at the Closing. None of the events or conditions entitling Berry to terminate this Agreement under Article IX hereof shall have occurred and be continuing.

24 7.3 Consents. Any consent required for the consummation of this purchase and sale under any agreement, contract, license or other instrument described in any exhibit hereto or referred to herein, or for the continued enjoyment by Berry of any benefits of such agreement, contract, license or other instrument after the Closing, which consent Tannehill is specifically obligated to obtain pursuant to this Agreement, shall have been obtained and be effective. 7.4 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect. 7.5 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Nordman, Cormany, Hair & Compton, counsel to Berry. 7.6 Officers' Certificate. Berry shall have received a certificate of Tannehill, substantially in the form of Exhibit 6 attached hereto and made a part hereof, satisfactory in form and substance to Berry, executed on behalf of Tannehill by its President and Secretary, as to compliance with the matters set forth in Sections 7.1, 7.2, 7.3 and 7.4 of this Agreement. 7.7 Resolutions. Berry shall have received certified copies of resolutions of the Board of Directors of Tannehill and the written consents of the Shareholders owning one hundred percent (100%) of the outstanding shares of common stock of Tannehill approving this Agreement, and the transactions contemplated hereby. 7.8 Opinions of Counsel. Berry shall have received the opinions of Roger Coley and William Alexander, counsel to Tannehill and the Shareholders, in form and content satisfactory to Berry, substantially in the form of Exhibit 7 attached hereto and made a part hereof. 7.9 Closing of Agreements. The Closing shall not occur unless the Closings contemplated by the Partnership Purchase Agreement and the TOC Purchase Agreement have occurred or will occur concurrently with the Closing. 7.10 Termination of Operations and Maintenance Agreement. The Operations and Maintenance Agreement shall be modified to provide that it is subject to cancellation by Berry after the Closing without any requirement for the posting of a letter of credit or any other penalty other than an acceptable period of time to elapse for notice, except as such requirement may relate to the Required Adjustment of Capacity Payments in the event of termination as required by the P.G.&E. S.O. #2 Contract. Berry shall have received the duly executed Amended Operations & Maintenance Agreement, the Berry Indemnity and the Reserve Security Instruments (as those terms are defined in the Amended Operations & Maintenance Agreement). 7.11 PG&E Consent. PG&E will have consented to the transfer of the P.G.&E. S.O. #2 Contract from Tannehill to Berry without amendment to such contract.

25 7.12 Good Standing Certificates. Tannehill shall have delivered valid Good Standing Certificates from the Secretary of the State of California and the California Franchise Tax Board showing Tannehill in good standing. 7.13 Sunset Investment Indemnity. Berry shall have received an indemnity from Sunset Investment Company, LLC, a California limited liability company ("Sunset"), in form and content satisfactory to Berry substantially in the form of Exhibit 8 attached hereto and made a part hereof. Berry shall also have received written confirmation from Sunset in a form acceptable to Berry that Sunset has established a reserve fund, in an amount of not less than Five Million Dollars ($5,000,000) to be held for the benefit of Berry (and others) to indemnify Berry (and others) from and against any and all costs, claims, judgments, settlements and liabilities arising out of the SOCAL Contract and the SOCAL Litigation and that all terms and conditions of the Amended Operations & Maintenance Agreement by and among Berry, Tannehill and other parties, have been satisfied. 7.14 Tannehill shall have delivered the duly executed Right to Purchase Contract. ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL The obligations of Tannehill to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Tannehill) on or prior to the Closing of all of the following conditions: 8.1 Accuracy of Representations and Warranties. The representations and warranties of Berry set forth in this Agreement shall be true and correct in all material respects as of the date when made and at and as of the Closing. 8.2 Performance of Covenants and Agreements. Berry shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by it prior to or at the Closing. None of the events or conditions entitling Tannehill to terminate this Agreement under Article IX hereof shall have occurred and be continuing. 8.3 Resolutions. Tannehill shall have received certified copies of resolutions of the Board of Directors of Berry approving this Agreement and the transactions contemplated hereby. 8.4 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Roger Coley, counsel to Tannehill and the Shareholders.

26 8.5 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect. 8.6 Officers' Certificate. Tannehill shall have received a certificate of Berry, substantially in the form of Exhibit 9 attached hereto and made a part hereof, satisfactory in form and substance to Tannehill, executed on behalf of Berry by the President and Secretary of Berry, as to compliance with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of this Agreement. 8.7 Opinion of Counsel. Tannehill shall have received the opinion of Nordman, Cormany, Hair & Compton, counsel to Berry, in form and content reasonably satisfactory to Tannehill, substantially in the form of Exhibit 10 attached hereto and made a part hereof. 8.8 Closing of Agreements. The Closing shall not occur unless the Closings contemplated by the Partnership Purchase Agreement and the TOC Purchase Agreement have occurred or will occur concurrently with the Closing. ARTICLE IX TERMINATION PRIOR TO CLOSING 9.1 Termination. This Agreement may be terminated at any time prior to the Closing: a. By the mutual written consent of Berry and Tannehill; b. Subject to the right of either party to extend the Closing as provided in Section 2.6 hereof, upon written notice by either party to the other party if the Closing has not occurred forty-five (45) days after the execution of this Agreement; c. By Berry in writing if Tannehill or the Shareholders shall be in Default; d. By Tannehill in writing if Berry shall be in Default; e. By Berry if, after the date of this Agreement, there shall have occurred a Material adverse change (or any development or condition involving a prospective Material adverse change) in the business, financial condition or results of operations of Tannehill; or f. By Berry, if the transaction is not approved by all of the Shareholders.

27 9.2 Effect on Obligations. Termination of this Agreement pursuant to this Article shall terminate all obligations of the parties hereunder, except for the obligation under Sections 3.12 and 4.5; provided, however, that termination pursuant to paragraphs 9.1c or d hereof shall not relieve any defaulting party from any liability to the other parties hereto. ARTICLE X INDEMNIFICATION 10.1 Indemnification by Berry. Berry agrees to indemnify, defend and hold Tannehill, and agents of Tannehill, harmless from and against any and all loss, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Tannehill and its agents may incur or become subject to arising out of or due to any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Berry contained in this Agreement. 10.2 Indemnification by Tannehill and the Shareholders. Tannehill and the Shareholders, jointly and severally, agree to indemnify, defend and hold Berry, and the officers, directors, employees and agents of Berry (collectively, the officers, directors, employees and agents being referred to in each case as its "Related Parties") harmless from and against any and all lawsuits, liability, damages, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Berry and its Related Parties may incur or become subject to or arising out of or due to (a) any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Tannehill or the Shareholders contained in this Agreement, or (b) any claim by SOCAL, PG&E, Solar, or any other creditor of Tannehill or the Shareholders against Berry based upon or related to, in whole or in part, the SOCAL Contract, the SOCAL Litigation or the transfer of the Cogeneration Assets to Berry. 10.3 Survival. The several warranties, indemnities, representations, covenants and agreements of the parties contained in this Agreement and in any other instrument delivered pursuant hereto shall survive the Closing and shall remain in full force and effect thereafter. 10.4 Notice and Opportunity to Defend. a. If a party seeking indemnification (the "Indemnitee") becomes aware of any matters that it believes may give rise to an indemnifiable claim, or asserts any claim that it believes may be indemnifiable pursuant to this Agreement, the Indemnitee shall give the party obligated to provide indemnification (the "Indemnifying Party") prompt written notice of such matter or claim, stating with particularity the nature of such matter or the aforementioned claim and the amount thereof. Failure to provide such notice shall not affect the right of the Indemnitee to indemnification except to the extent such failure shall have resulted in

28 liability to the Indemnifying Party that could have been actually avoided had such notice been provided within such required time period. b. If the matter that the Indemnitee believes gives rise to an indemnifiable claim does not involve a third party claim against an Indemnitee, the Indemnifying Party shall have thirty (30) days from the date on which it received notice of such claim pursuant to this Section to respond to such notice. If such Indemnifying Party accepts responsibility or does not respond within such thirty (30)-day period, the Indemnifying Party shall promptly pay to the Indemnitee the full amount of such claim. If the Indemnifying Party rejects any liability with respect to such claim, it shall give written notice of such objection to the Indemnitee within such thirty (30)-day period and the parties shall seek to resolve such claim by agreement. If the parties are unable to resolve such claim by agreement within sixty (60) days following the expiration of such thirty (30)-day period mentioned above, the parties shall be entitled to pursue, without prejudice to any of their rights hereunder, such remedies as may be available to the parties under applicable law. c. In the event any action, suit, proceeding or investigation is brought against the Indemnitee by a third party which the Indemnitee believes may give rise to an indemnifiable claim, the Indemnitee shall give the Indemnifying Party prompt written notice of the commencement of such action, suit, proceeding or investigation as provided in paragraph a. of this Section. Such Indemnifying Party shall have a period of thirty (30) days after receipt of such notice within which to respond to such notice. If such Indemnifying Party does not respond within such thirty (30)-day period or rejects responsibility for such matter in whole or in part, the Indemnitee shall be free to pursue, without prejudice to any of its rights hereunder, such remedies as may be available to such party under applicable law. If such Indemnifying Party accepts responsibility, such Indemnifying Party shall, as between the Indemnitee and the Indemnifying Party, be obligated to compromise or defend such matter, at its own expense. The Indemnitee shall employ counsel of its choice and the Indemnifying Party shall reimburse the Indemnitee for attorneys' fees and costs. The Indemnifying Party shall cooperate fully with the Indemnitee and its counsel in the defense against any such asserted liability. Any compromise of such asserted liability by the Indemnitee shall require the prior written consent of the Indemnifying Party, which shall not be unreasonably withheld. If, however, the Indemnitee refuses its consent to a bona fide offer of settlement that involves solely the payment of cash that the Indemnifying Party wishes to accept, the Indemnitee may continue to pursue such matter, free of any participation by the Indemnifying Party, at the sole expense of the Indemnitee. In such event, the obligation of the Indemnifying Party to the Indemnitee shall be equal to the lesser of (i) the amount of the offer of settlement that the Indemnitee refused to accept plus the costs and expenses of the Indemnitee prior to the date the Indemnifying Party notified the Indemnitee of the offer of settlement; and (ii) the actual out-of-pocket amount the Indemnitee is obligated to pay as a result of such party's continuing to pursue such matter. An Indemnifying Party shall be entitled to recover from the Indemnitee any additional expenses incurred by such Indemnifying Party as a result of the decision of the Indemnitee to pursue such matter.

29 10.5 General. The indemnification provided in this Agreement shall apply regardless of whether the matter subject to indemnification involved an action taken or omitted that was negligent, grossly negligent or reckless by the Person to be so indemnified. It is understood that such indemnification is intended to be a means of compensating the parties for any damage or liability directly or indirectly realized by them for matters subject to such indemnification. To the extent the indemnification provided for herein may not be provided to any Person under law, such indemnification shall be required to be provided to any other Person for whom such indemnification may be permissible as herein provided. ARTICLE XI MISCELLANEOUS 11.1 Entire Agreement. This Agreement and related documents executed concurrently herewith constitute the sole understanding of the parties hereto with respect to the matters provided for herein and supersedes the AIP and any previous agreements and understandings between the parties with respect to the subject matter hereof. No amendment, modification or alteration of the terms or provisions of this Agreement shall be binding unless the same shall be in writing and duly executed by Berry and Tannehill. 11.2 Successors and Assigns. This Agreement will inure to the benefit of and be binding upon Berry, Tannehill and the Shareholders and their respective successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by any of the parties hereto without the prior written consent of the other parties hereto. 11.3 Expenses. Except as provided in Sections 10.1 and 10.2 hereof, each party hereto shall be responsible for the payment of the fees and expenses of their respective counsel, accountants and other experts. 11.4 Taking of Necessary Action. Subject to the terms and conditions of this Agreement, each of the parties hereto agrees, subject to applicable laws, to use all reasonable best efforts promptly to take or cause to be taken all action and to promptly do or cause to be done all things necessary, proper or advisable under applicable laws and regulations to consummate and make effective the transactions contemplated by this Agreement. Without limiting the foregoing and subject to the terms and conditions of this Agreement, the parties shall use their reasonable best efforts to obtain and make all consents, approvals, assurances and filings of or with third parties and Governmental Entities necessary or advisable for the consummation of the transactions contemplated by this Agreement. Each party shall cooperate with the other in good faith to help the other satisfy its obligations hereunder. 11.5 Invalidity. Except for satisfaction of the conditions of Article VII or VIII, and the provisions of Article X, if any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other conditions

30 and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic and legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner to the end that transactions contemplated hereby are fulfilled to the extent possible. 11.6 Attorneys' Fees. In the event of any claim, dispute or controversy arising out of or relating to this Agreement, including an action for declaratory relief, the prevailing party in such action or proceeding shall be entitled to recover its taxable costs or arbitration fees, and reasonable out-of-pocket expenses, including, but not limited to, telephone calls, photocopies, expert witnesses, travel, computer expenses related to litigation, and attorneys' fees to be fixed by the court or the arbitrator. Such recovery shall include court costs, out-of-pocket expenses and attorneys' fees on appeal, if any. The court shall determine who is the "prevailing party," whether or not the dispute or controversy proceeds to final judgment. 11.7 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original and all of which shall constitute the same instrument. 11.8 Headings. The headings of the articles, sections and paragraphs of this Agreement and of the exhibits hereto are included for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction hereof or thereof. 11.9 Construction and References. Words used in this Agreement, regardless of the number or gender specifically used, shall be deemed and construed to include any other number, singular or plural, and any other gender, masculine, feminine or neuter, as the context shall require. Unless otherwise specified, all references in this Agreement to articles, sections, paragraphs or clauses are deemed references to the corresponding articles, sections, paragraphs or clauses in this Agreement, and all references in this Agreement to exhibits are references to the corresponding exhibits attached to this Agreement. 11.10 Modification and Waiver. Any of the terms or conditions of this Agreement may be waived in writing at any time by the party which is entitled to the benefits thereof. No waiver of any of the provisions of this Agreement shall be deemed to or shall constitute a waiver of any other provisions hereof (whether or not similar).

31 11.11 Notices. Any notice, request, instruction or other document to be given hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: (a) if to Tannehill, to: Tannehill Electric Company, Inc. Attn: Mr. Albert G. Boyce, Jr., President 120 Manteca Avenue P.O. Box 871 Manteca, California 95336 Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014 with copies to: Roger Coley, Esq. 330 H Street, No. 7 Bakersfield, California 93304 Facsimile No. (805) 327-9120 Confirmation No. (805) 328-5575 (b) if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman, President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Facsimile No. (805) 769-8960 Confirmation No. (805) 769-8811 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Office Box 9100 Oxnard, California 93031-9100 Facsimile No. (805) 988-8387 Confirmation No. (805) 485-1000

32 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notices delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given. 11.12 Public Announcements. Without the prior express consent of Berry, neither Tannehill nor any Shareholder shall make any public statements, including, without limitation, any press releases, with respect to this Agreement and the transactions contemplated hereby. 11.13 Governing Law; Interpretation. This Agreement shall be construed in accordance with and governed by the laws of the State of California (regardless of the laws that might otherwise govern under applicable California principles of conflict of laws) as to all matters, including, but not limited to, matters of validity, construction, effect, performance and remedies. 11.14 Jurisdiction. Any legal action or proceeding with respect to this Agreement may be brought in the federal or state courts for the County of Kern, in the State of California, and by execution and delivery of this Agreement, Berry and Tannehill hereby accept the jurisdiction of the aforesaid courts.

33 IN WITNESS WHEREOF, Berry and Tannehill have caused this Agreement to be executed as of the date first above written. BERRY PETROLEUM COMPANY, TANNEHILL ELECTRIC COMPANY, INC., a Delaware corporation a California corporation By: ___________________________ By: ________________________________ Jerry V. Hoffman, President Albert G. Boyce, Jr., President and Chief Executive Officer By: ___________________________ By: ________________________________ Kenneth A. Olson, Secretary John W. Tannehill, Secretary The undersigned constitute all of the Shareholders of Tannehill and hereby agree jointly and severally to be bound to the terms of this Agreement, including but not limited to, the agreement to indemnify Berry Petroleum Company under the terms of Article X of this Agreement. By signing this Agreement, the Shareholders of Tannehill hereby unanimously consent to the transfer of the Cogeneration Assets from Tannehill to Berry. BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation By: ____________________________ ____________________________________ Albert G. Boyce, Jr., President Albert G. Boyce, Jr., as Trustee and Secretary of Trust "B" Under Will of Albert G. Boyce, Sr., Deceased _________________________________ ___________________________________ William J. Boyce Albert G. Boyce V _________________________________ ____________________________________ Mary K. Boyce John T. Hinkle _________________________________ ____________________________________ Bettianne H. Bowen James L. Hinkle

34 VERNIER RESOURCES CORPORATION, GENERAL WESTERN, INC., a Texas corporation a New Mexico corporation By: _____________________________ By: _______________________________ Bettianne H. Bowen, President James L. Hinkle, President and Secretary By: _____________________________ Cheryl Bailey Harrison, Secretary __________________________________ ________________________________ Lisle Q. Tannehill Thomas H. Tannehill __________________________________ ________________________________ Gail Kay Tannehill, as Trustee John W. Tannehill of the Gail Kay Tannehill Family Trust dated April 9, 1996 __________________________________ ________________________________ Delmar R. Archibald, as Trustee Joy A. Archibald, as Trustee of of the Delmar R. Archibald the Delmar R. Archibald Family Family Trust dated June 22, 1982 Trust dated June 22, 1982 Spousal Consents The undersigned, spouses of the Shareholders named in this Agreement, hereby consent to the terms and conditions of this Agreement and agree that their community property, if any, included in the Cogeneration Assets, as defined herein, is subject to this Agreement. _________________________________ _________________________________ _________________________________ _________________________________ _________________________________ _________________________________

1 RIGHT TO PURCHASE CONTRACT This Right to Purchase Contract ("Agreement") dated as of November 8, 1996, among Tannehill Electric Company, Inc., a California corporation ("Tannehill"), Berry Petroleum Company, a Delaware corporation ("Berry"), and Security Pacific Leasing Corporation, a Delaware corporation ("SPLC"), with reference to the following facts: RECITALS A. Tannehill and SPLC, and certain other entities and individuals, are parties to a Participation Agreement dated as of August 15, 1994 (the "Participation Agreement") relating to SPLC's purchase of the Plant, the lease of the Premises from the Premises Lessors to SPLC, the sublease of the Premises to Tannehill, and the lease of the Facility to Tannehill. B. Concurrent with the execution and delivery of the Participation Agreement, and in accordance therewith, the parties thereto entered into the following agreements, among others: 1. The Premises Lease, which provides, inter alia, for the lease of the Premises by the Premises Lessors to SPLC; 2. The Lease dated as of August 15, 1994, among SPLC and Tannehill, which provides, inter alia, for the lease of the Plant by SPLC to Tannehill and the sublease of the Premises by SPLC to Tannehill (capitalized terms herein not otherwise defined herein being used as defined therein); C. The Lease provides, inter alia, that Tannehill has the option to purchase the Facility which option cannot be exercised before December 31, 2000; D. SPLC is willing to grant to Tannehill the immediate right to purchase the Facility, and to consent to Tannehill's assigning such right to Berry, and to the simultaneous termination of the Lease, all on the terms and conditions set forth herein; and E. Tannehill and Berry have entered into a Purchase and Sale Agreement dated as of November 8, 1996 ("Purchase and Sale Agreement"), which provides, inter alia, for Berry to acquire the Facility from SPLC. AGREEMENT NOW, THEREFORE, in consideration of the mutual covenants and agreements as contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereby agree as follows: 1. GRANT OF RIGHT TO PURCHASE 1.1 Grant of Right to Purchase Facility. Subject to and upon the terms and conditions set forth in this Agreement, and in reliance on the representations, warranties, indemnities and other assurances contained herein, SPLC hereby grants to Tannehill, its successors and assigns,

2 the right to purchase ("Right to Purchase"), effective for all purposes as of October 1, 1996, all of SPLC's right, title and interests in the Facility, and the other property described in Paragraph 1 of the Bill of Sale and Assignment referred to in Section 3.2, and to the extent assignable by SPLC all rights, privileges, benefits and powers conferred upon or owned by SPLC under the documents described in Exhibit "A" to the Quitclaim referred to in Section 3.2 for $6,282,586.47 ("the "Purchase Price"). The parties hereto acknowledge and agree that the Purchase Price represents full and fair consideration for the Facility, and that no party hereto will seek any adjustment of the Purchase Price for any reason whatsoever. Such Right to Purchase shall terminate on November 30, 1996, if not exercised before such date. The Right to Purchase may be exercised upon 24 hours prior written notice (the "Closing Notice") by the holder of such right to SPLC on a Business Day or upon such shorter written notice as the parties may agree to specifying the date (which shall be a Business Day) on which the documents are to be recorded and the funds are to be delivered from escrow (the "Closing Date"). 1.2 Purchase Price. The Purchase Price shall be due on the Closing Date. Tannehill shall pay any sales, use or transfer tax in connection with the Right to Purchase and the exercise of the Right to Purchase whether such taxes are assessed on the Closing Date or thereafter. 1.3 Acceptance by Tannehill. Tannehill hereby accepts SPLC's grant of the Right to Purchase, and assumes, and agrees to fully comply with, any and all rights and obligations of SPLC relating to the Facility, and all other agreements relating thereto. 2. ASSIGNMENT OF RIGHT TO PURCHASE 2.1 Assignment by Tannehill. Tannehill hereby assigns to Berry, its successors and assigns, effective for all purposes as of October 1, 1996, all of its right, title and interest in the Right to Purchase. 2.2 Acceptance by Berry. Berry hereby accepts the assignment from Tannehill of the Right to Purchase the Facility, effective October 1, 1996, and agrees to pay the Purchase Price directly to SPLC; provided, however, that (a) Tannehill's obligations to pay any sales, use or transfer taxes on the sale of the Facility from SPLC to Berry shall not be assumed by Berry, and Tannehill shall remain obligated to pay such taxes on the Closing Date and/or thereafter, and (b) Berry does not assume any of Tannehill's obligations under the Participation Agreement, or otherwise, unless expressly assumed herein or by separate written agreement. 2.3 Purchase Price to be Paid by Berry. Berry agrees that, in accordance with its acceptance herein of the assignment of Right to Purchase from Tannehill, it will, subject to satisfaction of the conditions in Section 4, purchase the Facility and will pay the Purchase Price directly to SPLC on the Closing Date. 2.4 Execution of Further Documents. The parties agree to execute all other documents necessary to consummate the transfer by which SPLC will release any security interests it may have arising out of or relating to its ownership of the Facility. 2.5 Consent by SPLC. SPLC hereby consents to Tannehill's assignment to

3 Berry of the Right to Purchase (effective for all purposes as of October 1, 1996), and Tannehill's rights under the Lease, and all related documents, and SPLC hereby consents to the assignment by Premises Lessors of the Premises Lease to Berry. 3. CLOSING OF PURCHASE OF FACILITY The sale of the Facility pursuant to the exercise of the Right to Purchase shall be accomplished through an escrow (the "Escrow") with First American Title Insurance Company (the "Escrow Agent") under an Escrow Agreement in the form of Exhibit A (the "Escrow Agreement") as follows: 3.1 Concurrently herewith, the parties hereto shall execute and deliver the Escrow Agreement to the Escrow Agent. 3.2 Upon execution and delivery of the Escrow Agreement by the Escrow Agent, SPLC shall execute and deliver to the Escrow Agent a Bill of Sale and Assignment in the form of Exhibit B, a Quitclaim in the form of Exhibit C, a Termination and Release of Security Interests in the form of Exhibit D, and UCC 2's in the form of Exhibits E-1, E-2 and E-3. 3.3 Not later than 2:00 p.m. Pacific Time on the scheduled Closing Date specified in the Closing Notice, Berry shall deliver to the Escrow Agent the Funds described in Section 1(e) of the Escrow Agreement. 3.4 On the Closing Date, upon satisfaction or waiver in writing of the conditions precedent set forth in Section 4, the parties hereto shall cause their counsel to deliver to the Escrow Agent Closing Instructions in the form of Annex I to the Escrow Agreement (the "Closing Instructions"). 4. CONDITIONS PRECEDENT The respective obligations of the parties hereto to consummate the sale of the Facility as contemplated herein (the "Closing") are subject to the satisfaction or waiver in writing of the following conditions precedent: 4.1 All conditions to the closing of the transactions contemplated under the Purchase and Sale Agreement shall have been satisfied. 4.2 Escrows, Nos. 1125444N, 1128320N and 1128321N among Escrow Agent, Berry and Tannehill (the "Other Escrows") shall close simultaneously with the closing of the Escrow. 4.3 The representations and warranties of each party hereto shall be true and correct at the time of the Closing, and by delivery of the Closing Instructions each party shall be deemed to have confirmed that such is the case. 4.4. Berry and Tannehill shall have received a Termination and Release of Security Interests in the form of Exhibit D, duly executed and delivered by Tannehill, Tannehill Oil

4 Company, a California general partnership ("TOC"), and SPLC, and Tannehill shall have given notice thereof to PG&E and Solar (as defined in Exhibit D) and requested their execution and delivery of the acknowledgment of such notice provided therein. 4.5 SPLC shall have received from TOC and each Premises Lessor acknowledgments of their awareness of the transactions contemplated hereby and their confirmation that (i) the indemnity obligations of Tannehill under Sections 11, 16 and 17 of the Lease, and their respective Guarantees, continue in full force and effect notwithstanding the Closing of the transactions contemplated hereby and (ii) the obligations of Tannehill to SPLC hereunder and under all documents executed and delivered in connection herewith are guaranteed under the Guarantees. 4.6 SPLC shall have received an opinion of counsel for Tannehill in form and substance satisfactory to SPLC. 4.7 SPLC shall have received evidence of the insurance required by Section 5.3. 5. REPRESENTATIONS, WARRANTIES AND COVENANTS 5.1 SPLC represents and warrants to Tannehill and any assignee of the Right to Purchase that: 5.1.1 LIMITATION OF REPRESENTATIONS. THE FACILITY AND ANY OTHER RIGHTS SUBJECT TO THE RIGHT TO PURCHASE WILL BE CONVEYED, QUITCLAIMED OR RELEASED "AS IS" AND "WHERE IS", AND SPLC MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT THERETO OR WITH RESPECT TO ITS RIGHT, TITLE AND INTEREST THEREIN OR WITH RESPECT TO THE VALUE, MERCHANTABILITY, COMPLIANCE WITH SPECIFICATIONS, CONDITION, DESIGN, OPERATION, FREEDOM FROM PATENT OR TRADEMARK INFRINGEMENT, ABSENCE OF LATENT DEFECTS, SUITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR FITNESS FOR USE OF THE PLANT OR ANY PART THEREOF, OR ANY OTHER REPRESENTATION OR WARRANTY WHATSOEVER, EXPRESS OR IMPLIED, WITH RESPECT TO SUCH PROPERTY OR ANY PART THEREOF, except that SPLC has received and presently has whatever right, title and interest in and to the Facility and each and every item of the Facility and other rights described above as was conveyed to it, and SPLC has not made any prior sale, assignment, or transfer of such right, title and interest in and to any item of the Facility to any person, firm or corporation; and SPLC's right, title and interest therein are free and clear of all claims, liens, encumbrances of any kind whatsoever arising by, through or under SPLC. 5.1.2. Tannehill's Good Standing. SPLC has not given or received any notice of any default to or by the Lessee under the Lease. 5.1.3. No Notice of Violations. SPLC has not received any written notice of any violation of any zoning regulation, ordinance, law, rule, order, regulation or requirement relating to the Facility, or assets or operation of or on its properties which remains uncured or which has not been dismissed. 5.2 Consent. Tannehill and Berry represent and warrant that no consent, approval or authorization of, or exemption by, or filing with, any governmental entity or any other person is required in connection with the execution and delivery of this Agreement or the taking of any other action contemplated hereby by either of them or SPLC; and SPLC represents and warrants

5 that no consent, approval or authorization of, or exemption by, or filing with, any bank regulatory authority is required in connection with its execution and delivery of this Agreement or the taking of any other action contemplated hereby. 5.3 Insurance. The purchaser of the Facility will, at its sole costs and expense, include SPLC and Tannehill as additional insured under a general liability policy on the Facility for a period of one year after the date of recordation of the Bill of Sale and Assignment. 5.4 Title. Tannehill represents that the Prior Bill of Sale as defined in paragraph 1.b of the Bill of Sale and Assignment conveyed good and marketable title to the Facility to SPLC free and clear of all liens, except Permitted Liens, and the Premises Lease conveyed a valid leasehold interest in the Premises. 6. INDEMNIFICATIONS BY TANNEHILL AND BERRY 6.1 Indemnification by Tannehill. Tannehill agrees to indemnify, defend and hold SPLC and its officers, directors, employees and agents (collectively, "Indemnitees") harmless from and against any and all lawsuits, liability, damages, costs and expenses (including, without limitation, reasonable attorneys' fees and costs, including allocated time charges of internal counsel) that any Indemnitee may incur or become subject to arising out of or due to any inaccuracy of any representation, or the breach of any warranty or covenant by Tannehill contained in this Agreement. 6.2 Indemnification by Berry. Berry agrees to indemnify, defend and hold each Indemnitee harmless from and against any and all lawsuits, liability, damages, costs and expenses (including, without limitation, reasonable attorneys' fees and costs) that any Indemnitee may incur or become subject to or arising out of or due to any inaccuracy of any representation, or the breach of any warranty or covenant by Berry contained in this Agreement. 7. MISCELLANEOUS 7.1 Successor and Assigns. This Agreement will inure to the benefit of and be binding upon the parties hereto, and their respective successors and assigns. 7.2 Expenses. Except as otherwise provided herein, Tannehill and Berry shall be responsible for the payment of the fees and expenses of their respective counsel, accountants and other experts, and Tannehill shall be responsible for the payment of fees and expenses of counsel (including allocated time charges of internal counsel) of SPLC and accountants and other experts incurred by SPLC. 7.3 Modification and Waiver. Any of the terms or conditions of this Agreement may be waived in writing at any time by the party which is entitled to the benefits thereof. No waiver of any of the provisions of this Agreement shall be deemed to or shall constitute a waiver of any other provisions hereof (whether or not similar). 7.4 Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purpose and intent of this Agreement, to the extent permitted by applicable law.

6 7.5 Invalidity. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other provisions of this Agreement shall remain in full force and effect. 7.6 Attorneys' Fees. In the event of any claim, dispute or controversy arising out of or relating to this Agreement, the prevailing party in such action or proceeding shall be entitled to recover its reasonable attorneys' fees and costs (including allocated time charges of internal counsel). The court shall determine who is the "prevailing party," whether or not the dispute or controversy proceeds to final judgment. 7.7 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original and all of which shall constitute the same instrument. 7.8 Notices. Any notice, request, instruction or other document to be delivered hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: if to Tannehill, to: Tannehill Electric Company, Inc. Attn: Albert G. Boyce, Jr., President 120 Manteca Avenue Post Office Box 871 Manteca, California 95336 Facsimile No.: (209) 239-7886 Confirmation No.: (209) 239-4014 with copies to: Noriega Alexander & Bradshaw Attn: William L. Alexander, Esq. 1801 - 18th Street Bakersfield, California 93301 Facsimile No.: (805) 327-5492 Confirmation No.: (805) 327-5363 if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman, President & Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268

7 Facsimile No.: (805) 769-8960 Confirmation No.: (805) 769-8811 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Of fice Box 9100 Oxnard, California 93031-9100 Facsimile No.: (805) 988-8387 Confirmation No.: (805) 485-1000 If to Security Pacific: Security Pacific Leasing Corporation Attn: Albert Norona Contract Administration 555 California Street, 4th Floor San Francisco, California 94104 Facsimile No.: (415) 765-7373 Confirmation No.: (415) 765-7449 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notice delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given. 7.9 Headings. Headings used in this Agreement are included for convenience only and shall not be deemed to constitute part of this Agreement or to affect its construction. 7.10 Governing Law; Interpretation. This Agreement shall be construed in accordance with and governed by the laws of California as to all matters relating hereto. 7.11 Survival. The warranties, representations and indemnities contained in this Agreement, and in any other instrument delivered pursuant hereto, shall survive the Closing Date and shall remain in full force and effect thereafter. In addition, notwithstanding the sale of the Facility and termination of the Lease or the Lease Term, whether by operation of law, or otherwise, Tannehill shall remain obligated under Sections 11, 16 and 17 of the Lease after termination thereof.

8 7.12 Entire Agreement. This Agreement and related documents executed concurrently herewith constitute the sole understanding of the parties hereto with respect to the matters provided for herein and supersede any previous agreements and understandings between the parties with respect to the subject matter hereof. No amendment, modification or alteration of this Agreement shall be binding unless in writing and duly executed by all parties hereto. IN WITNESS WHEREOF, the parties have caused this Agreement to be executed as of the date first above written. TANNEHILL ELECTRIC COMPANY, BERRY PETROLEUM COMPANY, INC., a California corporation a Delaware corporation By: By: Albert G. Boyce, Jr., President Jerry V. Hoffman, President By: By: John W. Tannehill, Secretary Kenneth A. Olson, Secretary SECURITY PACIFIC LEASING CORPORATION, a Delaware corporation By: Philip H. Benner Vice President

9 EXHIBIT A TO RIGHT TO PURCHASE CONTRACT ESCROW AGREEMENT This Escrow Agreement ("Agreement") is entered into as of November 8, 1996, among Tannehill Electric Company, Inc., a California corporation ("Tannehill"), Security Pacific Leasing Corporation, a Delaware corporation ("SPLC"), Berry Petroleum Company, a Delaware corporation ("Berry"), and First American Title Insurance Company, a California corporation (in its capacity as escrow agent hereunder, "Escrow Agent"). RECITALS A. Tannehill and Berry have entered into that certain Purchase and Sale Agreement dated as of November 8, 1996 ("Purchase and Sale Agreement"), whereby Berry agreed to acquire from Tannehill or SPLC and Tannehill agreed to convey or cause SPLC to convey to Berry, inter alia, all of Tannehill's right, title and interest in and to certain cogeneration assets, including, without limitation, its lease rights to a natural-gas fired cogeneration facility, and all equipment and facilities relating thereto (collectively, the "Cogeneration Assets") as more particularly described in the Purchase and Sale Agreement (the "Property"). B. SPLC, Tannehill and Berry have entered into that certain Right to Purchase Contract dated November 8, 1996, pursuant to which SPLC granted to Tannehill an assignable option to purchase the Property, and SPLC has consented to the assignment of such option to Berry. C. The parties hereto desire to enter into a written agreement outlining the actions to be taken in connection with the delivery of certain documents and instruments into and out of escrow. NOW, THEREFORE, in consideration of the agreements and the mutual covenants set forth herein, the parties hereto, intending to be legally bound, hereby agree as follows: 1. On or before the Closing Date, Tannehill, SPLC and Berry, as the case may be, shall deliver to Escrow Agent the following original documents (attached as Exhibits to the Right to Purchase Contract) described in clauses (a) through (d) below (the "Escrow Documents"), Berry shall wire transfer to Escrow Agent the funds described in clause (e) below (the "Funds") and Tannehill shall wire transfer the funds described in clause (f) below (the "Additional Funds"): (a) Bill of Sale and Assignment, dated as of November _____, 1996, executed by SPLC, in recordable form, conveying the Property to Berry. (b) Termination and Release of Security Interests, dated as of November _____, 1996, executed by Tannehill, Tannehill Oil Company, a California general partnership, and SPLC. (c) Quitclaim, dated as of November ______, 1996, executed by SPLC, in recordable form.

10 (d) UCC 2's dated November _____, 1996, executed by SPLC. (e) Federal funds bank wire transfer to account no. _______ of Escrow Agent at Union, Bank located at 5400 Stockdale Highway, Bakersfield, CA (ABA #122000496) referring to "First American Title Insurance Company Escrow No. _______," from Berry in the amount of $6,282,586.47 (the "Funds") to be used to pay the purchase price of the Property, plus an amount from Berry sufficient to cover all recording fees (but not any sales, use or transfer tax) relating to the Escrow Documents and the transfer and conveyance to be effected thereby. (f) Federal funds bank wire transfer in account no. _______ of Escrow Agent at Union Bank, located at 5400 Stockdale Highway, Bakersfield, CA (ABA #122000496) referring to "First American Title Insurance Company Escrow No. ______," from Tannehill in the amount of $4,500.00 (the "Additional Funds") to be used to pay all of the fees incurred by SPLC's legal counsel in connection with the preparation of the Escrow Documents and the closing. 2. Escrow Agent hereby agrees to hold and distribute the Escrow Documents and the Funds pursuant to the terms hereof, for the fee hereinafter described. If the Funds are not disbursed pursuant to these instructions on the date received, the Funds shall be invested overnight in interest bearing accounts or money market accounts for Berry's account, at the risk of and at the instruction of Berry. 3. When, but only when, on or before November 30, 1996, or such later date as Tannehill, SPLC and Berry may designate in writing (the "Closing Date") as (a) Escrow Agent receives facsimile authorization, in the form of Annex I, from William L. Alexander, Esq. on behalf of Tannehill, Peter Leiter, Esq. on behalf of SPLC, and Laura K. McAvoy, Esq., on behalf of Berry (the "Closing Instructions"), (b) Escrow Agent is authorized to close the escrows described in Section 14, and (c) Escrow Agent holds the Funds and the Additional Funds and is prepared to disburse or apply the Funds and the Additional Funds in accordance with Paragraph 6, Escrow Agent shall cause all necessary or appropriate actions to be taken with respect to the Escrow Documents and the Funds and the Additional Funds such that the Escrow Documents, other than documents 1(b) and 1(d) listed above, can be recorded and the Funds and the Additional Funds disbursed on the Closing Date. Such actions shall include, without limitation, the following: (a) Escrow Agent shall record or cause to be recorded the executed original of the Bill of Sale and Assignment and, if required by applicable law, any transfer tax declaration corresponding thereto, in the appropriate records of Kern County, California, and in connection therewith shall insert the recording date of the recorded document in the appropriate place in each of the Escrow Documents; (b) Escrow Agent shall record or cause to be recorded the executed original of the Quitclaim and, if required by applicable law, any transfer tax declaration corresponding thereto, in the appropriate records of Kern County, California, and in connection therewith shall insert the recording date of the recorded document in the appropriate place in each of the Escrow Documents; and

11 (c) Escrow Agent shall send the UCC-2 Financing Statements for filing with the California Secretary of State's Office together with appropriate filing fees, and concurrently record, or cause to be recorded, executed original counterparts of such UCC 2's which need to be filed in the appropriate records of Kern County, California to effect the release any UCC-1 Financing Statements previously filed of record. (d) All documents filed for recording shall be distributed to Berry upon Escrow Agent's receipt of such documents back from recording. Escrow Agent shall also distribute executed counterparts of all other Escrow Documents to each of Tannehill and SPLC, and the original of the document described in 1(b) above shall be delivered to Berry. 4. Upon completion of the actions described in Paragraphs 3(a) and (b), Escrow Agent shall give notice of such fact (the "Closing Confirmation Notice"), via facsimile, to Tannehill, SPLC and Berry, and their respective counsel, at the Confirmation Nos. provided in paragraph 8 below. 5. If Escrow Agent, through no fault of its own, is unable to complete the transaction contemplated by this Agreement prior to 4:00 p.m., Pacific Time, on the Closing Date, Escrow Agent shall give notice of such fact, via facsimile, to Tannehill, SPLC and Berry, and their respective counsel at the Confirmation numbers provided in paragraph 8 below, and at SPLC's request, shall return the Escrow Documents to SPLC and, at Berry's request shall return the Funds to Berry by federal funds bank wire, and shall forward the Additional Funds to SPLC. The return of Funds to Berry shall be by federal funds bank wire to: Wells Fargo Bank Located at: Taft, CA 93268 Account No.: 4893-027706 ABA No.: 121000248 Account Name: Berry Petroleum Company provided, however, that such requests shall not terminate this escrow, and such documents and the Funds shall be redelivered by the parties, as the case may be, upon 24-hour notice from Escrow Agent that escrow will be able to close on or before November 30, 1996. 6. On the Closing Date delivery of the Closing Confirmation Notice and telephonic confirmation of receipt by the recipients thereof, Escrow Agent shall disburse the Funds as follows: First, to SPLC $6,282,586.47 plus $4,500.00 by federal funds bank wire to the account of SPLC, Acct. #14995-50439, ABA #121-000-358, at Bank of America NT&SA, SF-RCBO #1499, San Francisco, CA 94104, Attn: Controller, Re: Tannehill Electric. Second, to and for Escrow Agent's own account a portion thereof corresponding to recording fees (but not any sales, use or transfer taxes, which shall be the sole obligation of Tannehill as hereinafter provided) relating to the Escrow Documents and the transfer and conveyance to be effected thereby.

12 Third, to Berry, by federal funds bank wire to the account of Berry described in Paragraph 5, any interest earned on any overnight investment of the Funds. In addition to the above disbursements, Escrow Agent shall provide Tannehill with a written calculation of the amount of any transfer taxes relating to the Escrow Documents, and Tannehill shall pay such amount on or before the Closing Date. Escrow Agent shall thereupon issue a statement of receipts and disbursements to Tannehill, SPLC and Berry. 7. SPLC shall not incur any expense in connection with the issuance of these instructions or the fulfillment of the requirements contained herein. All escrow and recording fees in connection herewith shall be the sole obligation of Berry. Any sales, use or transfer taxes shall be the sole obligation of Tannehill. 8. Any notice, request, instruction or other document to be given hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: if to Tannehill, to: Tannehill Electric Company, Inc. Attn: Albert G. Boyce, Jr., President 120 Manteca Avenue Post Office Box 871 Manteca, California 95336 Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014 with copies to: Noriega Alexander & Bradshaw Attn: William L. Alexander, Esq. 1801 - 18th Street Bakersfield, California 93301 Facsimile No. (805) 327-5492 Confirmation No. (805) 327-5363

13 if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman, President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Facsimile No. (805) 769-8960 Confirmation No. (805) 769-8811 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Of fice Box 9100 Oxnard, California 93031-9100 Facsimile No. (805) 988-8387 Confirmation No. (805) 485-1000 if to Security Pacific, to: Security Pacific Leasing Corporation Attn: Peter Leiter, Esq., Senior Counsel Bank of America Legal Department 555 California Street, 4th Floor San Francisco, CA 94101 Facsimile No. (415) 765-7428 Confirmation No. (415) 765-7424 if to Escrow Agent, to: First American Title Insurance Company Attn: Nancy J. Smith, Escrow Officer 4540 California Avenue, Suite 100 Bakersfield, CA 93309 Facsimile No. (805) 327-5311 Confirmation No. (805) 327-8533 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any

14 notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notice delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given. 9. This Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective heirs, executors, administrators, personal representatives, successors and assigns. Any and all rights granted to any of the parties hereto may be exercised by their agents or personal representatives. 10. Time is of the essence of this Agreement. 11. This Agreement is governed by and is to be construed under the laws of the State of California. 12. This Agreement may be executed in several counterparts, each of which shall be deemed an original and all such counterparts together shall constitute one and the same instrument. 13. This Agreement may be amended only by a written instrument similarly executed by all of the parties hereto. 14. The parties hereto understand and acknowledge that the transaction contemplated by this Agreement is being handled by the Escrow Agent in conjunction with three other escrows (i.e., Escrow Nos. 1125444N, 1128320N and 1128321N) involving the overall purchase and sale transaction between Tannehill and Berry. IN WITNESS WHEREOF, each of the parties hereto has signed this Agreement as of the date and year first above written. TANNEHILL ELECTRIC COMPANY, BERRY PETROLEUM COMPANY, INC., a California corporation a Delaware corporation By: By: Albert G. Boyce, Jr., President Jerry V. Hoffman, President By: By: John W. Tannehill, Secretary Kenneth A. Olson, Secretary

15 SECURITY PACIFIC LEASING FIRST AMERICAN TITLE CORPORATION, a Delaware corporation INSURANCE COMPANY, a California corporation By: By: Philip H. Benner, Vice President

16 EXHIBIT B TO RIGHT TO PURCHASE CONTRACT RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 BILL OF SALE AND ASSIGNMENT 1. KNOW ALL MEN BY THESE PRESENTS that SECURITY PACIFIC LEASING CORPORATION, a Delaware corporation ("Seller"), for good and valuable consideration to it paid by BERRY PETROLEUM COMPANY, a Delaware corporation ("Buyer"), hereby grants, conveys, bargains, sells, transfers and delivers unto Buyer, its successors and assigns, all of Seller's right, title and interest in and to: a. each and every item of the machinery, equipment, and other goods described in Exhibit A (the "Plant") and located on the real property near the city of Taft, Kern County, California (the "Site") described in Exhibit B; b. the Bill of Sale dated as of August 23, 1994, by Signal Capital Projects, Inc., as Seller, to Security Pacific Leasing Corporation, as Buyer (the "Prior Bill of Sale"); c. all licenses and other rights of Seller required, necessary or convenient for the use of all patented and unpatented inventions, devises, equipment, apparatuses and processes included in or constituting part of the Plant or useful in the operation thereof; d. all plans and specifications for the construction and installation of the Plant and the Site improvements (collectively, the "Facility"), together with all operating manuals, process descriptions, process flow sheets, piping, wiring and instrumentation drawings, equipment descriptions and lists, operating instructions, maintenance records, and all other technical information relating to the construction, installation, operation and maintenance of the Facility; and e. to the extent the following have not expired or been terminated on or before the date hereof, all representations, indemnities, warranties, guaranties and agreements, if any, made to or for the benefit of Seller and Seller's predecessors in interest under all contracts for the design, acquisition, construction and installation of the Facility, including, without limitation, warranties as to operation and performance of the components of the Facility and indemnities as to patent infringement. But Buyer shall not be liable for any of the obligations or duties of Seller or Seller's predecessor in interest thereunder.

17 TO HAVE AND TO HOLD the same unto Buyer, its successors and assigns, forever. 2. THE PLANT IS SOLD "AS IS" AND "WHERE IS" AND SELLER MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT THERETO OR WITH RESPECT TO ITS RIGHT, TITLE AND INTEREST THEREIN OR IN THE PRIOR BILL OF SALE OR WITH RESPECT TO THE VALUE, MERCHANTABILITY, COMPLIANCE WITH SPECIFICATIONS, CONDITION, DESIGN, OPERATION, FREEDOM FROM PATENT OR TRADEMARK INFRINGEMENT, ABSENCE OF LATENT DEFECTS, SUITABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR FITNESS FOR USE OF THE PLANT OR ANY PART THEREOF, OR ANY OTHER REPRESENTATION OR WARRANTY WHATSOEVER, EXPRESS OR IMPLIED, WITH RESPECT TO THE PLANT OR ANY PART THEREOF, except Seller covenants and warrants that: a. Each and every item of the Plant and other rights described above and Seller's rights, title and interest therein are free and clear of all claims, liens, encumbrances of any kind whatsoever arising by, through or under Seller; b. Seller has received and presently has whatever title in and to the Plant as was conveyed to it by the Prior Bill of Sale, and Seller has not made any prior sale, assignment, or transfer of such right, title and interest in and to any item of the Plant or in and to the Prior Bill of Sale to any person, firm or corporation; and c. Seller has the present power and authority and good and lawful right to sell, assign, and transfer its right, title and interest in and to the Plant and in and to the Bill of Sale to Buyer and Seller will defend such right, title and interest forever against all claims and demands whatsoever. 3. This Bill of Sale and Assignment is binding on the successors and assigns of Seller and inures to the benefit of the successors and assigns of Buyer. Seller acknowledges that the payment of the purchase price for the Plant has been made to it and, accordingly, this is a fully executed Bill of Sale and Assignment and Buyer's title to the Plant is in no way subject to defeasance or forfeiture by reason of any alleged failure of consideration to be received by Seller hereunder. This Bill of Sale and Assignment is executed and delivered on November ____, 1996, at San Francisco, California, and is governed by the laws of California.

18 IN WITNESS WHEREOF, Seller has caused this Bill of Sale and Assignment to be executed by its duly authorized officer. SECURITY PACIFIC LEASING CORPORATION a Delaware corporation By: Philip H. Benner, Vice President

19 STATE OF CALIFORNIA } } COUNTY OF ________________ } On __________________, before me, ________________________, Notary Public, personally appeared _______________________, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name{s} {is/are} subscribed to the within instrument and acknowledged to me that {he/she/they} executed the same in {his/her/their} authorized capacity{y/ies}, and that by {his/her/their} signature{s} on the instrument the person{s}, or the entity upon behalf of which the person{s} acted, executed the instrument. WITNESS my hand and official seal. _________________________________

20 EXHIBIT A TO BILL OF SALE AND ASSIGNMENT PLANT DESCRIPTION All equipment constituting a natural gas-fueled gas turbine cogeneration plant providing steam for enhanced oil recovery, with a 13.3 megawatt licensed capacity and a 15.63 net megawatt design capacity, comprised of, among other things, (a) two Solar "Mars" model gas turbine generators, (b) two Struthers Thermo-Flood heat recovery steam generators (each complete with diverter valves, stacks and a Johnson-Matthey selective catalytic reduction system), (c) a Bruner water softener system, (d) a water storage tank, (e) an ammonia storage tank, (f) two common 100% capacity Howden natural gas compressors, (g) two Ingersoll-Rand feedwater pumping systems, (h) an emission control system, (i) a fuel supply system, (j) water and steam systems, (k) an electrical system, (l) a turbine-generator fire suppression system and (m) various other support systems, control equipment, wiring and piping, together with any and all components attached thereto, installed thereon or incorporated therein, or otherwise belonging thereto, excluding all land, building, foundations, footings, concrete pads or similar supports, above-grade concrete structures which are an integral part of the foundations, concrete floors, paving, roads, trenches, sumps, earthen dams, below-grade concrete pits, underground piping, sewers and drains and grounding.

21 EXHIBIT B TO BILL OF SALE AND ASSIGNMENT SITE DESCRIPTION That certain portion of the east half of the northeast quarter of Section 33, Township 12 North, Range 24 West, San Bernardino Meridian, in the unincorporated area of Kern County, California, described as Parcel 1 of Parcel Map No. 8297, as per map recorded in the Office of the County Recorder of Kern County on January 20, 1989, in Book 37 of Parcel Maps, at pages 134 and 135.

22 BERRY PETROLEUM COMPANY 28700 Hovey Hills Road P.O. Bin X Taft, CA 93268 STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED TRANSFER, OR CONVEYANCE FROM: [Name of Grantee(s) or Lessee(s)] TO: [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: Amounts to: $ Amounts to: $ ( ) Unincorporated Area ( ) City of ( ) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value and encumbrances remaining LESS liens and encumbrances remaining Documentary Transfer Tax $ Computed on full value of property conveyed

23 Berry Petroleum Company By: Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: By: Title : AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

24 EXHIBIT C TO THE RIGHT TO PURCHASE CONTRACT RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 A.P.N. 220-181-17-00-4 220-181-18-00-7 220-191-03-00-6 QUITCLAIM DEED FOR A VALUABLE CONSIDERATION, receipt of which is hereby acknowledged, Security Pacific Leasing Corporation, a Delaware corporation ("SPLC"), hereby REMISES, RELEASES, AND FOREVER QUITCLAIMS to Berry Petroleum Company, a Delaware corporation, any right, title and interest SPLC may have in the property described in Exhibit A attached hereto and by this reference made a part hereof. Any property conveyed hereby is conveyed "as is" and "where is" and SPLC makes no representations or warranties, express or implied, with respect thereto or with respect to its right, title and interest therein or with respect to the value, merchantability, compliance with specifications, condition, design, operation, freedom from patent or trademark infringement, absence of latent defects, suitability or fitness for a particular purpose or fitness for use of the plant or any part thereof, or any other representation or warranty whatsoever, express or implied, with respect to such property or any part thereof. Dated: SECURITY PACIFIC LEASING CORPORATION a Delaware corporation By: Philip H. Benner, Vice President

25 STATE OF CALIFORNIA } } COUNTY OF ___________ } On ________________, before me, ______________________, Notary Public, personally appeared ___________________, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name{s} {is/are} subscribed to the within instrument and acknowledged to me that {he/she/they} executed the same in {his/her/their} authorized capacity{y/ies}, and that by {his/her/their} signature{s} on the instrument the person{s}, or the entity upon behalf of which the person{s} acted, executed the instrument. WITNESS my hand and official seal. ________________________________

26 EXHIBIT A TO QUITCLAIM DEED 1. Premises Lease dated as of August 15, 1994, between the persons listed in Exhibit "A" as Premises Lessor, and Security Pacific Leasing Corporation as Premises Lessee, recorded in Book 7079, page 2007, Kern County Recorded on August 26, 1994, document number 127331. 2. Right of Way dated August 23, 1994, between Tannehill Oil Company, Inc., a California corporation, Grantor, and Security Pacific Leasing Corporation, Grantee, recorded in Book 7079, page 2110, Kern County Recorder on August 26, 1994, document number 127333. 3. Right of Way, Right of Use, Right to Discharge and Right of Encroachment, dated August 23, 1994, between the persons and entities listed in Exhibit "A" thereof, collectively Grantor, and Security Pacific Leasing Corporation, Grantee, recorded in Book 7079, page 2077, Kern County Recorder, on August 26, 1994, document number 127332. 4. The following described real property in the County of Kern, State of California: PARCEL 1: That certain portion of the East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., described as Parcel 1 of Parcel Map 8297 in the unincorporated area of the County of Kern, State of California, as per Map recorded January 20, 1989 in Book 37, pages 134 and 135 of Parcel Maps, in the Office of the County Recorder of said County. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11, 1902. PARCEL 2: The East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General.

27 EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11, 1902. EXCEPTING therefrom a portion of said land now known as Parcel 1 of Parcel Map no. 8297 recorded January 20, 1989 in Book 37, page 134 and 135 of Parcel Maps. PARCEL 3: The Northwest quarter of the Northwest quarter of Section 34, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above-described which may have been discovered or known to exist on or prior to May 13, 1901. 5. The following described real property in the County of Kern, State of California: PARCEL 1: The North half of the Southwest quarter and the Southeast quarter of the Southwest quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known prior to November 1, 1901. PARCEL 2: The Southeast quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the City of Taft, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known before June 10, 1910.

28 PARCEL 3: The Northeast quarter of Section 32, Township 32 South, Range 24 East, M.D.B.M., in the City of Taft, State of California, as per the official plat thereof on file in the Office of the Surveyor General. Excepting therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land described above which may have been discovered or known prior to October 26, 1910. 6. Any right, title or interest, as security or outright, of Security Pacific Leasing Corporation, a Delaware corporation, in any property conveyed to Security Pacific Leasing Corporation by, under or pursuant to that certain Participation Agreement dated as of August 15, 1994, among Tannehill Electric Company, Inc., as Lessee, Tannehill Oil Company, as Guarantor, the persons listed in Annex II thereto, as Guarantors and Premises Lessors, and Security Pacific Leasing Corporation, as Lessor. 7. Any right, title or interest of Security Pacific Leasing Corporation, a Delaware corporation, under that certain Cogeneration Facility Lease between Security Pacific Leasing Corporation and Tannehill Electric Company, Inc., dated August 15, 1994, and Lease Supplement #1, dated August 26, 1994, relating to the above-described real property described as Parcel 1 in paragraph 4 above; EXCEPT, however, that the indemnity obligations of Tannehill Electric Company, Inc. under Sections 11, 16 and 17 of said Cogeneration Facility Lease, shall continue in full force and effect, notwithstanding the Quitclaim Deed to which this Exhibit A is attached, or the termination of said Cogeneration Facility Lease.

29 BERRY PETROLEUM COMPANY 28700 Hovey Hills Road P.O. Bin X Taft, CA 93268 STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: [Name of Grantee(s) or Lessee(s)] TO: [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: Amounts to: $ Amounts to: $ ( ) Unincorporated Area ( ) City of ( ) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining liens and encumbrances remaining Documentary Transfer Tax $ Computed on full value of property conveyed

30 Berry Petroleum Company By: Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: By: Title : AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

31 EXHIBIT D TO RIGHT TO PURCHASE CONTRACT TERMINATION AND RELEASE OF SECURITY INTERESTS This Termination and Release of Security Interests (this "Agreement"), is dated as of November _____, 1996, between Tannehill Electric Company, Inc., a California corporation ("TEC"), Tannehill Oil Company, a California general partnership ("TOC"), and Security Pacific Leasing Corporation, a Delaware corporation ("SPLC"). RECITALS A. TEC and SPLC entered into a Security Agreement ("TEC Security Agreement") as of August 15, 1994, by which TEC granted SPLC a security interest, among other things, in agreements with Pacific Gas & Electric Company ("PG&E") and Solar Turbines Incorporated ("Solar"), respectively, described in Exhibit A and Exhibit B attached hereto ("Exhibit A Agreements" and "Exhibit B Agreement," respectively). B. TEC, SPLC and PG&E entered into a Consent to Assignment and Agreement dated as of August 15, 1994, in which PG&E, among other things, consented to the assignment of a security interest to SPLC in the Exhibit A Agreements. C. TEC, SPLC and Solar entered into a Consent to Assignment of Contract Rights dated as of August 25, 1994, in which Solar, among other things, consented to the assignment of a security interest to SPLC in the Exhibit B Agreement. D. TOC and SPLC entered into a Security Agreement ("TOC Security Agreement") as of August 15, 1994, by which TOC granted SPLC a security interest in certain Collateral therein described; TOC and SPLC entered into a Pledge Account Security Agreement ("Pledge Agreement") as of August 15, 1994, by which TOC granted SPLC a security interest in all money on deposit in a certain Pledged Account; and certain individuals and entities ("Pledgors") and SPLC entered into a Stock Pledge Agreement ("Stock Agreement") as of August 15, 1994, by which each of the Pledgors pledged and delivered to SPLC all of their stock of TEC (the "Pledged Stock"). E. SPLC, TEC and Berry Petroleum Company, a Delaware corporation ("Berry"), have entered into a Right to Purchase Contract, dated November 8, 1996, by which SPLC has granted TEC the right to purchase the Facility (the "Cogeneration Facility") which is the subject of the Exhibit "A" Agreements, and TEC has assigned such right to Berry. The parties intend by this Agreement to provide for release by SPLC of its security interests in the collateral under the TEC Security Agreement, the TOC Security Agreement, the Pledge Agreement and the Stock Agreement, including, without limitation, the security interests in the Exhibit A Agreements, the Exhibit B Agreement, the Pledged Account and the Pledged Stock (collectively, the "Security Interests"), effective upon SPLC's delivery of title to the Facility to Berry ("Title Delivery").

32 NOW THEREFORE, the parties hereto agree as follows: 1. Effective upon Title Delivery: a. The Security Interests are hereby terminated and all security interests of SPLC thereunder, and the other collateral therein, are hereby released. b. SPLC quitclaims any remaining interest it has in the Exhibit A Agreements and Exhibit B Agreement to Berry. c. SPLC and TEC shall give PG&E and Solar written notice of termination of the Security Interests in the Exhibit A Agreements and Exhibit B Agreement, with proof of service (i.e., affidavit) to Berry and shall provide Berry with the original signed acknowledgments from PG&E and Solar, with copies to SPLC, when available . 2. This Agreement shall be governed by and construed in accordance with the law of California. 3. This Agreement may be executed in any number of counterparts, all of which together shall constitute a single instrument, and it shall not be necessary that any counterpart be signed by all of the parties hereto. WHEREOF, the undersigned caused this Agreement to be duly executed as of the day and year first above written. TANNEHILL ELECTRIC COMPANY, INC. a California corporation By: Albert G. Boyce, Jr. President TANNEHILL OIL COMPANY, a California general partnership By: Boyce Resource Development Company, its Managing General Partner By: Albert G. Boyce, Jr. President

33 By: Paso Energy, Inc., its Managing General Partner By: John W. Tannehill President By: HHB, Inc., its Managing General Partner By: James L. Hinkle President Address: Tannehill Electric Company, Inc. and Tannehill Oil Company c/o Boyce Resource Development Co. 120 Manteca Avenue Manteca, California 95336 Attn: Albert G. Boyce, Jr. Telecopy: (209) 239-7886 SECURITY PACIFIC LEASING CORPORATION a Delaware corporation By: Philip H. Benner Vice President Address: Security Pacific Leasing Corporation 555 California Street, 4th Floor San Francisco, California 94104 Attn: Contract Administrator Telecopy: (415) 765-7373

34 EXHIBIT A TO TERMINATION AND RELEASE OF SECURITY INTERESTS (1) The California Public Utilities Commission Standard Offer #2 Power Purchase Agreement for Firm Capacity and Energy between Solar Turbines Incorporated ("Solar") and Pacific Gas and Electric Company ("PG&E"), executed by Solar on November 14, 1985, and by PG&E on November 20, 1985, and assigned by Solar to Monarch Cogeneration 1986-1, a California Limited Partnership ("Monarch"), effective upon PG&E's consent thereto executed by PG&E on February 13, 1987; which agreement was further assigned by Monarch to Tannehill Electric Company, Inc., a California corporation ("TEC"), effective upon PG&E's consent thereto executed by PG&E on August 25, 1994. (2) The Agreement for Installation or Allocation of Special Facilities executed by PG&E on September 17, 1986, and assigned by Solar to Monarch, effective on PG&E's consent thereto executed by PG&E on February 13, 1987; which agreement was further assigned by Monarch to TEC, effective upon PG&E's consent thereto executed by PG&E on August 25, 1994.

35 EXHIBIT B TO TERMINATION AND RELEASE OF SECURITY INTERESTS Operation and Maintenance Agreement dated as of August 15, 1994, between Solar and TEC.

36 STATE OF CALIFORNIA UNIFORM COMMERCIAL CODE - FINANCING STATEMENT CHANGE - FORM UCC-2 IMPORTANT - Read instructions on back before completing form EXHIBIT E-1 This STATEMENT is presented for filing pursuant to the California Uniform Commercial Code 1. File No.of Orig. Fin. Stmt. 1A. Date of Filing of Orig. Fin. Stmt. 94175339 8/29/94 1B. Date of Orig. Fin. Stmt. 1C. Place of Filing Orig. Fin. Stmt. 8/25/94 Secretary of State Office 2. Debtor (Last Name First) 2A. Social Security or Federal Tax No. Tannehill Electric Company, Inc. 2B. Mailing Address 2C. City, State 2D. Zip Code 120 Manteca Avenue/P.0. Box 871 Manteca, California 95336 3. Additional Debtor (if any)(Last Name First) 3A. Social Security or Federal Tax No. 3B. Mailing Address 3C. City, State 3D. Zip Code 4. Secured Party Name Security Pacific Leasing Corporation Mailing Address 555 California Street, 4th Floor City San Francisco State California Zip Code 94104 4A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 5. Assignee of Secured Party (if any) Name Mailing Address City State Zip Code 5A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 6. A ( ) Continuation - The original Financing Statement between the foregoing Debtor and Secured Party bearing the file number and date shown above is continued. If collateral is crops or timber, check here and insert description of real property on which growing or to be grown in Item 7 below. B (X) Release - From the collateral described in the Financing Statement bearing the file number shown above, the Secured Party releases the collateral described in Item 7 below. C ( ) Assignment - The Secured Party certifies that the Secured Party has assigned to the Assignee above named, all the Secured Party's rights under the Financing Statement bearing the file number shown above in the collateral described in item 7 below. D ( ) Termination - The Secured Party certifies that the Secured Party no longer claims a security interest under the Financing Statement bearing the file number shown above. E ( ) Amendment - The Financing Statement bearing the file number shown above is amended as set forth in Item 7 below. (Signature of debtor required on all amendments.) F ( ) Other - 7. Any and all collateral described in the Financing Statement bearing the file number shown above. 8. C 9. This space for O use of Filing (Date)November 1996 D Officer (Date, E Time, Filing Office) 1 By: Signature of Debtor(s) (Title) 2 3 4 By: Signature(s) of Secured Party(ies) (Title) 5 6 10. Return Copy To 7 8 Name Address 9 City, State and Zip

37 STATE OF CALIFORNIA UNIFORM COMMERCIAL CODE - FINANCING STATEMENT CHANGE - FORM UCC-2 IMPORTANT - Read instructions on back before completing form EXHIBIT E-2 This STATEMENT is presented for filing pursuant to the California Uniform Commercial Code 1. File No.of Orig. Fin. Stmt. 1A. Date of Filing of Orig. Fin. Stmt. 94175364 8/29/94 1B. Date of Orig. Fin. Stmt. 1C. Place of Filing Orig. Fin. Stmt. 8/25/94 Secretary of State Office 2. Debtor (Last Name First) 2A. Social Security or Federal Tax No. Tannehill Electric Company, Inc. 2B. Mailing Address 2C. City, State 2D. Zip Code 120 Manteca Avenue/P.0. Box 871 Manteca, California 95336 3. Additional Debtor (if any)(Last Name First) 3A. Social Security or Federal Tax No. 3B. Mailing Address 3C. City, State 3D. Zip Code 4. Secured Party Name Security Pacific Leasing Corporation Mailing Address 555 California Street, 4th Floor City San Francisco State California Zip Code 94104 4A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 5. Assignee of Secured Party (if any) Name Mailing Address City State Zip Code 5A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 6. A ( ) Continuation - The original Financing Statement between the foregoing Debtor and Secured Party bearing the file number and date shown above is continued. If collateral is crops or timber, check here and insert description of real property on which growing or to be grown in Item 7 below. B (X) Release - From the collateral described in the Financing Statement bearing the file number shown above, the Secured Party releases the collateral described in Item 7 below. C ( ) Assignment - The Secured Party certifies that the Secured Party has assigned to the Assignee above named, all the Secured Party's rights under the Financing Statement bearing the file number shown above in the collateral described in item 7 below. D ( ) Termination - The Secured Party certifies that the Secured Party no longer claims a security interest under the Financing Statement bearing the file number shown above. E ( ) Amendment - The Financing Statement bearing the file number shown above is amended as set forth in Item 7 below. (Signature of debtor required on all amendments.) F ( ) Other - 7. Any and all collateral described in the Financing Statement bearing the file number shown above. 8. C 9. This space for O use of Filing (Date)November 1996 D Officer (Date, E Time, Filing Office) 1 By: Signature of Debtor(s) (Title) 2 3 4 By: Signature(s) of Secured Party(ies) (Title) 5 6 10. Return Copy To 7 8 Name Address 9 City, State and Zip

38 STATE OF CALIFORNIA UNIFORM COMMERCIAL CODE - FINANCING STATEMENT CHANGE - FORM UCC-2 IMPORTANT - Read instructions on back before completing form EXHIBIT E-3 This STATEMENT is presented for filing pursuant to the California Uniform Commercial Code 1. File No.of Orig. Fin. Stmt. 1A. Date of Filing of Orig. Fin. Stmt. 94175348 8/29/94 1B. Date of Orig. Fin. Stmt. 1C. Place of Filing Orig. Fin. Stmt. 8/25/94 Secretary of State Office 2. Debtor (Last Name First) 2A. Social Security or Federal Tax No. Tannehill Oil Company 2B. Mailing Address 2C. City, State 2D. Zip Code 120 Manteca Avenue/P.0. Box 871 Manteca, California 95336 3. Additional Debtor (if any)(Last Name First) 3A. Social Security or Federal Tax No. 3B. Mailing Address 3C. City, State 3D. Zip Code 4. Secured Party Name Security Pacific Leasing Corporation Mailing Address 555 California Street, 4th Floor City San Francisco State California Zip Code 94104 4A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 5. Assignee of Secured Party (if any) Name Mailing Address City State Zip Code 5A. Social Security No., Federal Tax No. or Bank Transit and A.B.A. No. 6. A ( ) Continuation - The original Financing Statement between the foregoing Debtor and Secured Party bearing the file number and date shown above is continued. If collateral is crops or timber, check here and insert description of real property on which growing or to be grown in Item 7 below. B (X) Release - From the collateral described in the Financing Statement bearing the file number shown above, the Secured Party releases the collateral described in Item 7 below. C ( ) Assignment - The Secured Party certifies that the Secured Party has assigned to the Assignee above named, all the Secured Party's rights under the Financing Statement bearing the file number shown above in the collateral described in item 7 below. D ( ) Termination - The Secured Party certifies that the Secured Party no longer claims a security interest under the Financing Statement bearing the file number shown above. E ( ) Amendment - The Financing Statement bearing the file number shown above is amended as set forth in Item 7 below. (Signature of debtor required on all amendments.) F ( ) Other - 7. Any and all collateral described in the Financing Statement bearing the file number shown above. 8. C 9. This space for O use of Filing (Date)November 1996 D Officer (Date, E Time, Filing Office) 1 By: Signature of Debtor(s) (Title) 2 3 4 By: Signature(s) of Secured Party(ies) (Title) 5 6 10. Return Copy To 7 8 Name Address 9 City, State and Zip

1 EXHIBIT 2A TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-181-17-00-4 220-181-24-00-4 220-181-18-00-7 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment") dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL ELECTRIC COMPANY, INC., a California corporation ("Assignor"), whose address is 120 Manteca Avenue, Post Office Box 871, Manteca, California 95336, to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. a. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and Tannehill Electric Company, Inc. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule A to this Assignment (hereinafter collectively called and referred to as the "Cogeneration Assets") and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Cogeneration Assets.

2 b. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Cogeneration Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. c. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Cogeneration Assets conveyed hereby or intended so to be. d. Schedule. Reference is made to Schedule A attached hereto and made a part hereof for all purposes. Reference in such Schedule A to instruments on file or recorded in the public records are made for all purposes. e. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. f. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. g. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. h. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedule A that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with a complete Schedule A. Another counterpart of this Assignment with a complete Schedule A shall be recorded in the official real property records of Kern County, California.

3 i. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL ELECTRIC COMPANY, INC., BERRY PETROLEUM COMPANY, a California corporation a Delaware corporation By: __________________________ By: ______________________________ Albert G. Boyce, Jr., President Jerry V. Hoffman, President and Chief Executive Officer By: __________________________ By: ______________________________ John W. Tannehill, Secretary Kenneth A. Olson, Secretary "Assignor" "Assignee"

4 STATE OF CALIFORNIA ) ) COUNTY OF ____________ ) On _______________, 1996, before me, _____________________, Notary Public, personally appeared Albert G. Boyce, Jr., personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. ________________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, ______________________, Notary Public, personally appeared John W. Tannehill, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. __________________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, ______________________, Notary Public, personally appeared Jerry V. Hoffman and Kenneth A. Olson, personally known to me (or proved to me on the basis of satisfactory evidence) to be the persons whose names are subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacity, and that by their signatures on the instrument the persons, or the entities upon behalf of which the persons acted, executed the instrument. WITNESS my hand and official seal. __________________________________

5 SCHEDULE A TO EXHIBIT 2A ASSIGNMENT OF RIGHTS OF WAY, EASEMENTS AND CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. (Unrecorded Documents) 1. PG&E S.O. #2 Contract between Solar, signed November 15, 1985, and Pacific Gas & Electric Company, signed November 20, 1985; and assigned by Solar to Monarch Cogeneration 1986-1, and further assigned by Monarch to Tannehill Electric Company, Inc., and Security Pacific, effective by PG&E's consent on August 25, 1994. 2. Operation & Maintenance Agreement between Solar Turbines Incorporated and Tannehill Electric Company, Inc., dated August 15, 1994. 3. Right to Purchase Contract, dated November 8, 1996, by and among Tannehill Electric Company, Berry Petroleum Company and Security Pacific Leasing Corporation and all Exhibits thereto.

1 EXHIBIT 2B TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-181-17-00-4 220-181-24-00-4 220-181-18-00-7 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment") dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL ELECTRIC COMPANY, INC., a California corporation ("Assignor"), whose address is 120 Manteca Avenue, Post Office Box 871, Manteca, California 95336, to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. j. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and Tannehill Electric Company, Inc. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule A to this Assignment (hereinafter collectively called and referred to as the "Cogeneration Assets") and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Cogeneration Assets.

2 k. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Cogeneration Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. l. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Cogeneration Assets conveyed hereby or intended so to be. m. Schedule. Reference is made to Schedule A attached hereto and made a part hereof for all purposes. Reference in such Schedule A to instruments on file or recorded in the public records are made for all purposes. n. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. o. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. p. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. q. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedule A that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with a complete Schedule A. Another counterpart of this Assignment with a complete Schedule A shall be recorded in the official real property records of Kern County, California.

3 r. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL ELECTRIC COMPANY, INC., BERRY PETROLEUM COMPANY, a California corporation a Delaware corporation By: ____________________________ By: ______________________________ Albert G. Boyce, Jr., President Jerry V. Hoffman, President and Chief Executive Officer By: ____________________________ By: ______________________________ John W. Tannehill, Secretary Kenneth A. Olson, Secretary "Assignor" "Assignee"

4 STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, ______________________, Notary Public, personally appeared Albert G. Boyce, Jr., personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _______________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, _______________________, Notary Public, personally appeared John W. Tannehill, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person whose name is subscribed to the within instrument and acknowledged to me that he executed the same in his authorized capacity, and that by his signature on the instrument the person, or the entity upon behalf of which the person acted, executed the instrument. WITNESS my hand and official seal. _______________________________ STATE OF CALIFORNIA ) ) COUNTY OF _____________ ) On ________________, 1996, before me, ______________________, Notary Public, personally appeared Jerry V. Hoffman and Kenneth A. Olson, personally known to me (or proved to me on the basis of satisfactory evidence) to be the persons whose names are subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacity, and that by their signatures on the instrument the persons, or the entities upon behalf of which the persons acted, executed the instrument. WITNESS my hand and official seal. _______________________________

5 SCHEDULE A TO EXHIBIT 2B ASSIGNMENT OF RIGHTS OF WAY, EASEMENTS AND CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. (Recorded Documents) 1. Cogeneration Facility Lease between Security Pacific Leasing Corporation and Tannehill Electric Company, dated August 15, 1994, and Lease Supplement #1, dated August 26, 1994, relating to the following described real property: That certain portion of the East half of the Northeast quarter of Section 33, Township 12, North, Range 24 West, S.B.B.M., described as Parcel 1 of Parcel Map 8297 in the unincorporated area of the County of Kern, State of California, as per Map recorded January 20, 1989 in Book 37, pages 134 and 135 of Parcel Maps, in the Office of the County Recorder of said County. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist prior to November 11, 1902.

6 STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: Kern County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: Tannehill Electric Company, Inc. [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T12N, R24W, Section 33; APNs 220-181-17-00-4; 220-181-24-00-4; 220-181-18-00-7 Amounts to: $________________ Amounts to: $________________ (X) Unincorporated Area ( ) City of ___________________ ( ) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining liens and encumbrances remaining Documentary Transfer Tax $____________ Computed on full value of property conveyed Tannehill Electric Company, Inc. By: _________________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: _____________________________ By:__________________________ Title: ______________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

EXHIBIT 3 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. ALLOCATION OF PURCHASE PRICE The parties agree to the allocation of purchase price as represented on IRS Form 8594 attached hereto.

1 FORM 8594 ASSET ACQUISITION STATEMENT OMB No. 1545-1021 (Rev Jan 1996) UNDER SECTION 1060 Department of the Treasury Attachment Internal Revenue Service Sequence No. 61 Attach to your Federal income tax return Name as Shown on return Identification number as shown on return Tannehill Electric Company, Inc. 77-0377799 Check the box that identifies you Buyer (X) Seller Part 1 General Information - to be completed by all filers. 1. Name of other party to the transaction Berry Petroleum Company Other party's identification number 77-0079387 Address (number, street, and room or suite no.) 28700 Hovey Hills Road, P.O. Bin X Taft, California 93268 2. Date of Sale 3. Total sales price October 1, 1996 $200,000 Part II Assets Transferred - to be completed by all filers of an original statement 4. Assets Aggregate Fair Market Value Allocation of Sales price (Actual Amount for Class I) Class I $ $ Class II $ $ Class III $ $ 200,000 Class IV $ $ Total $ $ 200,000 5. Did the buyer and seller provide for an allocation of the sales price in the sales contract or in another written document signed by both parties? (X) Yes No If Yes, are the aggregate fair market values listed for each of asset Classes I, II, III and IV the amounts agreed upon in your sales contract or in a separate written document? (X) Yes No 6. In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to complete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes (X) No If Yes, specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. For Paperwork Reduction Act Notice, see instructions. Cat. No. 63768Z Form 8592 (Rev. 1-96)

2 [THIS PAGE INTENTIALLY BLANK] 2/19/96 Published by Tax Management Inc., a subsidiary of The Bureau of National Affairs, Inc. 8594.I

1 Form 8594 Asset Acquisition Statement OMB No 1545-1021 (Rev January 1993) Under Section 1060 Expires 2-29-96 Department of the Treasury Internal Revenue Service Attachment Attach to your Federal income tax return Sequence No 61 Name as shown on return Identification number as shown on return Berry Petroleum Company 77-0079387 Check the box that identifies you X Buyer Seller Part I General Information - to be completed by filers 1 Name of other party to the transaction Tannehill Electric Company, Inc. Other party's identification number 77-0377799 Address (number, street, and room or suite no.) P.O. Box 871 City, State, and Zip Code Manteca, California 95336 2 Date of Sale 3 Total Sales Price 10/1/96 $200,000 Part II Assets Transferred - to be completed by all filers of an original statement 4 Assets Aggregate Fair Market Value Allocation of Sales Price (Actual Amount for Class 1) Class I $ $ Class II $ $ Class III $ $ 200,000 Class IV $ Total $ 200,000 5 Did the buyer and seller provide for an allocation of the sales price in the sales contrct or in another written document signed by both parties? X Yes No If "yes," are the aggregate fair market values listed for each of asset Classes I, II, and III the amounts agreed upon in your sales contract or in a separate written document? X Yes No 6 In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to compete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes X No If "yes," specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. Form 8594 (Rev. 1-96) Page 2

2 Part III Class III, Intangible Amortizable Assets Only - Complete if applicable. The amounts shown below also must be included under Class III assets in Part II. Attach additional sheets if more space is needed. Assets Fair Market Value Useful Life Allocation of Sales Price Contracts $ 200,000 5 $ 200,000 $ $ $ $ $ $ $ $ $ $ Part IV Supplemental Statement - To be completed only if amending an original statement or previously filed supplemental statement because of anincrease or decrease in consideration N/A 7. Assets Allocation of Sales Price Increase or Redetermined Allocation as Previously Reported (Decrease) of Sales Price Class I $ $ $ Class II $ $ $ Class III $ $ $ Class IV $ $ $ Totals $ $ 8. Reason(s) for increase or decrease. Attach additional sheets if more space is needed. 9. Tax year and tax return form number with which the original form 8594 and any supplemental statements were filed.

1 EXHIBIT 4 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. CERTIFICATE OF SATISFACTION TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL ELECTRIC COMPANY, INC. AND BERRY PETROLEUM COMPANY ON NOVEMBER 8, 1996 (PARAGRAPH 2.10(e) THEREOF) The undersigned parties to that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Electric Company, Inc., to be entered into on this 8th day of November, 1996, declare that all conditions to the Closing have been satisfied and the transaction is Closed. BERRY PETROLEUM COMPANY, TANNEHILL ELECTRIC COMPANY, INC., a Delaware corporation a California corporation By: _______________________ By: _______________________________ Jerry V. Hoffman, President Albert G. Boyce, Jr., President and Chief Executive Officer By: __________________________ By: _______________________________ Kenneth A. Olson, Secretary John W. Tannehill, Secretary

1 EXHIBIT 5 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. ESCROW INSTRUCTIONS FIRST AMERICAN TITLE INSURANCE COMPANY MAIN OFFICE: 4540 CALIFORNIA AVENUE, SUITE 100 (93309) MAILING ADDRESS: P.O. BOX 1945, BAKERSFIELD, CA 93303 TELEPHONE (805) 327-5311 FACSIMILE (805) 327-8533 E S C R O W I N S T R U C T I O N S FIRST AMERICAN TITLE INSURANCE COMPANY CONDUCTS ESCROW BUSINESS UNDER CERTIFICATE OF AUTHORITY NO. 2787 ISSUED BY THE STATE OF CALIFORNIA DEPARTMENT OF INSURANCE. FINAL DRAFT Escrow Officer: NANCY J. SMITH Property: COGENERATION ASSETS, TAFT, CA Escrow Number: 1128320N Date: November 4, 1996 To:FIRST AMERICAN TITLE INSURANCE COMPANY THESE INSTRUCTIONS ARE ENTERED INTO PURSUANT TO THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED WHEN EXECUTED BY BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. A COPY OF WHICH IS ATTACHED HERETO. AS ESCROW HOLDER YOU SHALL\ BE CONCERNED ONLY WITH THOSE SPECIFIC PROVISIONS OF SAID CONTRACT SET FORTH AND ENUMERATED THEREIN AS FOLLOWS: #1.6, #1.13, #2.1, #2.2, #2.3, #2.5, #2.6 CLARIFICATION: DISTRIBUTION OF SALE PROCEEDS AND RECORDATION OF DOCUMENTS WITH KERN COUNTY RECORDER WILL BE HANDLED AT THE OFFICE OF ESCROW HOLDER, FIRST AMERICAN TITLE INSURANCE COMPANY, 4540 CALIFORNIA #100, BAKERSFIELD, CA. 93309. THIS ESCROW TO CLOSE CONCURRENTLY WITH ESCROWS #1128321N AND #1125444N, #2.7 AND #2.8 CLARIFICATION: PARTIES TO SUPPLY ESCROW HOLDER WITH INFORMATION SO PRORATIONS CAN BE HANDLED THROUGH ESCROW OR NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT PRORATIONS WILL BE HANDLED OUTSIDE OF THIS ESCROW; #2.10 CLARIFICATION: DOCUMENTS TO BE DEPOSITED INTO ESCROW OR PARTIES TO NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT SAID DOCUMENTS HAVE BEEN DELIVERED OUTSIDE OF ESCROW, #2.12, ARTICLES VII AND VIII, DOCUMENTS WILL BE DEPOSITED AND APPROVED BY COUNSEL PRIOR TO CLOSE OF ESCROW. ALL PARTIES AGREE THAT TRANSFER OF SAID PROPERTY IS NOT BEING HANDLED THROUGH THE BULK SALE PROCESS. ESCROW HOLDER WILL NOT CONDUCT ANY UCC SEARCHES. NO TITLE INSURANCE OR GUARANTEES OF TITLE WILL BE ISSUED BY ESCROW HOLDER WITH REGARD TO PROPERTY BEING TRANSFERRED IN THIS ESCROW.

1A ANY AND ALL OTHER PROVISIONS OF SAID CONTRACT NOT ENUMERATED ABOVE IMPOSE NO DUTIES ON YOU AS ESCROW HOLDER AND ARE MATTERS OF AGREEMENT AND UNDERSTANDING BETWEEN THE PARTIES WITH WHICH YOU SHALL NOT BE CONCERNED. THE ATTACHED GENERAL PROVISIONS AND PAGE #1B ARE HEREBY MADE A PART OF THESE INSTRUCTIONS. TANNEHILL ELECTRIC COMPANY, INC BY: ITS: BERRY PETROLEUM COMPANY BY: ITS:

1B ESCROW INSTRUCTIONS - PAGE 1B Escrow Number: 1128320N NOTICE OF TAX REPORTING AND WITHHOLDING OBLIGATIONS OF THE PARTIES: State Law In accordance with Sections 18805 and 26131 of the Revenue and Taxation Code, a buyer may be required to withhold an amount equal to three and one-third percent of the sales price in the case of the disposition of California real property interest by either: 1. A seller who is an individual with a last known street address outside of California or when the disbursement instructions authorize the proceeds be sent to a financial intermediary of the seller, OR 2. A corporate seller which has no permanent place of business in California. The buyer may become subject to penalty for failure to withhold an amount equal to the greater of 10 percent of the amount required to be withheld or five hundred dollars ($500). However, notwithstanding any other provision included in the California statutes referenced above, no buyer will be required to withhold any amount or be subject to penalty for failure to withhold if: 1. The sales price of the California real property conveyed does not exceed one hundred thousand dollars ($100,000), OR 2. The seller executes a written certificate, under the penalty of perjury,certifying that the seller is a resident of California, or if a corporation, has a permanent place of business in California, OR 3. The seller, who is an individual, executes a written certificate, under the penalty of perjury, that the California real property being conveyed is the seller's principal residence (as defined in Section 1034 of the Internal Revenue Code.The seller is subject to penalty for knowingly filing a fraudulent certificate for the purpose of avoiding the withholding requirement. The California statues referenced above include provisions which authorize the Franchise Tax Board to grant reduced withholding and waivers from withholding on a case-by-case basis. The parties to this transaction should seek an attorney's, accountant's, or other tax specialists's opinion concerning the effect of this law on this transaction and should not act on any statements made or omitted by the escrow or closing officer.

2B Federal Law:See Item #16 of General Provisions Federal 1099 Reporting for Resident Seller The parties acknowledge that First American Title has an obligation to provide information from this transaction to the Internal Revenue Service at the close of the escrow. This information includes, but is not limited to, the taxpayer identification and/or social security number(s) of the seller(s) and the gross sales price. First American Title can not authorize the recording and closing of this transaction without receipt of information deemed adequate by First American Title for complying with the IRS reporting requirements. Failure to provide the requested information to escrow holder will result in a delay in closing. THE UNDERSIGNED HEREBY EXPRESSLY ACKNOWLEDGE RECEIPT OF THE ABOVE NOTICE. TANNEHILL ELECTIC COMPANY, INC BY: ITS: BERRY PETROLEUM COMPANY BY: ITS:

3B GENERAL PROVISIONS 1. Deposit of Funds & Disbursements You shall deposit all funds received in this escrow in any bank insured by an agency of the United States Government, including your affiliated bank, First American Trust Company, in one or more of your general escrow demand accounts. These funds may be transferred to any other general escrow demand account or accounts, in the above named bank or banks, including those maintained in your affiliated bank. All disbursements shall be made by your check. You are authorized not to close escrow or disburse until good funds have been confirmed in escrow. 2. Prorations and Adjustments The expression "close of escrow" used in this escrow means the date of which instruments referred to herein are recorded and relates only to prorations and/or adjustments unless otherwise specified. 3. Recordation of Instruments You are authorized to record any documents delivered through this escrow, the recording of which is necessary or proper in the issuance of the requested policy of title insurance. 4. Authorization to Execute Assignment of Insurance Policies You are to execute on behalf of the parties hereto form assignments of interest in any insurance policies (other than title insurance) called for in this escrow; forward assignments and policies upon close of escrow to the agent with the request, first, that insurer consent to such transfer and/or attach a loss payable clause and/or make such other additions or corrections as may have been specifically required herein, and second, that the agent there after forward such policies to the parties entitled to them. In all acts in this escrow relating to insurance, including adjustments, if any, you shall be fully protected in assuming that each policy is in force and that the necessary premium therefor has been paid. 5. Authorization to Furnish Copies You are to furnish a copy of these instructions, amendments thereto, closing statements and/or any other documents deposited in this escrow to the lender or lenders, the real estate broker or brokers and/or the attorney or attorneys involved in this transaction upon request of the lenders, brokers or attorneys. 6. Personal Property Taxes No examination or insurance as to the amount or payment of personal property taxes is required unless specifically requested. 7. Right of Cancellation Any party instructing you to cancel this escrow shall file notice of cancellation in your office, in writing. You shall within a reasonable time thereafter mail, by certified mail, one copy of the notice to each of the other parties at the addresses stated in this escrow. Unless written objection to cancellation is filed in your office by a party within ten (10)days after date of mailing, you are authorized at your option to comply with the notice and demand payment of your cancellation charges as provided in this agreement. If written objection is filed, you are authorized at your option to hold all money and instruments in this escrow and take no further action until otherwise directed, either by the parties' mutual written instructions, or final order of

4B a court of competent jurisdiction. 8. Action in Interpleader The parties hereto expressly agree that you, as escrow holder, have the absolute right at your election to file an action in interpleader requiring the parties to answer and litigate their several claims and rights among themselves and you are authorized to deposit with the clerk of the court all documents and funds held in this escrow. In the event such action is filed,the parties jointly and severally agree to pay your cancellation charges and costs, expenses and reasonable attorney's fees which you are required to expend or incur in the interpleader action, the amount thereof to be fixed and judgment therefor to be rendered by the court. Upon the filing of the action, you shall thereupon be fully released and discharged from all obligations to further perform any duties or obligations otherwise imposed by the terms of this escrow. 9. Termination of Agency Obligations If there is no action taken on this escrow within six (6) months after the "time limit date" as set forth in the escrow instructions or written extension thereof, your agency obligation shall terminate at your option and all documents, monies or other items held by you shall be returned to the parties depositing same. If the event of cancellation of this escrow, whether it be at the request of any of the parties or otherwise, the fees and charges due First American Title Insurance Company, including expenditures incurred and/or authorized shall be borne equally by the parties hereto (unless otherwise agreed to specifically.) 10. Conflicting Instructions Should you before or after close of escrow receive or become aware of any conflicting demands or claims with respect to this escrow or the rights of any of the parties hereto, or any money or property deposited herein or affected hereby, you shall have the right to discontinue any or all further acts on your part until the conflict is resolved to your satisfaction, and you shall have the further right to commence or defend any action or proceedings for the determination of the conflict as provided in paragraphs 7 and 8 or these General Provisions. 11. Funds Retained in Escrow If for any reason funds are retained in escrow, you may deduct therefrom $10.00 as a monthly charge as custodian thereof. 12. Usury You are not to be concerned with any question of usury in any loan or encumbrances involved in the processing of the escrow and you are hereby released of any responsibility of liability therefor. 13. Indemnify for Attorneys Fees and Costs In the event suit is brought by any party to this escrow, including the title company or any other party, as against each other, or others,including the title company, claiming any right they may have as against each other or against the title company, then in that event, the parties hereto agree to indemnify and hold harmless the title company against any attorney's fees and costs incurred by it. 14. Amendments to Escrow Instructions Any Amendment or supplement to these escrow instructions must be in writing. These escrow instructions constitute the entire escrow between the escrow holder and the parties hereto.

5B 15. Supplemental taxes: Seller and Buyer acknowledge that the subject property may be subject to supplemental taxes due as a result of change of ownership taking place through this escrow. Any necessary adjustment due either party on receipt of a supplemental tax bill will be made by the parties outside of this escrow and escrow holder is released of any liability in connection with same. 16. Foreign Investment in Real Property Tax Act The Foreign Investment in Real Property Tax Act of 1980 as amended by the Tax Reform Act of 1984 places special requirements for tax reporting and withholding on the parties to a real estate transaction where the transferor(seller) is a non resident alien or non domestic corporation or partnership or is a domestic corporation or partnership controlled by non residents or non resident corporations or partnerships. The parties to this transaction are seeking an attorney's, accountant's, or other tax specialist's opinion concerning the effect of this Act on this transaction and are not acting on any statements made or omitted by the escrow or closing officer. (INITIAL HERE: ) 17. Preliminary change of Ownership form: Prior to close of escrow buyer will be sent a Preliminary Change of Ownership Report, which is required by the County Recorder's office to accompany documents called for herein at the time of recording, in accordance with Section 480.3 of the Revenue and Taxation Code. Buyer is aware he must return the form completed and signed prior to the close of escrow. If escrow holder does not receive this report prior to close of escrow, buyer authorizes escrow holder to charge his account the sum of$20.00 which is the fee the County Recorder charges for recording the Deed without the completed form. Buyer is hereby put on notice that the Assessor is required to mail out the form for completion later on if it has not been filed at close of escrow. 18. Good Funds Law: The parties understand that all funds to close escrow must be deposited sufficient number of days prior to the close of escrow in order to comply with Section 12413.1 of the California Insurance Code. Generally speaking,wire transferred funds may be deposited into our escrow account any time prior to the close of escrow. Cashier's checks and certified checks must be deposited into our escrow account the business day before the close of escrow. 19. Escrow Trust Funds: Buyer and seller acknowledge that escrow holder will be depositing all funds in escrow in a NON INTEREST bearing fiduciary account at one of the following banks: Union Bank. 20. Disclosure of Taxpayer Identification Numbers Internal Revenue Code Section 6109(h) imposes requirements for furnishing, disclosing, and including taxpayer identification numbers in tax returns on the parties to a residential real estate transaction involving seller provided financing. The parties understand that the disclosure reporting requirements are exclusive obligations between the parties to this transaction and that First American Title Insurance Company is not obligated to transmit the taxpayer identification numbers to the Internal Revenue Service or to the parties. First American Title Insurance Company is not rendering an opinion concerning the effect of this law on this transaction,and the parties are not acting on any statements made or omitted by the escrow or closing officer. To facilitate compliance with this law, the parties to this escrow hereby authorize First American Title Insurance Company to release any party's taxpayer identification number to any requesting party who is a party to this transaction. The requesting party shall deliver a written request to escrow. The parties hereto waive all rights of confidentiality regarding their respective taxpayer identification numbers and agree to hold First American Title Insurance Company harmless

6B against any fees, costs, or judgments incurred and/or awarded in connection with the release of taxpayer identification numbers.

1 EXHIBIT 6 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL ELECTRIC COMPANY, INC. AND BERRY PETROLEUM COMPANY ON NOVEMBER 8, 1996 (PARAGRAPH 7.6 THEREOF) The undersigned certify that Tannehill Electric Company, Inc., has complied with the matters set forth in Sections 7.1, 7.2, 7.3, and 7.4 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Electric Company, Inc., entered into on November 8, 1996. Date: _____________, 1996 TANNEHILL ELECTRIC COMPANY, INC., a California corporation By: ______________________________ Albert G. Boyce, Jr. President By: ______________________________ John W. Tannehill, Secretary

1 EXHIBIT 7A TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. FORM OF OPINION OF COUNSEL TO TANNEHILL ELECTRIC COMPANY, INC. November ___, 1996 Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, CA 93268 Re: Berry Petroleum Company / Tannehill Electric Company, Inc. Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Tannehill Electric Company, Inc., a California corporation ("Tannehill"), in connection with the purchase of substantially all the assets of Tannehill by Berry Petroleum Company, a Delaware corporation ("Berry"), pursuant to that certain Purchase and Sale Agreement, dated November 8, 1996, by and between Tannehill and Berry (the "Agreement"). Capitalized terms used in this letter without definition have the meanings given such terms in the Agreement. In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Berry. Based on the foregoing, and in reliance thereon, but subject to the qualifications herein set forth, we are of the opinion that: 1. Tannehill is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of California and is in good standing under such laws. Tannehill has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Tannehill has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 3. All corporate action on the part of Tannehill and its directors and shareholders necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby, has been taken. The Agreement has

2 been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. The individuals and entities executing the Agreement as shareholders of Tannehill are the beneficial owners of all the issued and outstanding shares of Tannehill common stock (the "Shares"). There are no outstanding options, warrants, rights of first refusal, or other rights calling for the issuance of, or any security convertible into or exchangeable for, the Shares and no other person or entity has any right in or to the Shares. 5. No consent, approval or authorization of or designation of Tannehill is required in connection with the valid execution and delivery of the Agreement, or the consummation of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 6. To our best knowledge, no default exists and no event has occurred which would constitute a default under, or violation in the due performance and observance of any term, covenant or condition, or breach of, Tannehill's Articles of Incorporation or Bylaws or any indenture, license, lease, franchise, mortgage, instrument, or other agreement to which Tannehill is a party, or by which it or its properties may be bound; or (a) an event that would permit any party to any agreement or instrument to terminate it or to accelerate the maturity of any indebtedness or other obligation of Tannehill; (b) an event that would result in the creation or imposition of any lien, charge, or encumbrance on any asset of Tannehill; or (c) an event that would conflict with any order, rule, or regulation directed to Tannehill by any court or governmental agency or body having jurisdiction over it. 7. Except as disclosed in the Tannehill Disclosure Letter (as defined in the Agreement), to our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation pending or threatened against or affecting Tannehill or any of its businesses or properties or financial or other condition. 8. Except as disclosed in the Tannehill Disclosure Letter, there are no agreements, written or oral, between Tannehill and any other party that affect, directly or indirectly, the Cogeneration Assets. We are members of the bar of the State of California, and accordingly we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than Federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This

3 opinion letter is addressed to Berry for the benefit of Berry and is only for Berry's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, Roger Coley, Esq. cc: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq.

1 EXHIBIT 7B TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. FORM OF OPINION OF COUNSEL TO TANNEHILL ELECTRIC COMPANY, INC. November ___, 1996 Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, CA 93268 Re: Berry Petroleum Company / Tannehill Electric Company, Inc. Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Tannehill Electric Company, Inc., a California corporation ("Tannehill") and Sunset Investment Company, LLC, a California limited liability company ("Sunset LLC"), in connection with the purchase of substantially all the assets of Tannehill by Berry Petroleum Company, a Delaware corporation ("Berry"), pursuant to that certain Purchase and Sale Agreement, dated November 8, 1996, by and between Tannehill and Berry (the "Agreement"). In connection with the Agreement, Sunset LLC, has entered into an agreement to indemnify Berry (and other parties) against certain claims and losses (the "Indemnity"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Berry. Based on the foregoing, and in reliance thereon, but subject to the qualifications herein set forth, we are of the opinion that: 1. Tannehill is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of California and is in good standing under such laws. Tannehill has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted.

2 2. Sunset LLC is a limited liability company duly organized and validly existing under, and by virtue of, the laws of the State of California and is in good standing under such laws. Sunset LLC has requisite power to own and operate its properties and assets, and to carry on its business as presently conducted. 3. Tannehill has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 4. Sunset LLC has full corporate power and authority to execute and deliver the Indemnity and to perform its obligations under the terms of the Indemnity. 5. All corporate action on the part of Tannehill and its directors and shareholders necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby, has been taken. The Agreement has been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 6. All action on the part of Sunset LLC and its members necessary for the authorization, execution, delivery and performance of the Indemnity and the consummation of the transactions contemplated thereby, has been taken. The Indemnity has been duly executed and delivered by Sunset LLC and constitutes a legal, valid and binding obligation of Sunset LLC enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 7. The individuals and entities executing the Agreement as shareholders of Tannehill are the beneficial owners of all the issued and outstanding shares of Tannehill common stock (the "Shares"). There are no outstanding options, warrants, rights of first refusal, or other rights calling for the issuance of, or any security convertible into or exchangeable for, the Shares and no other person or entity has any right in or to the Shares. 8. The individuals and entities executing the Indemnity as members of Sunset LLC are the beneficial owners of all the ownership interests in Sunset LLC (the "Interests"). There are no outstanding options, warrants, rights of first refusal, or other rights calling for the issuance of, or any security convertible into or exchangeable for, the Interests and no other person or entity has any right in or to the Interests.

3 9. No consent, approval or authorization of or designation of Tannehill is required in connection with the valid execution and delivery of the Agreement, or the consummation of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 10. No consent, approval or authorization of or designation of Sunset LLC is required in connection with the valid execution and delivery of the Agreement, or the consummation of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 11. To our best knowledge, no default exists and no event has occurred which would constitute a default under, or violation in the due performance and observance of any term, covenant or condition, or breach of, Tannehill's Articles of Incorporation or Bylaws, Sunset LLC's Article of Organization or Operating Agreement, or any indenture, license, lease, franchise, mortgage, instrument, or other agreement to which Tannehill is a party, or by which it or its properties may be bound; or (a) an event that would permit any party to any agreement or instrument to terminate it or to accelerate the maturity of any indebtedness or other obligation of Tannehill; (b) an event that would result in the creation or imposition of any lien, charge, or encumbrance on any asset of Tannehill; or (c) an event that would conflict with any order, rule, or regulation directed to Tannehill by any court or governmental agency or body having jurisdiction over it. 12. Except as disclosed in the Tannehill Disclosure Letter (as defined in the Agreement), to our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation pending or threatened against or affecting Tannehill, Sunset LLC or any of their businesses or properties or financial or other condition. 13. Except as disclosed in the Tannehill Disclosure Letter, there are no agreements, written or oral, between Tannehill, Sunset LLC and any other party that affect, directly or indirectly, the Cogeneration Assets. 14. The transfer of the Cogeneration Assets to Berry will not violate the terms of any agreement, document, or court order entered into or issued in connection with the SOCAL Litigation. We are members of the bar of the State of California, and accordingly we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than Federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This opinion letter is addressed to Berry for the benefit of Berry and is only for Berry's use in connection with the Agreement. This opinion letter may not be relied upon by any other person

4 or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, Noriega, Alexander & Bradshaw cc: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq.

1 EXHIBIT 8 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. INDEMNIFICATION THIS INDEMNIFICATION ("Agreement") is entered into on _________________, 1996, by and between Berry Petroleum Company, a Delaware corporation ("Berry"), and Sunset Investment Company, LLC, a California limited liability company ("Sunset LLC"), Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, all acting individually, jointly and severally ("Members"), with Sunset LLC and the Members collectively referred to herein as "Sunset." RECITALS A. On November 8, 1996, Berry entered into separate Purchase and Sale Agreements with Tannehill Electric Company, Inc., a California corporation ("TEC"), certain provisions of which were agreed to by the TEC Shareholders ("TEC Agreement"), Tannehill Oil Company, Inc., a California corporation ("TOCI"), certain provisions of which were agreed to by the TOCI Shareholders ("TOCI Agreement"), and Tannehill Oil Company, a California general partnership ("TOC"), and its Partners individually and as Partners of TOC, ("TOC Partners") ("TOC Agreement"), pursuant to which Berry has agreed to purchase certain assets of TEC, TOCI, TOC and the TOC Partners. B. TEC, TOCI and TOC are involved in litigation with Southern California Gas Company ("SOCAL"), the "SOCAL Litigation", as defined below. Under the terms of the TEC Agreement, TEC and the Shareholders of TEC have indemnified Berry against certain liabilities, including liabilities related to the SOCAL Litigation, the SOCAL Contract and litigation by certain parties related to the transfer of assets to Berry under the terms of the TEC Agreement. C. As further consideration for Berry entering into the agreements described in Recital A hereof, TEC, TOCI, TOC and the TOC Partners have agreed that $5 million of the cash proceeds from the TOC Agreement described in Recital A hereof will be invested in Sunset LLC as capital to be retained and invested as provided in the Articles of Organization and the Operating Agreement of Sunset LLC and held as a reserve fund (the "Reserve") under the terms of the Amendment and Consent to Assignment of O & M Agreement dated as of November ___, 1996, among Sunset LLC, Monarch Cogeneration 1986-1, a California Limited Partnership

2 ("Monarch"), Caterpillar Capital Company, Inc., a Delaware corporation, Solar Turbines Incorporated, a Delaware Corporation, TEC, TOC and Berry (the "Consent") to be used in support of the Indemnification by Sunset LLC of Berry from costs, judgments, liabilities and claims with respect to the SOCAL Contract, defined below, SOCAL Litigation and the SOCAL Liabilities from and after the effective date of the Consent. D. The Consent provides that Sunset LLC shall grant Berry a security interest in the Reserve which shall serve as security for Sunset LLC's obligations under this Agreement (the "Security Agreement"). There shall be a continuing lien on the Reserve for the term of this Agreement. E. It is intended hereby to provide for such indemnity by Sunset to Berry. NOW, THEREFORE, in consideration of the premises, representations, warranties and agreements herein contained and contained in the TEC Agreement, and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, Berry and Sunset hereby agree as follows: ARTICLE I DEFINITIONS Capitalized terms used in this Agreement shall have the meanings given to them in this Article I, unless defined elsewhere in this Agreement. 1.1 "SOCAL Contract" shall mean that Gas Transmission Service Contract between Southern California Gas Company ("SOCAL") and Caterpillar Capital Company dated February 25, 1988, amended March 1, 1992, and assigned by Caterpillar Capital Company to TEC by Consent to Assignment and Agreement, dated August 19, 1994. 1.2 "SOCAL Litigation" shall mean that lawsuit originally filed in the United States District Court for the Southern District of Texas, Houston Division, entitled Tannehill Electric Company, Inc., versus Southern California Gas Company, on or about July 17, 1995, Case No. H95-3752, transferred to the Central District of California and docketed in such district as Case No. CV96-2502, together with any amendments thereto and any counter-claims or cross-complaints presently or hereafter filed therein whether by SOCAL or others; that lawsuit filed October 7, 1996, in the Superior Court of the State of California for the County of Kern, entitled Tannehill Electric Company, Inc. v. Southern California Gas Company, Case No. CV96-2502, together with any amendments thereto and any cross-complaints presently or hereafter filed therein by SOCAL or others; that lawsuit filed in the Superior Court for the County of Los Angeles entitled Southern California Gas Company v. Tannehill Electric Company, Inc., Case No. BC158128, together with any amendments thereto and any cross-complaints presently or hereinafter filed by TEC or others; and any lawsuits presently or hereafter filed by SOCAL or its assignee against TEC, TOCI, TOC or the TOC Partners or Sunset LLC or the Members or Shareholders, or their successors, or Berry, based wholly or in part on the SOCAL Contract.

3 1.3 Unless otherwise expressly indicated herein, all defined terms used in this Agreement shall have the meanings ascribed to them in the Consent. ARTICLE II INDEMNITY 2.1 Indemnification by Sunset. Sunset LLC and the Members, jointly and severally, hereby agree to indemnify, defend (with counsel reasonably acceptable to Berry) and hold Berry, and the officers, directors, employees and agents of Berry (collectively, the officers, directors, employees and agents being referred to in each case as its "Related Parties") harmless from and against any and all lawsuits, liability, damages, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Berry and/or its Related Parties may incur or become subject to or arising out of or due to (a) any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement contained in this Agreement, or (b) any claim by SOCAL against Berry based upon or related to, in whole or in part, the SOCAL Contract, the SOCAL Litigation, the Facility or the transfer of the Cogeneration Assets (as that term is defined in the TEC Agreement) to Berry. In no event, shall the indemnity contained in this Agreement modify the terms of any other indemnify in favor of Berry from TEC, TOCI, TOC or the TOC Partners in whatever capacity. All such indemnities shall continue to be in full force and effect and are not modified or supplemented as a result of this Agreement. Berry shall have full discretion to proceed against any and all indemnitors with respect to any claims, liabilities, costs, judgments or settlements for which indemnity is expressly provided under the terms of any such other agreement or undertaking. 2.2 Obligations Absolute. The obligations of Sunset hereunder shall remain in full force and effect without regard to, and shall not be affected or impaired by the following, nor shall any of the following give Sunset any recourse or right of action against Berry: (a) Any breach or termination by any party of its obligations under the O&M Agreement; (b) Any express or implied amendment, modification, renewal, addition, supplement, extension of the Consent or the O&M Agreement; (c) Any exercise or non-exercise or waiver by Berry of any right or privilege under the O&M Agreement or the Consent and any instruments delivered in connection therewith; (d) Any bankruptcy, insolvency, reorganization, composition, adjustment, dissolution, liquidation or other like proceeding relating to Sunset or Berry, or any entity or individual comprising same, or any action taken with respect to this Agreement by any trustee or receiver, or by any court, in any such proceeding, whether or not Sunset shall have had notice or knowledge of any of the foregoing;

4 (e) Any release or discharge of any other party at any time directly or contingently liable for obligations evidenced by, or referenced in, the O&M Agreement or the Consent or in connection therewith; (f) Any assignment or other transfer of this Agreement in whole or in part; (g) Any acceptance of partial performance by SOCAL (or its successors or assigns) of the SOCAL Contract or with respect to the SOCAL Litigation or the existence of any claims, disputes or allegations by or between SOCAL on the one hand, and TEC or Sunset LLC, or any of them, on the other hand, arising out of, relating to, or in connection with, the SOCAL Contract, the SOCAL Litigation, the O&M Agreement or the Facility from and after the date on which the O&M Agreement is assigned by TEC to Berry as contemplated under the Consent; and/or (h) Any concurrent and/or contributory negligence (whether active or passive or of any kind or description) or fault of Berry. 2.3 Evidence of Satisfactory Condition. Sunset LLC acknowledges that, in agreeing to consummate the transactions contemplated under the Consent, Berry is relying upon Sunset LLC's financial ability to support this Agreement. In order to provide assurances to Berry of Sunset LLC's continuing ability to meet its obligations under this Agreement, Sunset LLC shall provide Berry with financial statements for Sunset LLC upon written request from Berry, given in the manner required with respect to any notice provided under this Agreement, in addition to all other financial information required under the Consent or Security Agreement. 2.4 Sunset LLC's Affirmative Duty. Sunset shall have an affirmative duty to monitor, on a best-efforts basis, the existence of any facts, course of conduct or actions taken which could lead to or result in any Claims by SOCAL against Berry which give rise to Sunset LLC's obligations hereunder, and shall forthwith give Berry notice of such Claims. Sunset shall have a further duty to perform each and every obligation set forth in this Agreement with regard to any Claim of SOCAL of which it knew or should have known, even in the absence of written notice by Berry. It is the express intention of the parties that Berry shall have no duty and bear no burden with respect to any Claim by or on behalf of SOCAL. 2.5 Payments and Performance. Sunset agrees that whenever it shall make any payment to Berry or otherwise perform any of the obligations under this Agreement on account of the liability hereunder, it will deliver such payment or tender such performance to Berry at the address therefor specified hereinbelow, or at such other address as may be required by Berry, or any entity comprising Berry, and notify Berry, in writing that such payment is made or performance tendered under this Agreement for such purpose. No payment made hereunder by Sunset LLC to Berry shall constitute Sunset LLC as a creditor of Berry. 2.6 Presumptions and Effect of Certain Proceedings. Upon making a request for indemnification, for a Claim covered hereunder, it shall be presumed that such indemnification is not prohibited by law and Sunset shall have the burden of proof to show that such

5 indemnification is expressly prohibited by applicable law in order to overcome that presumption in reaching any contrary determination. If the person or persons so empowered to make the determination shall have failed to make the requested indemnification within sixty (60) days after any judgment, order, settlement, dismissal, arbitration award, conviction, acceptance of a plea of nolo contendere or its equivalent, or other disposition or partial disposition of any proceeding or any other event which could enable Sunset to determine Berry's entitlement to indemnification, the requisite determination of entitlement to indemnification shall be deemed to have been made and Berry shall be absolutely entitled to indemnification under this Agreement, absent (a) misrepresentation or omission by Berry of a material fact in the request for indemnification or (b) a specific finding (which has become final) that all or any part of such indemnification is expressly prohibited by law. The termination of any proceeding by judgment, order, settlement, arbitration award or conviction, or upon a plea of nolo contendere or its equivalent, shall not of itself (i) adversely affect the rights of Berry to indemnification except as may be provided herein, (ii) create a presumption that Berry did not act in good faith and in a manner which it reasonably believed to be in or not opposed to the best interests of Sunset, or (c) with respect to any criminal action or proceeding, create a presumption that Berry had reasonable cause to believe that its conduct was unlawful. 2.7 Remedies of Berry in Cases of Determination Not to Indemnify or to Advance Expenses. (a) Determination. In the event that (i) an initial determination is made that Berry is not entitled to indemnification, (ii) advances are not made pursuant to this Agreement, (iii) payment has not been timely made following a determination of entitlement to indemnification pursuant to this Agreement or (iv) Berry otherwise seeks enforcement of this Agreement, Berry shall be entitled to a final adjudication in an appropriate court of the State of California of its entitlement to such indemnification or advance. Sunset shall not oppose Berry's right to seek any such adjudication. In any such proceeding Berry shall be presumed to be entitled to indemnification under this Agreement and Sunset shall have the burden of proof to overcome that presumption. (b) No Prejudice. In the event an initial determination has been made, in whole or in part, that Berry is not entitled to indemnification, the decision in the judicial proceeding provided in paragraph (a) of this Section 2.7 shall be made de novo and Berry shall not be prejudiced by reason of a determination that it is not entitled to indemnification. (c) Effect of Determination. If an initial determination is made or deemed to have been made pursuant to the terms of this Agreement that indemnification of Berry provided hereunder is not expressly prohibited by law, Berry shall be entitled to such indemnification and Sunset shall be bound by such determination in the absence of (i) a misrepresentation or omission of a material fact by Berry or (ii) a specific finding (which has become final) that all or any part of such indemnification is expressly prohibited by law. (d) Stipulation. Sunset shall be precluded from asserting that the procedures and presumptions of this Agreement are not valid, binding and enforceable. Sunset LLC shall

6 stipulate in any such court that Sunset is bound by all the provisions of this Agreement and is precluded from making any assertion to the contrary. (e) Expenses. Expenses incurred by Berry in good faith in connection with its request for indemnification under, seeking enforcement of, or to recover damages for breach of, this Agreement shall be borne by Sunset. 2.8 Grant of Security Interest. Sunset LLC shall grant a security interest in the assets of Sunset LLC pursuant to the Reserve Security Instruments and the Security Agreement which shall serve as security for Sunset LLC's due and punctual performance of all obligations under the Consent and this Agreement and shall be a continuing lien on the assets of Sunset LLC for the term of this Agreement. Sunset LLC shall promptly execute and deliver all Reserve Security Instruments as contemplated under the Consent and this Agreement. 2.9 Retention of Reserve by Members. In the event the Reserve, or any part of it, is distributed to the Members due to dissolution of Sunset LLC, or otherwise, the Members shall hold, invest, retain and pay out such Reserve under the terms of the Consent, this Agreement, the Sunset LLC Operating Agreement and any Reserve Security Instruments. ARTICLE III REPRESENTATIONS AND WARRANTIES 3.1 Representations and Warranties. Sunset makes the following representations and warranties which shall be continuing representations and warranties: (a) Organization, Standing and Power. Sunset LLC is validly existing and in good standing under the laws of the States of the United States in which it does business and has full power and authority to execute, deliver and perform its obligations under this Agreement. (b) Binding Effect. This Agreement has been duly authorized, executed and delivered by Sunset, and is the valid, legal and binding obligation of Sunset, enforceable against it in accordance with its terms. (c) No Consents. To Sunset's knowledge, after due and diligent investigation, no registration with, consent or approval of, or any other action by, any federal, state or other governmental agency, authority or regulatory body, foreign or domestic, is required as a condition to, or otherwise in connection with, the execution, delivery and performance of this Agreement by Sunset LLC. Neither the execution, delivery or performance of this Agreement has resulted or will result in any breach of any provision of, or constitute a default (or an event which with or without notice and/or lapse of time would constitute a default), or result in the creation of any lien, charge or other encumbrance upon any of the assets of Sunset LLC, under Sunset LLC's organizational documents, or any agreement or instrument to which Sunset LLC is a party or by which it is bound or any statute, rule, judgment, order or regulation of any court or governmental authority applicable to it.

7 (d) Purpose of Organization. Sunset LLC hereby acknowledges and warrants that it has been established and is organized, for the primary purpose of providing to Berry the indemnities and agreements set forth in this Agreement, and to provide similar indemnities and agreements for the benefit of other parties in connection with the SoCal Gas Litigation and the SoCal Liabilities, all as more particularly described in the Consent. The Members have determined that it is in the best interests of Sunset LLC to execute, deliver and perform this Agreement for the benefit of Berry and to enter into the arrangements and undertakings set forth herein. (e) Insolvency. The execution and delivery of this Agreement will not (i) render Sunset LLC insolvent under generally accepted accounting principles nor render it Insolvent (as defined below), (ii) leave Sunset LLC with remaining assets which constitute unreasonably small capital given the nature of its business, or (iii) result in the incurrence of Debts (as defined below) beyond the ability of Sunset LLC to pay them when and as they mature. For the purposes of this Section (e), "Debts" includes any legal liability for indebtedness, whether matured or unmatured, liquidated or unliquidated, absolute, fixed or contingent. (f) Consent. Sunset LLC has read and examined, or is otherwise familiar with, the Consent and is aware and has full knowledge of Sunset LLC's obligations and duties thereunder. ARTICLE IV GENERAL PROVISIONS 4.1 Complete Agreement; Interpretation. This Agreement, together with the Consent, and all instruments or other documents to be executed and delivered thereunder, supersede any prior negotiations, discussions or communications between Sunset LLC and Berry and constitute the entire agreement of such parties with respect to the subject matter of this Agreement. Each party to this Agreement has substantial experience with the subject matter of this Agreement and each has fully participated in the negotiation and drafting of this Agreement and has been advised by counsel of its choice with respect to the subject matter hereof. Accordingly, this Agreement shall be construed without regard to the rule that ambiguities in a document are to be construed against the drafter. 4.2 Exercise of Remedies; Successors; Etc. No delay or failure by Berry to exercise any remedy against Sunset will be construed as a waiver of that right or remedy. All remedies of Berry are cumulative. Any claim for performance under this Agreement, or exercise of any right or remedy accruing under this Agreement to the benefit of Berry may be made or exercised by each entity comprising Berry as if Berry collectively has made such claim or exercised such right or remedy. When the context in which the words are used in this Agreement indicates that such is the intent, words in the singular number shall include the plural and vice-versa. If any one or more of the provisions of this Agreement should be determined to be illegal or unenforceable, all other provisions shall remain effective. Sunset shall not have the right to assign any of its rights or obligations under this Agreement without the prior written consent of

8 Berry, or its successors or assigns, which consent may be withheld in such party's sole discretion. 4.3 Demands. Except as set forth in Section 2.4 above, each demand by Berry for performance or payment hereunder shall be in writing and shall be made in the manner set forth in Section 4.10 below. 4.4 Invalidity. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic and legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner to the end that transactions contemplated hereby are fulfilled to the extent possible. 4.5 Attorneys' Fees. In the event of any claim, dispute or controversy arising out of or relating to this Agreement, including an action for declaratory relief, the prevailing party in such action or proceeding shall be entitled to recover its taxable costs or arbitration fees, and reasonable out-of-pocket expenses, including, but not limited to, telephone calls, photocopies, expert witnesses, travel, computer expenses related to litigation, and attorneys' fees to be fixed by the court or the arbitrator. Such recovery shall include court costs, out-of-pocket expenses and attorneys' fees on appeal, if any. The court shall determine who is the "prevailing party," whether or not the dispute or controversy proceeds to final judgment. 4.6 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original and all of which shall constitute the same instrument. 4.7 Headings. The headings of the articles, sections and paragraphs of this Agreement and of the exhibits hereto are included for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction hereof or thereof. 4.8 Construction and References. Words used in this Agreement, regardless of the number or gender specifically used, shall be deemed and construed to include any other number, singular or plural, and any other gender, masculine, feminine or neuter, as the context shall require. Unless otherwise specified, all references in this Agreement to articles, sections, paragraphs or clauses are deemed references to the corresponding articles, sections, paragraphs or clauses in this Agreement. 4.9 Modification and Waiver. Any of the terms or conditions of this Agreement may be waived in writing at any time by the party which is entitled to the benefits thereof. No waiver of any of the provisions of this Agreement shall be deemed to or shall constitute a waiver of any other provisions hereof (whether or not similar).

9 4.10 Notices. Any notice, request, instruction or other document to be given hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: (a) if to Sunset LLC and/or the Members, to: Sunset Investment Company, LLC 120 Manteca Avenue P.O. Box 871 Manteca, California 95336 Attn: Managing Member Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014 with copies to: Noriega, Alexander and Bradshaw 1801 - 18th Street Bakersfield, California 93301 Attn: William Alexander, Esq. Facsimile No. (805) 327-5492 Confirmation No. (805) 327-5363 (b) if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Facsimile No. (805) 769-8960 Confirmation No. (805) 769-8811

10 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Office Box 9100 Oxnard, California 93031-9100 Facsimile No. (805) 988-8387 Confirmation No. (805) 485-1000 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notices delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given. 4.11 Governing Law; Interpretation. This Agreement shall be construed in accordance with and governed by the laws of the State of California (regardless of the laws that might otherwise govern under applicable California principles of conflict of laws) as to all matters, including, but not limited to, matters of validity, construction, effect, performance and remedies. 4.12 Jury Trial Waiver. To the fullest extent permitted by law, and as separately bargained-for consideration, Sunset hereby waives any right to trial by jury in any action, suit, proceeding or counterclaims of any kind arising out of or relating to this Agreement. Sunset hereby expressly acknowledges the inclusion of this jury trial waiver through its execution of this Agreement.

11 IN WITNESS WHEREOF, Berry and Sunset have caused this Agreement to be executed as of the date first above written. BERRY PETROLEUM COMPANY SUNSET INVESTMENT COMPANY, LLC a Delaware corporation a California limited liability company By: By: Jerry V. Hoffman, Albert G. Boyce, Jr. President Its Managing Member By: By: Kenneth A. Olson, John W. Tannehill Secretary Its Managing Member By: James L. Hinkle Its Managing Member Members BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation By: Albert G. Boyce, Jr., Albert G. Boyce, Jr., as Trustee President of Trust "B" Under Will of Albert G. Boyce, Sr., Deceased William J. Boyce Albert G. Boyce V Mary K. Boyce John T. Hinkle Bettianne H. Bowen James L. Hinkle

12 VERNIER RESOURCES CORPORATION, GENERAL WESTERN, INC., a Texas corporation a New Mexico corporation By: By: Bettianne H. Bowen, President James L. Hinkle, President and Secretary By: Cheryl Bailey Harrison, Secretary Lisle Q. Tannehill Thomas H. Tannehill Gail Kay Tannehill, as Trustee Delmar R. Archibald, as of the Gail Kay Tannehill Trustee of the Delmar R. Family Trust, dated April 9, Archibald Family Trust, dated 1996 June 22, 1982 John W. Tannehill Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated June 22, 1982 Spousal Consents The undersigned, spouses of the Members named in this Agreement, hereby consent to the terms and conditions of this Agreement and agree that their community property, if any, included in the Assets, as defined herein, is subject to this Agreement.

1 EXHIBIT 9 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO BY AND BETWEEN TANNEHILL ELECTRIC COMPANY, INC. AND BERRY PETROLEUM COMPANY ON NOVEMBER 8, 1996 (PARAGRAPH 8.6 THEREOF) The undersigned certify that Berry Petroleum Company has complied with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company and Tannehill Electric Company, Inc., entered into on November 8, 1996. Date: _____________, 1996 BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________ Jerry V. Hoffman, President and Chief Executive Officer By: _____________________________ Kenneth A. Olson, Secretary

1 EXHIBIT 10 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL ELECTRIC COMPANY, INC. FORM OF OPINION OF COUNSEL TO BERRY PETROLEUM COMPANY November ___, 1996 Tannehill Electric Company, Inc. Attn: Mr. Albert G. Boyce, Jr. President 120 Manteca Avenue P.O. Box 871 Manteca, CA 95336 Re: Berry Petroleum Company / Tannehill Electric Company, Inc. Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Berry Petroleum Company, a Delaware corporation ("Berry"), in connection with the purchase of substantially all the assets of Tannehill Electric Company, Inc., a California corporation ("Tannehill"), by Berry, pursuant to that certain Purchase and Sale Agreement, dated November 8, 1996, by and between Tannehill and Berry (the "Agreement"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Tannehill. 1. Berry is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of Delaware and is in good standing under such laws. Berry has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Berry has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 3. All corporate action on the part of Berry necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby, has been taken. The Agreement has been duly executed and delivered by Berry and constitutes a legal, valid and binding obligation of Berry, enforceable against it in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to

2 creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. No consent, approval or authorization of or designation of Berry is required in connection with the valid execution and delivery of the Agreement by Berry, or the consummation by Berry of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 5. To our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation that is material to the transactions contemplated by the Agreement pending or threatened against or affecting Berry or any of its businesses or properties or financial or other condition. We are members of the bar of the State of California, and except for our opinion set forth in Paragraph 1 above, we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than Federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This opinion letter is addressed to Tannehill for the benefit of Tannehill and is only for Tannehill's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, NORDMAN, CORMANY, HAIR & COMPTON cc: Roger Coley, Esq.

   
                       PURCHASE AND SALE AGREEMENT                       
                              By and Between
                       Berry Petroleum Company and
     Tannehill Oil Company, a California general partnership, and
    Boyce Resource Development Company, a California corporation;
           Albert G. Boyce, Jr., as Trustee of Trust "B" Under
               the Will of Albert G. Boyce, Sr., Deceased;
                   William J. Boyce; Albert G. Boyce V;
         Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen;
         Vernier Resources Corporation, a Texas corporation;
  James L. Hinkle; General Western, Inc., a New Mexico corporation;
       Delmar R. Archibald and Joy A. Archibald, Trustees of the 
         Delmar R. Archibald Family Trust, Dated June 22, 1982;
                    Lisle Q. Tannehill; John W. Tannehill;
   Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family
          Trust, Dated April 9, 1996; and Thomas H. Tannehill,
         as partners of Tannehill Oil Company, and individually
  
                            Dated November 8, 1996


TABLE OF CONTENTS Page ARTICLE I DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1 "Affiliate" . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 "Agreement". . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 "Assets" . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.4 "Business Day" . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 "Closing". . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 "Code" . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.7 "Default". . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.8 "Effective Date" . . . . . . . . . . . . . . . . . . . . . . . 2 1.9 "Encumbrance". . . . . . . . . . . . . . . . . . . . . . . . . 2 1.10 "Environmental Laws" . . . . . . . . . . . . . . . . . . . . . 2 1.11 "Escrow" . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.12 "Financial Statements" . . . . . . . . . . . . . . . . . . . . 3 1.13 "Governmental Entity". . . . . . . . . . . . . . . . . . . . . 3 1.14 "Indemnifying Party" . . . . . . . . . . . . . . . . . . . . . 3 1.15 "Indemnitee" . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.16 "IRS". . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.17 "Material" . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.18 "Mineral Interest" . . . . . . . . . . . . . . . . . . . . . . 4 1.19 "Permitted Encumbrances" . . . . . . . . . . . . . . . . . . . 4 1.20 "Person" . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.21 "Purchase Price" . . . . . . . . . . . . . . . . . . . . . . . 4 1.22 "Requisite Regulatory Approvals" . . . . . . . . . . . . . . . 4 1.23 "TEC Purchase Agreement" . . . . . . . . . . . . . . . . . . . 4 1.24 "TOC Purchase Agreement" . . . . . . . . . . . . . . . . . . . 4 1.25 "Warrant". . . . . . . . . . . . . . . . . . . . . . . . . . . 4 ARTICLE II THE PURCHASE AND SALE. . . . . . . . . . . . . . . . . . . . . 4 2.1 Transfer to Berry. . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Purchase by Berry. . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Payment of the Purchase Price. . . . . . . . . . . . . . . . . 5 2.4 Operating Adjustment.. . . . . . . . . . . . . . . . . . . . . 5 2.5 Assets to be Conveyed to Berry.. . . . . . . . . . . . . . . . 6 2.6 Allocation of Purchase Price . . . . . . . . . . . . . . . . . 7 2.7 Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.8 Proration of Credits and Payment Obligations . . . . . . . . . 7 2.9 Real Estate and Other Taxes. . . . . . . . . . . . . . . . . . 8 2.10 Documentation of Sale and Transfer of Ownership. . . . . . . . 8 2.11 Approval of Title and Condition of the Real Property . . . . . 8 2.12 Closing Procedure. . . . . . . . . . . . . . . . . . . . . . . 8 2.13 Post Closing Access to Documents . . . . . . . . . . . . . . . 9 2.14 Escrow . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 Partnership Organization . . . . . . . . . . . . . . . . . . 10 3.2 Effect of Agreement; Consents. . . . . . . . . . . . . . . . 10 3.3 Financial Statements . . . . . . . . . . . . . . . . . . . . 11 3.4 Taxes and Tax Returns. . . . . . . . . . . . . . . . . . . . 11 3.5 Absence of Adverse Change. . . . . . . . . . . . . . . . . . 11 3.6 No Misleading Statements . . . . . . . . . . . . . . . . . . 11 3.7 No Significant Transactions. . . . . . . . . . . . . . . . . 12 3.8 Properties, Title and Related Matters. . . . . . . . . . . . 12 3.9 Legal Proceedings. . . . . . . . . . . . . . . . . . . . . . 13 3.10 Records. . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.11 No Undisclosed Material Liabilities. . . . . . . . . . . . . 13 3.12 Contracts. . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.13 Brokerage. . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.14 Execution and Delivery . . . . . . . . . . . . . . . . . . . 14 3.15 Environmental Matters. . . . . . . . . . . . . . . . . . . . 14 3.16 Employees. . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.17 Investigation. . . . . . . . . . . . . . . . . . . . . . . . 17 ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.1 Corporate Organization . . . . . . . . . . . . . . . . . . . 17 4.2 Due Authorization, Execution and Delivery; Effect of Agreement . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.3 Consents . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.4 Litigation . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.5 Brokerage. . . . . . . . . . . . . . . . . . . . . . . . . . 18 4.6 Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . 18 ARTICLE V COVENANTS OF TANNEHILL. . . . . . . . . . . . . . . . . . . 19 5.1 Access to Tannehill. . . . . . . . . . . . . . . . . . . . . 19 5.2 Governmental Approvals; Consents . . . . . . . . . . . . . . 19 5.3 Litigation and Claims. . . . . . . . . . . . . . . . . . . . 19 5.4 Notice of Changes. . . . . . . . . . . . . . . . . . . . . . 20 5.5 Conduct of Business Operations . . . . . . . . . . . . . . . 20 5.6 Maintain Assets and Operations . . . . . . . . . . . . . . . 21 5.7 Exclusive Dealing. . . . . . . . . . . . . . . . . . . . . . 21 5.8 Termination Fee. . . . . . . . . . . . . . . . . . . . . . . 22 5.9 Taxes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.10 Approval of Transaction. . . . . . . . . . . . . . . . . . . 22 ARTICLE VI COVENANTS OF BERRY . . . . . . . . . . . . . . . . . . . . . 22 6.1 Cooperation. . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2 Governmental Approvals . . . . . . . . . . . . . . . . . . . 22

6.3 Disclosure Responsibilities. . . . . . . . . . . . . . . . . 22 6.4 Authorization of Warrant . . . . . . . . . . . . . . . . . . 23 6.5 Cooperation in Exchange. . . . . . . . . . . . . . . . . . . 23 ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY . . . . . . . . . . . . . 23 7.1 Accuracy of Representations and Warranties . . . . . . . . . 23 7.2 Performance of Covenants and Agreements. . . . . . . . . . . 23 7.3 Consents . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.4 Governmental Approvals . . . . . . . . . . . . . . . . . . . 23 7.5 Approval of Counsel. . . . . . . . . . . . . . . . . . . . . 23 7.6 Partners' Certificate. . . . . . . . . . . . . . . . . . . . 24 7.7 Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . 24 7.8 Closing of TEC and TOC Purchase Agreements . . . . . . . . . 24 7.9 Condition of Real Property . . . . . . . . . . . . . . . . . 24 7.10 Termination of Operating Agreement . . . . . . . . . . . . . 26 ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL. . . . . . . . . . 26 8.1 Accuracy of Representations and Warranties . . . . . . . . . 26 8.2 Performance of Covenants and Agreements. . . . . . . . . . . 26 8.3 Resolutions. . . . . . . . . . . . . . . . . . . . . . . . . 26 8.4 Approval of Counsel. . . . . . . . . . . . . . . . . . . . . 26 8.5 Governmental Approvals . . . . . . . . . . . . . . . . . . . 26 8.6 Officers' Certificate. . . . . . . . . . . . . . . . . . . . 27 8.7 Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . 27 8.8 Closing of TEC and TOC Purchase Agreements . . . . . . . . . 27 ARTICLE IX TERMINATION PRIOR TO CLOSING . . . . . . . . . . . . . . . . 27 9.1 Termination. . . . . . . . . . . . . . . . . . . . . . . . . 27 9.2 Effect on Obligations. . . . . . . . . . . . . . . . . . . . 27 ARTICLE X INDEMNIFICATION. . . . . . . . . . . . . . . . . . . . . . . 28 10.1 Indemnification by Berry . . . . . . . . . . . . . . . . . . 28 10.2 Indemnification by Tannehill.. . . . . . . . . . . . . . . . 28 10.3 Survival . . . . . . . . . . . . . . . . . . . . . . . . . . 28 10.4 Notice and Opportunity to Defend . . . . . . . . . . . . . . 28 10.5 General. . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ARTICLE XI MISCELLANEOUS. . . . . . . . . . . . . . . . . . . . . . . . 30 11.1 Entire Agreement . . . . . . . . . . . . . . . . . . . . . . 30 11.2 Successors and Assigns . . . . . . . . . . . . . . . . . . . 30 11.3 Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . 30

11.4 Taking of Necessary Action . . . . . . . . . . . . . . . . . 30 11.5 Invalidity . . . . . . . . . . . . . . . . . . . . . . . . . 30 11.6 Attorneys' Fees. . . . . . . . . . . . . . . . . . . . . . . 31 11.7 Counterparts . . . . . . . . . . . . . . . . . . . . . . . . 31 11.8 Headings . . . . . . . . . . . . . . . . . . . . . . . . . . 31 11.9 Construction and References. . . . . . . . . . . . . . . . . 31 11.10 Modification and Waiver. . . . . . . . . . . . . . . . . . . 31 11.11 Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . 32 11.12 Public Announcements . . . . . . . . . . . . . . . . . . . . 33 11.13 Governing Law; Interpretation. . . . . . . . . . . . . . . . 33 11.14 Jurisdiction . . . . . . . . . . . . . . . . . . . . . . . . 33

LIST OF EXHIBITS Exhibit Number Warrant Certificate. . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Grant Deed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Bill of Sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Assignment of Leases, Rights of Way, Easements and Contracts (Unrecorded Documents). . . . . . . . . . . . . . . . 4 Assignment of Leases, Rights of Way, Easements and Contracts (Recorded Documents). . . . . . . . . . . . . . . . . 5 Assignment of Oil and Gas Leases . . . . . . . . . . . . . . . . . . . . 6 Promissory Note 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Promissory Note 2. . . . . . . . . . . . . . . . . . . . . . . . . . 8A-8F Description of Real Property . . . . . . . . . . . . . . . . . . . . . . 9 Allocation of Purchase Price . . . . . . . . . . . . . . . . . . . . . . 10 Certificate of Satisfaction. . . . . . . . . . . . . . . . . . . . . . . 11 Escrow Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Certificate of Compliance of Tannehill . . . . . . . . . . . . . . . . . 13 Opinion of Counsel to Tannehill. . . . . . . . . . . . . . . . . . . . . 14 Certificate of Compliance of Berry . . . . . . . . . . . . . . . . . . . 15 Opinion of Counsel to Berry. . . . . . . . . . . . . . . . . . . . . . . 16

1 PURCHASE AND SALE AGREEMENT THIS PURCHASE AND SALE AGREEMENT ("Agreement") is dated, for the convenience of the parties hereto, November 8, 1996, by and between Berry Petroleum Company, a Delaware corporation ("Berry"), and Tannehill Oil Company, a California general partnership ("Tannehill Oil"), and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, all acting as partners of Tannehill Oil and individually, jointly and severally ("Partners"), with Tannehill Oil and the Partners collectively referred to herein as "Tannehill." RECITALS: A. Berry and Tannehill have all determined that it is in their respective best interests for Berry to purchase substantially all of the assets owned by Tannehill Oil or the Partners and utilized in or related to the oil and gas operations of Tannehill Oil, upon the terms and subject to the conditions set forth herein; B. In furtherance thereof, it is proposed that Berry shall purchase from Tannehill for the Purchase Price set forth in Section 2.3 hereof substantially all of the assets of Tannehill Oil and substantially all assets of the Partners that are utilized in the operations of Tannehill Oil in fee, and with clear title, free of debt, subject to the reservation by the Partners of a royalty interest of four percent (4%) of all gas, oil and other hydrocarbon substances produced from all zones lying below 4,500 feet below the surface of the Tannehill property (excluding the Geiger Lease as defined herein) purchased under the terms of this Agreement; and C. Berry and Tannehill have entered into an Agreement in Principle and Exclusive Dealing Agreement dated August 15, 1996 ("AIP"), and wish to set forth the representations, warranties, agreements and conditions under which the purchase and sale will occur in this Definitive Agreement, as defined in Section 6 of the AIP, which upon execution will supersede the AIP. NOW, THEREFORE, in consideration of the premises, representations, warranties and agreements herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Berry and Tannehill hereby agree as follows: ARTICLE I DEFINITIONS Capitalized terms used in this Agreement shall have the meanings given to them in this Article I, unless defined elsewhere in this Agreement. 1.1 "Affiliate" shall mean with respect to any Person, an individual or entity that, directly or indirectly, controls, is controlled by or is under common control with such Person. 1.2 "Agreement" shall have the meaning such term is given in the introductory paragraph hereof. 1.3 "Assets" shall mean substantially all the tangible and intangible, real, personal and mixed assets and properties of Tannehill Oil and substantially all the individual assets of the Partners utilized in the oil and gas operations of Tannehill Oil, including but not limited to the oil and gas leases, easements, rights of way, inventory, supplies and equipment of Tannehill Oil and the oil and gas interests, wells, pipelines, surface equipment and real property owned individually by the Partners, excluding only cash, receivables and specific items of personal property, as described in Section 2.5 hereof. Assets shall also include the Partners' interests as Premises Lessors under the Cogeneration Premises Lease (as defined in Section 2.5 hereof). 1.4 "Business Day" shall mean any day other than Saturday, Sunday or other days on which federally chartered commercial banks in California are authorized by law to close. 1.5 "Closing" shall have the meaning such term is given in Section 2.7 hereof. 1.6 "Code" shall mean the Internal Revenue Code of 1986, as amended. 1.7 "Default" shall mean, as to any party to this Agreement, (a) a default by such party in the performance of any of its material obligationshereunder and the continuation of such default for a period of five (5) Business Days after written notice is delivered by the non-defaulting party to the defaulting party that a default has occurred or (b) the breach of any representation or warranty hereunder. 1.8 "Effective Date" shall have the meaning such term is given in paragraph 2.4a hereof. 1.9 "Encumbrance" shall mean any security interest, mortgage, pledge, claim, lien, charge, option, defect, encumbrance, or other right or interest of any nature. 1.10 "Environmental Laws" shall be broadly construed to mean any and all federal, state or local laws, statutes, ordinances, rules, regulations, orders, or determinations of any Governmental Entity pertaining to the environment heretofore or currently in effect in any and all jurisdictions in which Tannehill is conducting or at any time has conducted business, or where any of the Assets are located, or where any hazardous substances generated by or disposed of by Tannehill are located. "Environmental Laws" shall include, but shall not be limited to, the federal Clean Air Act, as amended; the federal Comprehensive Environmental, Response, Compensation, and Liability Act of 1980 ("CERCLA"), as amended; the federal Water Pollution Control Act, as amended; the federal Resource Conservation and Recovery Act of 1976, as amended ("RCRA"); the ederal Safe Drinking Water Act, as amended; the federal Toxic Substances Control Act, as amended; the federal Superfund Amendments and Reauthorization Act of 1986, as amended; the federal Clean Water Act, as amended; or any state laws or regulations similar or analogous to or in implementation of these provisions; the California State Business Plan Law, California Health and Safety Code Section 25500 et seq.; the Hazardous Substance Account Act, Health and Safety Code Section 25300 et seq.; the Hazardous Waste Control Law, Health and Safety Code Section 25100 et seq.; Chapter 6.7 of Division 20 of the Health and Safety Code, Section 25280 et seq.; the Safe Drinking Water and Toxic Enforcement Act of 1986 ("Proposition 65"); Health and Safety Code Section 25249.5 et seq.; Division 26 of the Health and Safety Code, Section 39000 et seq.; the Porter-Cologne Act, Water Code Section 13000 et seq.; and any other successor or amendments thereto, or implementing regulations thereof; and all other laws, statutes, ordinances, rules, regulations, orders and determinations of any Governmental Entity relating to (a) the control of any potential pollutant or protection of the air, water or land; (b) solid, gaseous or liquid waste generation, handling, treatment, storage, disposal or transportation; and (c) exposure to hazardous, toxic or other substances alleged to be harmful. The terms "hazardous substance," "release" and "threatened release" have the meanings specified in CERCLA, and the terms "solid waste" and "disposal" (or "disposed") have the meanings specified in RCRA; provided, however, that, to the extent the laws of the state in which any Assets are or were located currently or subsequently provide for a meaning for "hazardous substance," "release," "solid waste" or "disposal" which is broader than that specified in either CERCLA or RCRA, such broader meaning shall apply. 1.11 "Escrow" shall mean the escrow to be established by Berry and Tannehill with First American Title Insurance Company pursuant to Section 2.14 hereof. 1.12 "Financial Statements" shall have the meaning such term is given in Section 3.3 hereof. 1.13 "Governmental Entity" shall mean the United States of America, any state, county, city, municipality and any subdivision thereof, any court, administrative or regulatory agency, commission, department or body or other governmental authority or instrumentality or any entity or Person exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 1.14 "Indemnifying Party" shall have the meaning such term is given in paragraph 10.4a hereof.

4 1.15 "Indemnitee" shall have the meaning such term is given in paragraph 10.4a hereof. 1.16 "IRS" shall mean the Internal Revenue Service. 1.17 "Material" means any condition, change or effect that, individually or when taken together with all other such conditions, changes or effects that existed or occurred prior to the date of determination of the existence or occurrence of the material condition, change or effect, is or is reasonably likely to be materially adverse to the business, assets (including intangible assets), financial condition or results of operations of Berry or Tannehill respectively, in each case taken as a whole. 1.18 "Mineral Interest" shall mean the right to extract oil, gas and other hydrocarbons, unrestricted as to depth and with unlimited surface access for such purpose. 1.19 "Permitted Encumbrances" shall mean encumbrances which Berry accepts, in writing, including, but not limited to, encumbrances revealed on the preliminary title report approved by Berry as provided in this Agreement. 1.20 "Person" shall mean any individual, corporation, association, partnership, joint venture, trust, estate, unincorporated organization or Governmental Entity. 1.21 "Purchase Price" shall have the meaning such term is given in Section 2.2 hereof. 1.22 "Requisite Regulatory Approvals" shall have the meaning such term is given in paragraph 5.2a hereof. 1.23 "TEC Purchase Agreement" shall have the meaning such term is given in paragraph 2.12c hereof. 1.24 "TOC Purchase Agreement" shall have the meaning such term is given in paragraph 2.12c hereof. 1.25 "Warrant" shall have the meaning such term is given in the form of Exhibit 1 attached hereto and made a part hereof. ARTICLE II THE PURCHASE AND SALE 2.1 Transfer to Berry. In accordance with the provisions of this Agreement, Tannehill shall transfer and convey the Assets to Berry pursuant to a Grant Deed, Bill of Sale, Assignment of Leases, Rights of Way, Easements and Contracts (Unrecorded Documents),

5 Assignment of Leases, Rights of Way, Easements and Contracts (Recorded Documents), and Assignment of Oil and Gas Leases in the forms of Exhibits 2, 3, 4, 5 and 6 attached hereto and made a part hereof, respectively (collectively, the "Instruments of Transfer"), to be delivered at the Closing , in accordance with the provisions relating to the Closing, and Berry will acquire such Assets from Tannehill. 2.2 Purchase by Berry. Berry, in reliance upon the covenants, representations, warranties and indemnities of Tannehill contained herein, hereby agrees to purchase the Assets from Tannehill at the purchase price (the "Purchase Price") stated in Section 2.3 hereof. 2.3 Payment of the Purchase Price. As payment for the transfer and conveyance of the Assets by Tannehill to Berry, Berry shall deliver to Escrow for the benefit of Tannehill or its nominees at the Closing, in accordance with the provisions related to the Closing, a purchase price of Eighteen Million, Eighty-Seven Thousand, Four Hundred Thirteen Dollars and Fifty-Three Cents ($18,087,413.53) which shall be payable in the form of two (2) wire transfers with immediately available funds in the amounts of Two Million, Two Hundred Eighty-Five Thousand Dollars ($2,285,000) and Seven Million, Six Hundred Two Thousand, Four Hundred Thirteen Dollars and Fifty-Three Cents ($7,602,413.53) to an account specified by the Escrow Agent (as herein defined) prior to the Closing and a wire transfer in the amount of One Million Three Hundred Thousand Dollars ($1,300,000) to an account for the benefit of Sunset Investment Company, LLC, a California limited liability company ("Sunset") established pursuant to that certain Security Agreement, dated as of November 8, 1996, by and among Sunset, Solar Turbines, Inc., a Delaware corporation, et al. ("Monarch") and Berry (the "Sunset Security Agreement"); and seven (7) promissory notes, one (1) note in the amount of Three Million, Seven Hundred Thousand Dollars ($3,700,000) ("Note 1") and six (6) notes aggregating Three Million, Two Hundred Thousand Dollars ($3,200,000) (collectively, "Note 2") in substantially the same form as in Exhibits 7, 8A, 8B, 8C, 8D, 8E and 8F respectively, attached hereto and made a part hereof. At Closing, Note 2 shall be delivered to Tannehill or its assignee. Note 1 shall be delivered to the Secured Party (as that term is defined in the Sunset Security Agreement) pursuant to the terms of the Sunset Security Agreement. The Purchase Price shall be subject to the post-closing operating adjustment as provided in Section 2.4 hereof ("Operating Adjustment"). The Operating Adjustment shall not be handled through Escrow. Allocation of the Purchase Price among Tannehill Oil and the Partners shall be the responsibility of Tannehill Oil and the Partners after payment of the Purchase Price, subject to Section 2.6 hereof, and any adjustment pursuant to Section 2.4, and Berry shall be and is hereby held harmless by Tannehill Oil and the Partners from any claims or loss arising from disputes among Tannehill Oil and any of the Partners regarding the allocation of such Purchase Price among themselves. In addition, Tannehill Oil shall receive, at the Closing, a Warrant to acquire one hundred thousand (100,000) shares of Common Stock of Berry. 2.4 Operating Adjustment. a. October 1, 1996, at 12:01 a.m. shall be considered the "Effective Date" of this Agreement, and the oil and gas operations included in the Assets shall be deemed to be for the account of Berry from and after that date. The Operating Adjustment will occur

6 after the Closing in an amount equal to the difference between (i) the value of oil and gas produced by Tannehill Oil after the Effective Date and (ii) the normal cost of producing oil and gas after the Effective Date, as determined by Tannehill's customary accounting method adjusted to reflect only necessary operating revenues and expenses which would have been credited to or incurred by Berry had this transaction closed on the Effective Date. The oil tanks shall be gauged at 12:01 a.m. on the Effective Date. The value of oil and gas produced by Tannehill after the Effective Date shall be the net sales after royalties adjusted for the change in inventory between the Effective Date and the Closing. If the value of the oil and gas produced after the Effective Date is greater than said cost, then Tannehill shall pay Berry an Operating Adjustment equal to the amount of the difference. If the value of the oil and gas produced after the Effective Date is less than said cost, then Berry shall pay Tannehill an Operating Adjustment equal to the amount of the difference. b. In the event Tannehill does not provide Berry with its calculation of the Operating Adjustment (the "Calculation") prior to the Closing, Tannehill shall provide Berry with the Calculation within sixty (60) days after the Closing. Berry shall have immediate access at reasonable times to such books, records and invoices as it deems necessary to verify the Calculation. If Berry does not object to the Calculation within ten (10) days after receipt thereof by Berry, it shall be deemed to be final and binding upon the parties hereto. If Berry objects to the Calculation within such ten (10) days by specifying the items to which it objects, then the parties will attempt to mutually resolve any differences. If the differences cannot be resolved within twenty (20) days after Berry's objection to the Calculation, then all amounts agreed to shall be paid as provided below and the difference shall be resolved by arbitration under the Commercial Arbitration Rules of the American Arbitration Association. The costs of arbitration shall be shared equally by the parties. This Section 2.4 is the only Section or part of this Agreement which is subject to arbitration jurisdiction. c. Within three (3) days of the final determination of the Calculation, the party required to make the Operating Adjustment payment shall pay, via wire if requested, the Operating Adjustment payment agreed upon to the other party. d. For managing Tannehill Oil subsequent to September 30, 1996, Tannehill shall only be entitled to be credited for management fees at the rate of One Hundred Fifty Dollars ($150) per day and shall not be entitled to reimbursement of overhead costs including, but not limited to, legal expenses, accounting costs, loan fees and interest, contributions, dues and assessments, 401K retirement costs, severance payments, payments of accrued vacation pay, payments in lieu of compensatory time off or excessive travel or entertainment costs or expenses. Distributions to Partners subsequent to September 30, 1996, shall not be included in the costs. 2.5 Assets to be Conveyed to Berry. The Assets to be conveyed to Berry by Tannehill are the following assets owned and/or operated by Tannehill Oil: (a) all of the fee real property, oil and gas leases (including all of Tannehill's interest in that certain oil and gas lease known as the Geiger Lease (the "Geiger Lease")), and interests, easements and rights of way included in the operations of Tannehill Oil, including one hundred percent (100%) of the

7 Mineral Interests in such property, all as more particularly described in Exhibit 9 attached hereto and made a part hereof ("Real Property"); (b) all of the buildings, structures, tanks and pipelines on or under the property owned and/or operated by Tannehill Oil, as are described in the Disclosure Letter from Tannehill delivered to Berry at or prior to execution hereof, which shall refer to the Sections of this Agreement (the "Tannehill Disclosure Letter"); (c) all equipment and supplies related to or utilized in operating the oil properties and facilities owned and/or operated by Tannehill as described in the Tannehill Disclosure Letter, excluding only that portion of the "yellow iron," rolling stock, pulling rigs, drilling rig and miscellaneous office equipment and furnishings described in the Tannehill Disclosure Letter. Tannehill shall convey the Assets to Berry free and clear of all liens and Encumbrances (other than Permitted Encumbrances). Any asset of Tannehill Oil not described in Exhibit 9 or the Tannehill Disclosure Letter shall be conveyed to Berry subject to Berry's right, in its sole discretion, to refuse to accept such asset by written notice to Tannehill Oil within thirty (30) days after Berry has received written notice from Tannehill Oil that the asset is included in the Assets. Subject to paragraph 3.16a hereof, Tannehill Oil employees will not be employed by Berry. In addition, the Partners shall convey to Berry all their right, title and interest as Premises Lessor under that certain Cogeneration Premises Lease, dated as of August 15, 1994, between the Partners and Security Pacific Leasing Corporation, a Delaware corporation (the "Cogeneration Premises Lease"), free and clear of all Encumbrances, excluding Permitted Encumbrances. Tannehill shall convey to Berry all of its right, title and interest as Lessee under the Geiger Lease free and clear of all Encumbrances, except Permitted Encumbrances. 2.6 Allocation of Purchase Price. The parties agree to allocate the Purchase Price in accordance with the terms of Code Section 1060 and the Treasury Regulations promulgated thereunder, and to report this transaction for federal and state tax purposes in accordance with the agreed-upon allocation in the form of Exhibit 10 attached hereto and made a part hereof. 2.7 Closing. Subject to the provisions of Articles VII and VIII, the closing (the "Closing") shall take place at 10 a.m., Pacific Standard Time, at the offices of Berry Petroleum Company, 28700 Hovey Hills Road, Taft, California, at such date prior to December 1, 1996, as to which Berry and Tannehill may mutually agree. By written notice to the other party, either Berry or Tannehill shall have the right to extend the Closing an additional forty-five (45) days in the event that either party is not in a position to close by December 1, 1996. 2.8 Proration of Credits and Payment Obligations. All credits and payment obligations associated with the Assets, including but not limited to royalties, lease rentals and other forms of contractual payment shall be prorated between Tannehill and Berry as of the Effective Date. Tannehill shall be responsible and shall pay for all such items due, incurred or attributable to the period prior to the Effective Date and Berry shall be responsible and shall pay for all such items due, incurred or attributable to the period after such date. However, Berry shall not be responsible for any severance payments, vacation payments or payments in lieu of compensatory time off made to Tannehill Oil employees after the Effective Date.

8 2.9 Real Estate and Other Taxes. All real estate, occupation, ad valorem, personal property and severance taxes and charges on any of the Assets shall be prorated as of the Effective Date. Tannehill shall pay all such items for all periods prior to such date, however, Berry shall be entitled to all refunds and rebates with regard to such periods. In the event Berry pays additional taxes or charges which are assessed upon or levied against any of the Assets after the Closing with respect to any period prior to the Effective Date, Tannehill shall promptly reimburse Berry the amount thereof upon presentation of a receipt therefor. If Tannehill elects to challenge the validity of such bill or any portion thereof, Berry shall extend reasonable cooperation to Tannehill in such efforts, at no expense to Berry. 2.10 Documentation of Sale and Transfer of Ownership. Except as otherwise provided herein, the Assets to be conveyed by Tannehill to Berry shall be conveyed pursuant to the Instruments of Transfer in such form or forms customary and necessary to properly transfer the Assets according to the requirements of any applicable federal, state or local agency. a. Tannehill shall deliver the Assets to Berry at the Closing subject to the reservations, limitations, conditions and restrictions contained in this Agreement and the Instruments of Transfer. b. Tannehill shall make available at Tannehill's offices or such other place as deemed appropriate by Berry until the Closing, during normal business hours, for examination by Berry, such title information and abstracts as may then be available in Tannehill's files. 2.11 Approval of Title and Condition of the Real Property. Tannehill has provided a preliminary title report to Berry regarding the Real Property. Berry shall accept or reject title and condition of the Real Property as provided in Section 7.9 hereof. 2.12 Closing Procedure. At the Closing, through Escrow, the transactions listed below shall occur, all subject to and conditioned upon the execution and delivery of a Certificate of Satisfaction described in paragraph 2.12e hereof. a. Tannehill shall deliver to Berry originals (unless otherwise noted) of each of the following documents: (1) Executed Instruments of Transfer. (2) All leases, contracts, agreements, indentures and other instruments described in or attached to the Tannehill Disclosure Letter. (3) Executed Certificate of Compliance of Tannehill Oil. (4) Executed Opinion of Counsel to Tannehill.

9 (5) A CLTA Policy of Title Insurance on the Real Property described in Exhibit 9 if Berry elects not to obtain an ALTA Policy. (6) Tannehill Disclosure Letter. b. Berry shall deliver to Tannehill originals (unless otherwise noted) of each of the following documents: (1) Executed Certificate of Compliance of Berry. (2) Executed Opinion of Counsel to Berry. (3) Berry Disclosure Letter. c. Berry and Tannehill Oil will execute and mutually deliver two (2) originals of a statement that the Purchase and Sale Agreement between Berry and Tannehill Oil Company, Inc., a California corporation, dated November 8, 1996 ("TOC Purchase Agreement") and the Purchase and Sale Agreement between Berry and Tannehill Electric Company, Inc., a California corporation, dated November 8, 1996 ("TEC Purchase Agreement") are in condition to close. d. Berry will deliver to Tannehill the Purchase Price and the Warrant as provided in Section 2.3 hereof. e. Berry and Tannehill Oil will execute and mutually deliver two (2) originals of the Certificate of Satisfaction in the form of Exhibit 11 attached hereto and made a part hereof. By signing this Agreement, each of the Partners hereby authorizes Tannehill Oil to execute the Certificate of Satisfaction. 2.13 Post Closing Access to Documents. Tannehill is currently involved in litigation with Baker Performance Chemicals, Inc. (the "Baker Litigation") involving the alleged use of ineffective, diluted or blended chemicals in the treatment of oil and water on the Tannehill property. Berry shall afford to Tannehill and to the employees, agents and authorized representatives of Tannehill such reasonable access to the files, agreements, documents and books and records of Tannehill for periods prior to the Closing as may be requested by Tannehill in order that Tannehill may have full opportunity to obtain information reasonably necessary in connection with the Baker Litigation. Tannehill hereby releases Berry from all liability arising out of the entry by Tannehill or its employees, agents or authorized representatives onto the business premises of Berry for purposes of obtaining such information. Tannehill hereby agrees to indemnify, defend and hold harmless Berry against all liability, demands, claims, costs, losses, damages, recoveries, settlements and expenses incurred by Berry arising from or related to the conduct by Tannehill or its employees, agents and authorized representatives in connection with obtaining such information.

10 Tannehill will cooperate with Berry and its agent on any post-closing audit or financial review that is required of Berry due to this transaction. 2.14 Escrow. First American Title Insurance Company, a California corporation, whose address is 4540 California Avenue, Suite 100, P.O. Box 1945, Bakersfield, California 93309, is hereby appointed to act as escrow agent ("Escrow Agent") to conduct the purchase and sale of the Assets. Berry and Tannehill shall execute written instructions to the Escrow Agent, substantially in the form of Exhibit 12 attached hereto and made a part hereof, to provide for the payment of liabilities secured by the Assets and the release of Encumbrances, other than Permitted Encumbrances, against the Assets. Berry and Tannehill further agree that Tannehill shall be responsible for and pay for all Escrow fees and charges. ARTICLE III REPRESENTATIONS AND WARRANTIES OF TANNEHILL Except as set forth in the Tannehill Disclosure Letter, Tannehill hereby represents and warrants to and covenants with Berry as follows: 3.1 Partnership Organization. Tannehill Oil is a general partnership duly organized, validly existing and in good standing under the laws of the State of California and has full power and authority to conduct its business as currently conducted and to own, operate and lease the Assets it now owns, operates or holds under lease. Tannehill Oil has previously delivered to Berry true and correct copies of the Agreement of Partnership, any amendments thereto, the Fictitious Business Name Statement, and the Statement of Partnership, all as in effect on the date hereof. 3.2 Effect of Agreement; Consents. a. The execution, delivery and performance of this Agreement by Tannehill and the consummation by Tannehill of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or authorization of any Person; (ii) do not violate any provision of the Agreement of Partnership of Tannehill Oil; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other Governmental Entity to which Tannehill is subject or any of the Assets are bound; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), of any agreement to which Tannehill is a party or to which any of the Assets are subject, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. By signing this Agreement, each of the Partners hereby consents to the sale of the Assets by Tannehill Oil to Berry.

11 b. The execution, delivery and performance of this Agreement by Tannehill will not result in the loss of any governmental license, franchise or permit possessed by Tannehill related to the Assets or give a right of acceleration or termination to any party to any agreement or other instrument to which Tannehill is a party and by which the Assets are bound, or result in the loss of any right or benefit under such agreement or instrument. 3.3 Financial Statements. Tannehill has heretofore furnished to Berry true and correct copies of the balance sheets of Tannehill Oil as of December 31, 1994, December 31, 1995, and September 30, 1996, and the related statements of revenues and expenses for the periods then ended (collectively, the "Financial Statements"). The Financial Statements have been prepared in accordance with the books and records of Tannehill Oil and in conformity with generally accepted accounting principles applied, except as otherwise noted therein, on a basis consistent with prior periods, and fairly present, in all material respects, the financial position and results of operations of Tannehill Oil as at and for the periods specified therein. As of September 30, 1996, Tannehill Oil did not have any liability of any kind or manner, either direct, accrued, absolute or otherwise, which was required to be disclosed by generally accepted accounting principles and which was not reflected or disclosed in the Financial Statements and there have been no changes in Tannehill Oil's method of accounting for tax purposes or other purposes except as disclosed in the Tannehill Disclosure Letter. 3.4 Taxes and Tax Returns. Tannehill Oil has filed all federal, state, local and foreign income and other tax returns required to be filed by it, and each such return is complete and accurate in all material respects. The taxes shown due on such returns have been paid and there are no taxes, interest, penalties, assessments or deficiencies (any of the foregoing being referred to herein as a "Tax") claimed to be due in respect of such tax returns or claimed in writing to be due by any taxing authority. The tax returns of Tannehill Oil have not been audited by the IRS, nor has Tannehill Oil received notice of any examination being conducted by the IRS or any other taxing authority for any fiscal year. All other taxes, including property taxes, imposed by the United States and by any state, municipality, subdivision or instrumentality of the United States, or other taxing authority, which are due and payable by Tannehill Oil have been paid in full or will be paid or provided for up to the Closing date. 3.5 Absence of Adverse Change. Since December 31, 1995, there has not been (a) any Material adverse change in the condition of the Assets to be acquired by Berry; (b) any damage, destruction or loss adversely affecting the Assets; (c) any incurrence by Tannehill Oil or by Partners of or entry into any liability, mortgage, lien or transaction affecting the Assets; (d) any guarantee of or grant of a security interest to secure a third Person's obligations by Tannehill; (e) except as provided in the Tannehill Disclosure Letter, any commitment by Tannehill Oil relating to the Assets; or (f) any agreement, in writing or otherwise, or any partnership action with respect to the foregoing. No event or condition has occurred or exists and Tannehill is not aware of any event or condition that has occurred or exists and that could result in a Material adverse change in the Assets since December 31, 1995. 3.6 No Misleading Statements. This Agreement, the exhibits hereto and the information referred to herein, when taken as a whole, do not include any untrue statement of

12 a material fact and do not omit any material fact necessary to make the statements contained herein or therein not misleading. 3.7 No Significant Transactions. Except for the execution of this Agreement, since December 31, 1995, Tannehill Oil has not engaged in any Material transactions and will not engage in any Material transactions prior to the Closing. 3.8 Properties, Title and Related Matters. a. Tannehill has good title to all of the personal property included in the Assets free and clear of all Encumbrances, except for Permitted Encumbrances. b. Other than as set forth on Exhibit 9, there is no real property owned by Tannehill. Tannehill has title to all of the Real Property (except the Geiger Lease), in fee simple absolute, including one hundred percent (100%) of the Mineral Interests therein, free and clear of all Encumbrances. Tannehill holds its interest as Lessee under the Geiger Lease free and clear of all Encumbrances (other than Permitted Encumbrances). No parcel of Real Property is subject to any governmental decree or is being condemned, expropriated or otherwise taken by any public authority, with or without payment of compensation therefor, and no such condemnation, expropriation or taking has been proposed. The Tannehill Disclosure Letter contains a description of all buildings, structures, improvements, tanks and pipes or other fixtures located on or under the fee Real Property. Each Partner will transfer all of its right, title and interest, whether held directly or indirectly, in and to the Geiger Lease to Berry. c. Other than as set forth in Exhibits 4, 5 and 9, Tannehill has no easements or rights of way and no real property is leased by Tannehill. Tannehill has good title to all the leasehold estates pursuant to which the real property described in the Tannehill Disclosure Letter is leased, free and clear of all Encumbrances, except for Permitted Encumbrances. Tannehill has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any lease, easement, right of way or other agreement pursuant to which the Real Property is leased or held and all of such leases, easements, rights of way or other agreements are in full force and effect. There are no pending or threatened disputes with respect to any lease, easement, right of way or other agreement pursuant to which the Real Property is leased or held and the lessor or grantor thereunder has not breached any provision of and is not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any such lease, easement, right of way or other agreement. The Tannehill Disclosure Letter contains a description of all structures, improvements, tanks and pipes or other fixtures located on or under any leases, easements or rights of way described in Exhibits 4, 5 and 9. d. Since the physical inspection by Berry on September 5, 1996, the maintenance and operation of buildings, machinery, wells, pipelines and equipment of Tannehill Oil have been consistent with the past maintenance and operation of such Assets, ordinary wear and tear excepted, and, except as described in the Tannehill Disclosure Letter, all machinery,

13 wells, pipelines and equipment are operative in all Material respects. Berry shall acquire such Assets AS IS and WHERE IS. Tannehill makes no representations or warranties as to the suitability of any Asset for any particular use. e. Tannehill is not in Material violation of and, except as disclosed in the Tannehill Disclosure Letter, Tannehill has not received any written notice of any violation of any zoning regulation, ordinance, law, rule, order, regulation or requirement relating to the Assets or operation of its leased or owned properties which remains uncured or which has not been dismissed where failure to comply therewith would have a Material adverse effect on Tannehill Oil or the Assets. f. Attached to the Tannehill Disclosure Letter is a correct and complete list and copies of all policies of fire, liability and other forms of insurance held by Tannehill presently in force with respect to the Assets. Such policies are in full force and effect and assignable and Tannehill is not in default under any of them. 3.9 Legal Proceedings. Except as disclosed in the Tannehill Disclosure Letter, there is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending or threatened against Tannehill Oil or the Assets, or affecting any of the Assets, which if adversely determined would have a Material adverse effect on the Assets. Tannehill is not in violation of or default under any laws, ordinances, regulations, judgments, injunctions, orders or decrees (including, without limitation, any immigration laws or regulations) of any court or other Governmental Entity applicable to its business, which violations or defaults would have a Material adverse effect on the Assets. There are no Material judgments, orders, injunctions or decrees of any Governmental Entity regarding any agreement in which Tannehill is a named party or any of the Assets are identified and subject. Except for the Baker Litigation, there is no pending litigation in or to which Tannehill is a named party or any of the Assets of Tannehill are identified and subject. 3.10 Records. Tannehill Oil has records that accurately reflect its transactions in all material respects. 3.11 No Undisclosed Material Liabilities. There are no Material liabilities of Tannehill, whether or not accrued and whether or not contingent or absolute, or any existing condition, situation or set of circumstances that it expects, or could expect, to result in such liability, other than liabilities disclosed in the Financial Statements, except liens vested by deeds of trust as set forth in the Tannehill Disclosure Letter. All such liens shall be removed prior to the Closing. 3.12 Contracts. a. All contracts, agreements, indentures and other instruments to which Tannehill is a party are attached to the Tannehill Disclosure Letter. Except for the agreements attached to the Tannehill Disclosure Letter, Tannehill is not a party to or bound by (i) any agreement, contract or commitment limiting the freedom of Tannehill or any Affiliate

14 of Tannehill to engage in any line of business, to own, operate, sell, transfer, pledge or otherwise dispose of or encumber any Asset or to compete with any Person in any geographical area; (ii) any agreement, contract or commitment relating to the Assets; or (iii) any agreement, contract or commitment that will have a Material adverse effect on the Assets. b. Except as disclosed in the Tannehill Disclosure Letter, Tannehill Oil and the Partners with respect to the Assets have not breached any provision of or are not in default (and no event or circumstance exists that with notice or the lapse of time, or both, would constitute a default) under the terms of any agreement (including the Cogeneration Premises Lease) attached to the Tannehill Disclosure Letter. All contracts, agreements, indentures and other instruments attached to the Tannehill Disclosure Letter are in full force and effect. There are no pending or threatened disputes with respect to the contracts, agreements, indentures or instruments attached to the Tannehill Disclosure Letter. 3.13 Brokerage. No investment banker, broker or finder has acted directly or indirectly for Tannehill in connection with this Agreement or the transactions contemplated hereby. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect thereof based in any way on agreements, arrangements or understandings made by or on behalf of Tannehill. Tannehill agrees to indemnify, defend and hold Berry harmless from and against any and all claims, liabilities or obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Tannehill with respect to any such fee, expense or commission. 3.14 Execution and Delivery. Tannehill Oil has full power and authority to execute and deliver this Agreement and to perform its obligations hereunder. The execution and delivery of this Agreement by Tannehill Oil and the performance of its obligations hereunder have been duly authorized by all Partners. This Agreement has been duly executed and delivered by Tannehill and constitutes a legal, valid and binding obligation of Tannehill, enforceable against it in accordance with its terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 3.15 Environmental Matters. a. To the best of Tannehill's knowledge, Tannehill has at all times operated in compliance with all applicable limitations, restrictions, conditions, standards, prohibitions, requirements and obligations of Environmental Laws and related orders of any court or other Governmental Entity. b. To the best of Tannehill's knowledge, Tannehill is not in violation of or subject to (i) any existing, pending or threatened action, suit, investigation, inquiry or proceeding by or before any court or other Governmental Entity or (ii) any remedial obligations, in each case under any applicable Environmental Law relating to the Assets or operations

15 conducted thereon by any Person at any time during which such Assets were owned, leased, used or operated by or for the benefit of Tannehill, or by any Person prior to such time to the extent Tannehill has knowledge of such matters. c. To the best of Tannehill's knowledge, all notices, permits, licenses or similar authorizations, if any, required to be obtained or filed by Tannehill under all applicable Environmental Laws in connection with its past or present operation or use of any and all Assets or the conduct of its business, including but not limited to past or present treatment, storage, disposal or release of a hazardous substance or solid waste into the environment, have been duly obtained or filed. d. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Assets or by any Person in connection with the ownership, lease, use or operation of the Assets have, at any time during which such Assets were owned, leased, used or operated by or for the benefit of Tannehill or any Affiliate thereof, been transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws. e. To the best of Tannehill's knowledge, all hazardous substances and solid wastes generated at any and all of the Assets or by any prior owner or operator of the Assets were transported, stored, treated and disposed of by carriers or treatment, storage and disposal facilities authorized or maintaining valid permits under all applicable Environmental Laws. f. To the best of Tannehill's knowledge, no Person has, at any time during which the Assets were owned, leased, used or operated by or for the benefit of Tannehill, disposed of or released any hazardous substance or solid waste on or under the Assets, except in compliance with all applicable Environmental Laws. g. To the best of Tannehill's knowledge, no Person has disposed of or released any hazardous substance or solid waste on, under or around the Assets, except in compliance with all applicable Environmental Laws. h. To the best of Tannehill's knowledge, no facts or circumstances exist which could reasonably be expected to result in any liability to any Person with respect to the current or past business and operations of Tannehill or the Assets in connection with any release, transportation or disposal of any hazardous substance or solid waste or action taken or omitted that was not in full compliance with or was in violation of any applicable Environmental Law. 3.16 Employees. a. The Tannehill Disclosure Letter lists all employees, their addresses, job titles, job descriptions and number of years employed by Tannehill Oil. Berry shall be

16 provided the opportunity to interview, and if desired, may offer employment to any of Tannehill's employees as selected in Berry's sole discretion. b. Employees of Tannehill Oil shall not assert claims against Berry based on employment by Tannehill Oil for severance, retirement benefits, health benefits, deferred compensation, violations of any federal, state or local laws or statutes, wages or other benefits or compensation. Employees of Tannehill Oil not employed by Berry shall not assert any claim against Berry for discriminatory hiring practices based on state or federal laws or statutes, union contracts or for benefits based upon the Employee Retirement Income Security Act of 1974, as Amended ("ERISA"). c. The Tannehill Disclosure Letter sets forth a list of all plans and other arrangements involving direct or indirect compensation or benefits to Partners, consultants or providing employee benefits to employees of Tannehill Oil, including, without limitation, all "employee benefit plans" as defined in Section 3(3) of ERISA, and all bonus, incentive, deferred compensation, supplemental retirement, severance and other similar fringe or employee benefit plans, and all employment or executive compensation agreements (collectively, the "Benefit Plans"). True and complete copies of the Benefit Plans have been made available to Berry. To the extent applicable, the Benefit Plans comply, in all material respects, with the requirements of ERISA and the Code, and any Benefit Plan intended to be qualified under Section 401(a) of the Code has been determined by the IRS to be so qualified. No Benefit Plan is covered by Title IV of ERISA or Section 4112 of the Code. No Benefit Plan has incurred any liability or penalty under Section 4975 of the Code or Section 502(i) of ERISA. Each Benefit Plan has been maintained and administered in all material respects in compliance with its terms and with ERISA and the Code to the extent applicable thereto. There are no pending or anticipated claims against or otherwise involving any of the Benefit Plans and no suit, action or other litigation (excluding claims for benefits incurred in the ordinary course of Benefit Plan activities) has been brought against or with respect to any such Benefit Plan, except for any of the foregoing which would not have a Material adverse effect. Neither Tannehill Oil nor any entity under "common control" within the meaning of ERISA Section 4001 with Tannehill Oil or its Affiliates has contributed to, or been required to contribute to, any "multiemployer plan" (as defined in Sections 3(37) and 4001(a)(3) of ERISA). Except as may be required by law, Tannehill Oil does not maintain or contribute to any plan or arrangement which provides or has any liability to provide life insurance, medical or other employee welfare benefits to any employee or former employee upon his retirement or termination of employment, and Tannehill has never represented, promised or contracted (whether in oral or written form) to any employee or former employee that such benefits would be provided. d. Except as disclosed in the Tannehill Disclosure Letter, Tannehill Oil is not currently nor has it ever been a party to any employee pension or welfare plan to which ERISA applies or to which Tannehill Oil was required to make contributions for the benefit of its employees. e. Neither Tannehill Oil nor any of its Affiliates is a party to, or bound by, any collective bargaining agreement, contract or other agreement or understanding

17 with a labor union or labor union organization. There is no unfair labor practice or labor arbitration proceeding pending or threatened against Tannehill Oil or any of its Affiliates relating to their business which, if determined adversely to Tannehill Oil or the Affiliate would have a Material adverse effect. There are no organizational efforts with respect to the formation of a collective bargaining unit presently being made or threatened involving employees of Tannehill Oil or any of its Affiliates. 3.17 Investigation. Tannehill and its agents, counsel and accountants have had reasonable access to representatives of Berry to make such investigations as they desired with respect to the business, operations and affairs of Berry in connection with the transactions contemplated hereby. In determining whether to consummate the transactions contemplated hereby, Tannehill is relying solely on the terms, covenants, representations, warranties and indemnities herein and on their own investigations into and analysis of the business, operations and condition (financial or otherwise) of Berry and have not relied on Berry, or its officers or directors, with respect to the interpretation of data relating to the valuation of Tannehill, the income tax ramifications of this purchase and sale, and/or the ability of Berry to operate the Assets. ARTICLE IV REPRESENTATIONS AND WARRANTIES OF BERRY Except as set forth in the Disclosure Letter from Berry delivered to Tannehill at or prior to the execution hereof, which shall refer to the relevant Sections of this Agreement (the "Berry Disclosure Letter"), Berry hereby represents and warrants to and covenants with Tannehill as follows: 4.1 Corporate Organization. Berry is a corporation duly organized, validly existing and in good standing under the laws of the State of Delaware and has all requisite corporate power and authority to carry on its business as it is now being conducted, and to execute, deliver and perform this Agreement and to consummate the transactions contemplated hereby. 4.2 Due Authorization, Execution and Delivery; Effect of Agreement. The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby have been duly authorized by all necessary corporate action on the part of Berry. This Agreement has been duly and validly executed and delivered by Berry and constitutes the legal, valid and binding obligation of Berry, enforceable against it in accordance with its terms, except to the extent that such enforceability (a) may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to creditors' rights generally; and (b) is subject to general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). The execution, delivery and performance by Berry of this Agreement and the consummation by Berry of the transactions contemplated hereby (i) do not require the consent, approval, clearance, waiver, order or

18 authorization of any Person, except as otherwise disclosed in the Berry Disclosure Letter; (ii) do not violate any provision of the Certificate of Incorporation or Bylaws of Berry; (iii) do not conflict with or violate any permit, concession, grant, franchise, statute, law, rule or regulation of any Governmental Entity or any order, judgment, award or decree of any court or other Governmental Entity to which Berry is subject; and (iv) do not conflict with, or result in any breach of, or default or loss of any right under (or an event or circumstance that, with notice or the lapse of time, or both, would result in a default), or the creation of an Encumbrance pursuant to, or cause or permit the acceleration prior to maturity of any amounts owing under, any indenture, mortgage, deed of trust, lease, or other agreement to which Berry is a party, in each case, which failure, violation, conflict or breach would, in the aggregate, materially hinder or impair the consummation of the transactions contemplated by this Agreement. The issuance of the Warrants in accordance with this Agreement has been duly authorized by all necessary corporate action on the part of Berry. 4.3 Consents. Except as otherwise disclosed in the Berry Disclosure Letter, no consent, approval or authorization of, or exemption by, or filing with, any Governmental Entity or any Person is required in connection with the execution, delivery or performance by Berry of this Agreement or the taking of any other action contemplated hereby. 4.4 Litigation. There is no legal, judicial, administrative or governmental arbitration or other action or proceeding or governmental investigation pending against Berry, or threatened against Berry, which seeks to enjoin or obtain damages in respect of the consummation of the transactions contemplated hereby. 4.5 Brokerage. No investment banker, broker, finder or other Person is entitled to any brokerage or finder's fee or similar commission in respect of this Agreement or the transactions contemplated hereby based in any way on agreements, arrangements or understandings made by or on behalf of Berry. Berry agrees to indemnify and hold Tannehill Oil and the Partners harmless from and against any and all claims, liabilities or obligations with respect to all fees, commissions or expenses asserted by any Person on the basis of any act, statement, agreement or commitment alleged to have been made by Berry with respect to any such fee, commission or expense. 4.6 Approvals. No approval of the stockholders of Berry is necessary or required under Delaware General Corporation Law, as currently in effect, or Berry's Certificate of Incorporation or Bylaws for the consummation of the transactions contemplated by this Agreement.

19 ARTICLE V COVENANTS OF TANNEHILL From and after the date of this Agreement until the Closing, except as expressly authorized by this Agreement or expressly consented to in writing by Berry, Tannehill covenants and agrees with Berry as follows: 5.1 Access to Tannehill. Tannehill shall afford to Berry and to the employees, agents, lenders, investors and authorized representatives of Berry and to their respective counsel and accountants such reasonable access to the Assets, officers, offices, equipment, files, agreements, documents, and books and records of Tannehill (including, without limitation, engineering data and information, computer programs, tapes and other records), and the opportunity to make notes, abstracts and copies therefrom, as may be requested by Berry in order that Berry may have full opportunity to make such reasonable investigations as it shall desire with respect to the business, operations, Assets and affairs of Tannehill in connection with the transactions contemplated hereby and Tannehill shall furnish Berry with such additional financial and operating data and other information as to the business, operations and Assets of Tannehill as Berry shall, from time to time, reasonably request for such purpose. Berry hereby releases Tannehill from all liability arising out of the entry by Berry or its employees, agents, lenders, investors or authorized representatives onto the business premises of Tannehill for purposes of conducting the investigation contemplated by this Section 5.1. Berry hereby agrees to indemnify, defend and hold harmless Tannehill against all liability, demands, claims, costs, losses, damages, recoveries, settlements and expenses incurred by Tannehill arising from or related to the conduct by Berry or its employees, agents, lenders, investors or authorized representatives of the investigation. 5.2 Governmental Approvals; Consents. a. Tannehill shall use its best efforts, and shall cooperate with Berry, to obtain all permits, approvals and consents, and to make all filings, necessary or required to be obtained or made, and to begin and cause all waiting periods required to lapse, for Berry to have full use and enjoyment of the Assets subsequent to the purchase and sale and for the consummation by Tannehill of the transactions contemplated by this Agreement under any applicable federal law or the applicable laws of any state having jurisdiction over the transactions contemplated hereby (all such permits, approvals, filings and consents and the lapse of all such waiting periods being referred to as the "Requisite Regulatory Approvals"). b. Tannehill shall use its best efforts to obtain all consents, approvals, clearances, waivers, orders or authorizations of any Person necessary to be obtained by Tannehill for Berry to have full use and enjoyment of the Assets subsequent to the purchase and sale and for the consummation of the transactions by Tannehill contemplated by this Agreement. 5.3 Litigation and Claims. Tannehill shall promptly inform Berry in writing of any litigation, or of any claim or controversy or contingent liability of which Tannehill

20 becomes aware that might reasonably be expected to become the subject of litigation, against Tannehill Oil or affecting any of the Assets. 5.4 Notice of Changes. Tannehill shall promptly inform Berry in writing if Tannehill becomes aware of any change that shall have occurred or that shall have been threatened (or any development that shall have occurred or that shall have been threatened involving a prospective change) in the financial condition, results of operations, business of the Assets or of Tannehill Oil that is or with the exercise of reasonable business judgment would be expected to have an adverse effect on the Assets. Tannehill shall promptly inform Berry in writing if any representation or warranty made by Tannehill in this Agreement shall cease to be accurate or upon the occurrence of any breach of any covenant or other agreement required by this Agreement to be performed or complied with by Tannehill. 5.5 Conduct of Business Operations. Tannehill shall not, without the prior written consent of Berry: a. Materially increase the annual level of compensation of any employee, nor increase at all the annual level of compensation of any employee whose compensation from Tannehill Oil during the last preceding fiscal year exceeded Fifty Thousand Dollars ($50,000), and shall not grant any unusual or extraordinary bonuses, benefits or other forms of direct or indirect compensation to any employee, officer, partner or consultant except in keeping with past practices by formulas or otherwise. Nothing in this paragraph 5.5a shall prohibit the payment by Tannehill of severance payments, accrued and unpaid vacation pay, or payments in lieu of compensatory time-off to its employees; b. From the Effective Date to the Closing, fail to use its best efforts to prevent the daily production averaged over any calendar week during the period from declining below one thousand three hundred (1,300) barrels per day. c. Other than in the ordinary course of business, sell, lease or otherwise dispose of any Assets or any interests therein, or enter into, or consent to the entering into of, any agreement granting to any third Person a right to purchase, lease or otherwise acquire any Assets or interests therein, except as otherwise provided for in this Agreement; d. Enter into any agreement or incur any obligation, the terms of which would be violated by the consummation of the transactions contemplated by this Agreement; e. Organize, invest in or acquire an equity interest in any corporation, partnership, joint venture, association or other entity or organization; f. Create, incur, assume, guarantee or otherwise become liable or obligated with respect to any indebtedness for monies borrowed or make any loan or advance to any Person (other than trade receivables in the ordinary course of business);

21 g. (i) Enter into any new line of business with respect to the Assets; (ii) change its investment, liability management and other material policies in any respect; (iii) incur or commit to any capital expenditures or financing; (iv) acquire or agree to acquire by merging or consolidating with, or acquire or agree to acquire by purchasing all or substantially all of the assets of, or in any manner, any Person; (v) otherwise acquire or agree to acquire any assets for a total consideration in the aggregate in excess of Ten Thousand Dollars ($10,000); or (vi) waive any right under or cancel any contract, debt or claim listed in any exhibits hereto or the Tannehill Disclosure Letter, which waiver or cancellation would have an adverse effect on the Assets; h. Enter into any contract, commitment or arrangement (or amend, modify, supplement or otherwise alter the terms of any existing contract, agreement or instrument attached to the Tannehill Disclosure Letter) with any Person; i. Maintain its books of account other than in the usual, regular and ordinary manner in accordance with good business practices or make any change in any of its accounting methods or practices; or j. Take any action that would or might reasonably be expected to result in any of the conditions to Closing set forth in Article VII hereof not being satisfied. 5.6 Maintain Assets and Operations. During the period from the date hereof through the Closing, Tannehill shall (a) carry on its business in the usual, regular and ordinary course in a good and diligent manner consistent with sound business practices and in compliance with all applicable laws, rules and regulations; (b) not introduce any new method of management or operation; (c) use its best efforts to preserve its business organization, maintain its rights and franchises, keep available the services of its officers and employees and preserve the goodwill and its relationships with customers, suppliers and others having business dealings with it; (d) preserve in full force and effect all leases, operating agreements, easements, rights of way, permits, licenses, contracts and other agreements which relate to the Assets (other than those expiring by their terms); (e) use its best efforts to perform or cause to be performed all of its obligations in or under any of such leases, agreements and contracts; (f) use its best efforts to safeguard and maintain secure all reports and other confidential data in the possession of Tannehill relating to the Assets; and (g) use its best efforts to operate its business and activities in the same manner as they have been carried out and to maintain the same level of expenditure as have previously been incurred in connection with such business and activities. 5.7 Exclusive Dealing. Tannehill shall not directly or indirectly, through any representative or otherwise, solicit or entertain offers from, negotiate with or in any manner encourage, discuss, accept or consider any proposal of any Person relating to the acquisition of the assets or business, in whole or in part, of Tannehill, whether through direct purchase, consolidation or other business combination (other than sales of inventory or in the ordinary course of business) so long as this Agreement has not been terminated. Tannehill recognizes that Berry has and continues to incur substantial time and expense in evaluating this transaction. Tannehill acknowledges that Berry, in reliance on this Section 5.7, will continue to incur

21A additional time, effort and expense. Tannehill has agreed to this provision due to the unique terms specified in the AIP and contemplated in this transaction. 5.8 Termination Fee. In the event that Tannehill breaches Section 5.7 hereof and within twelve (12) months after such breach or termination, Tannehill closes a transaction with an unrelated third party relating to the acquisition of a Material portion of the Assets or the business of Tannehill Oil, in whole or part, whether through direct purchase, merger, consolidation or other business combination (other than sales of inventory or immaterial portions of Tannehill's Assets in the ordinary course), then, immediately upon such closing, Tannehill shall pay to Berry the sum of Two Million Three Hundred Eighty Thousand Dollars ($2,380,000). Such payment shall constitute liquidated damages and, in the absence of fraud or bad faith, shall be in lieu of any other penalty or remedy Berry might otherwise seek, the parties having determined that the actual damages resulting from the events for which such

22 liquidated damages are to be awarded would be extremely difficult and uncertain to calculate and that liquidated damages above represent a good faith estimate of such actual damages. ___________ __________ Tannehill Oil initials Berry initials ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ ___________ ___________ ___________ __________ Partners' initials 5.9 Taxes. Tannehill shall pay any documentary transfer tax due on the purchase and sale of the Assets. 5.10 Approval of Transaction. Tannehill shall take all actions necessary to approve this Agreement. ARTICLE VI COVENANTS OF BERRY Berry hereby covenants and agrees with Tannehill as follows: 6.1 Cooperation. Subject to the terms and conditions of this Agreement, Berry shall cooperate with Tannehill to use its best efforts to secure all necessary consents, approvals, authorizations, exemptions and waivers from all Persons and Governmental Entities as shall be required to be obtained by Berry in order to enable Berry to consummate the transactions contemplated hereby. 6.2 Governmental Approvals. Berry shall use its best efforts, and shall cooperate with Tannehill, to obtain all Requisite Regulatory Approvals. 6.3 Disclosure Responsibilities. Berry, as a reporting company under Section 12 of the Securities Exchange Act of 1934, as amended ("Exchange Act"), and listed company under the New York Stock Exchange (the "NYSE"), is required to comply with certain disclosure requirements regarding its business activities, including, but not limited to, the issuance of press releases and the preparation and filing of periodic reports with the Securities and Exchange Commission. In order to comply with the disclosure requirements of the Exchange Act and NYSE, as well as the timing of such disclosures, all statements to the public, including press releases, shall be at the sole discretion of Berry.

23 6.4 Authorization of Warrant. Berry shall take all actions to qualify the issuance of the Warrant to Tannehill Oil in compliance with all applicable state securities laws or to comply with any available exemptions from such qualification requirements. However, Berry shall not be obligated to register the Warrant, or the shares of Class A Common Stock underlying the Warrant, under the Securities Act of 1933. 6.5 Cooperation in Exchange. Berry will cooperate with Tannehill in the completion of one or more tax-deferred exchange transactions and shall execute such documents as are reasonably required for that purpose, provided that Berry shall not be required to take title to any other property, shall not be put at any extra cost or expense, shall not be subject to any additional liability, and the date for the Closing shall not be extended by virtue of any requested cooperation. ARTICLE VII CONDITIONS TO OBLIGATIONS OF BERRY The obligations of Berry to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Berry) on or prior to the Closing of all of the following conditions: 7.1 Accuracy of Representations and Warranties. The representations and warranties of Tannehill set forth in this Agreement shall be true and correct in all respects as of the date when made and at and as of the Closing. 7.2 Performance of Covenants and Agreements. Tannehill shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by them prior to or at the Closing. None of the events or conditions entitling Berry to terminate this Agreement under Article IX hereof shall have occurred and be continuing. 7.3 Consents. Any consent required for the consummation of this purchase and sale under any agreement, contract, license or other instrument described in any exhibit hereto or referred to herein, or for the continued enjoyment by Berry of any benefits of such agreement, contract, license or other instrument after the Closing, which consent Tannehill is specifically obligated to obtain pursuant to this Agreement, shall have been obtained and be effective. 7.4 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect. 7.5 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Nordman, Cormany, Hair & Compton, counsel to Berry.

24 7.6 Partners' Certificate. Berry shall have received a certificate of Tannehill Oil, substantially in the form of Exhibit 13 attached hereto and made a part hereof, satisfactory in form and substance to Berry, executed on behalf of Tannehill Oil by its Managing General Partners, as to compliance with the matters set forth in Sections 7.1, 7.2, 7.3 and 7.4 of this Agreement. By signing this Agreement, each of the Partners hereby authorizes the Managing General Partners of Tannehill Oil to execute such Certificate. 7.7 Opinion of Counsel. Berry shall have received the opinion of Roger Coley, counsel to Tannehill, in form and content satisfactory to Berry, substantially in the form of Exhibit 14 attached hereto and made a part hereof. 7.8 Closing of TEC and TOC Purchase Agreements. The Closing shall not occur unless the Closings contemplated by the TEC Purchase Agreement and the TOC Purchase Agreement have occurred or will occur concurrently with the Closing. 7.9 Condition of Real Property. Berry shall have approved title to and the condition of the Real Property as follows: a. A current CLTA Preliminary Title Report prepared by First American Title Company covering the Real Property, accompanied by legible copies of all documents referred to as exceptions in the report to the extent reasonably available through Tannehill's best efforts [and a map plotting all easements] (the "PTR"), has been delivered to Berry. b. If Berry elects to obtain an ALTA Policy, a survey of the Real Property shall have been prepared, at Berry's expense, by a licensed surveyor or registered civil engineer, in sufficient detail to provide for the policy of title insurance to be purchased by Berry, certified to Berry in a form satisfactory to Berry, without boundary, encroachment or survey exceptions and which shows the location of all easements and improvements. It shall be Berry's sole responsibility to obtain such survey by the Title Approval Date defined below. Berry's failure to do so will be deemed Berry's waiver of this condition. If Berry does not elect to obtain an ALTA Policy, then Tannehill shall provide Berry with a CLTA Policy at Tannehill's expense. c. Title shall be free of Encumbrances not approved by Berry. On or before November 8, 1996 (the "Title Approval Date"), Berry shall advise Tannehill in writing of what exceptions to coverage, if any, are unacceptable to Berry (the "Title Disapproval Notice"). Notwithstanding any other provision of this Section 7.9, Berry hereby objects to all monetary Encumbrances, which monetary Encumbrances (if any) Tannehill shall cause to be eliminated at the Closing except for non-delinquent real property taxes and assessments, which shall be one of the exceptions to coverage. Tannehill shall have ten (10) business days after receipt of a Title Disapproval Notice to give Berry notice either: (i) that Tannehill will remove, on or before the Closing, any disapproved exceptions to coverage and provide Berry with evidence satisfactory to Berry of such removal; or (ii) that Tannehill elects not to cause such exceptions to coverage to be removed, in which case Berry shall have five (5)

25 business days thereafter to notify Tannehill in writing of Berry's election (a) to waive any objectionable exceptions and to proceed with the purchase of and to take the Real Property subject to such exceptions, but otherwise pursuant to the terms of this Agreement, or (b) to terminate this Agreement. If Berry shall fail to give Tannehill notice of such election within said five (5) business days, Berry shall be deemed to have elected to waive its objection to the coverage and to proceed with this purchase. In the event that during escrow any amended or supplemented PTR is issued disclosing new exceptions to coverage, Berry shall again have the right to give a Title Disapproval Notice as to such new exception, in which case all the foregoing rights of the parties following the giving of such a notice shall again apply as stated above. d. Berry shall not have given written notice of disapproval of matters related to the Real Property. Berry's failure to give written notice of disapproval on or before November 8, 1996 (the "Property Approval Date") of all aspects and matters related to the Real Property, including size, shape, configuration, access, easements (express, implied and by prescription), geologic/subsidence and soil conditions, hydrologic conditions, water supply quantity and quality, buildings, tanks, pipelines, oil and gas wells, oils and gas surface equipment, and the condition of all other fixed equipment shall be deemed approval of matters relating to the Real Property. To facilitate Berry's review, Tannehill shall deliver to Berry within fifteen (15) business days after the date of this Agreement, (i) any environmental reports prepared by or for Tannehill covering all or any portion of the Real Property, without representation or warranty as to their accuracy or validity; (ii) copies of any service contracts now in effect, all of which are cancelable at any time, or by the giving of not more than thirty (30) days' notice; and (iii) any well logs and reports of water usage made to the Regional Water Quality Control Board, the Division of Oil, Gas and Geothermal Resources and other agencies, as applicable. e. Berry shall be satisfied that there are no Hazardous Materials, as that term is defined by all or any applicable laws, on the Real Property or in the groundwater thereunder and Berry's acceptance and approval of an Environmental Audit and Assessment ("Phase I Report") as to the Real Property performed at Berry's direction and sole cost and expense. Berry's failure to give notice of disapproval of the Phase I Report obtained by Berry, if any, on or before the Property Approval Date shall be deemed as Berry's approval thereof and acceptance of the Real Property in its present condition. In the event such Phase I Report or any Phase II Report involving soil and/or groundwater tests, approved in advance by Tannehill, discloses that the Real Property or groundwater thereunder is contaminated with Hazardous Materials in quantities requiring remediation or removal under existing law, Berry shall have the right to terminate this Agreement. Except as provided in the succeeding sentence, Berry agrees that the Phase I Report and any other report, tests, and information and conclusions stated therein shall be kept confidential and that any reporting requirements to any governmental agency or any other third party arising therefrom shall be the sole responsibility of Tannehill. Notwithstanding the foregoing, in the event that any then applicable law, statute or ordinance requires Berry to report or disclose the Report or Report findings to a governmental agency, then and only then shall Berry disclose the Report findings. In no event shall Berry be entitled

26 to conduct any soil borings or groundwater tests without Tannehill's prior written approval, which may be conditioned or denied in Tannehill's sole discretion. f. Berry shall have received an affidavit, certification or notice required by Section 1445 of the Code and the Regulations pursuant thereto. In addition, Tannehill shall have provided Berry with the certification required to show that withholding is not required pursuant to California Revenue and Taxation Code Section 18662(e). In the event any of the Partners does not qualify for the exemption from withholding under Section 1445(e) of the Code or Section 18662(e) of the California Revenue and Taxation Code, Berry will comply with the withholding requirement of such sections. 7.10 Termination of Operating Agreement. That certain Operating Agreement and First Amendment to Operating Agreement, dated January 1, 1992, entered into by and between Tannehill Oil and the Partners shall be cancelled, in writing, by the parties thereto at the Closing. ARTICLE VIII CONDITIONS TO OBLIGATIONS OF TANNEHILL The obligations of Tannehill to consummate the transactions contemplated by this Agreement shall be subject to the satisfaction (or waiver by Tannehill) on or prior to the Closing of all of the following conditions: 8.1 Accuracy of Representations and Warranties. The representations and warranties of Berry set forth in this Agreement shall be true and correct in all material respects as of the date when made and at and as of the Closing. 8.2 Performance of Covenants and Agreements. Berry shall have duly performed and complied in all respects with the covenants, agreements and conditions required by this Agreement to be performed or complied with by it prior to or at the Closing. None of the events or conditions entitling Tannehill to terminate this Agreement under Article IX hereof shall have occurred and be continuing. 8.3 Resolutions. Tannehill shall have received certified copies of resolutions of the Board of Directors of Berry approving this Agreement and the transactions contemplated hereby. 8.4 Approval of Counsel. The form and substance of all legal matters contemplated hereby and all papers delivered hereunder shall be reasonably acceptable to Roger Coley, counsel to Tannehill. 8.5 Governmental Approvals. All Requisite Regulatory Approvals shall have been obtained, made or lapsed and shall be in full force and effect.

27 8.6 Officers' Certificate. Tannehill shall have received a certificate of Berry, substantially in the form of Exhibit 15 attached hereto and made a part hereof, satisfactory in form and substance to Tannehill, executed on behalf of Berry by the President and Secretary of Berry, as to compliance with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of this Agreement. 8.7 Opinion of Counsel. Tannehill shall have received the opinion of Nordman, Cormany, Hair & Compton, counsel to Berry, in form and content reasonably satisfactory to Tannehill, substantially in the form of Exhibit 16 attached hereto and made a part hereof. 8.8 Closing of TEC and TOC Purchase Agreements. The Closing shall not occur unless the Closings contemplated by the TEC Purchase Agreement and the TOC Purchase Agreement have occurred or will occur concurrently with the Closing. ARTICLE IX TERMINATION PRIOR TO CLOSING 9.1 Termination. This Agreement may be terminated at any time prior to the Closing: a. By the mutual written consent of Berry and Tannehill; b. Subject to the right of either party to extend the Closing as provided in Section 2.7 hereof, upon written notice by either party to the other party if Closing has not occurred forty-five (45) days after the execution of this Agreement; c. By Berry in writing if Tannehill Oil or the Partners shall be in Default; d. By Tannehill in writing if Berry shall be in Default; e. By Berry if, after the date of this Agreement, there shall have occurred a Material adverse change (or any development or condition involving a prospective Material adverse change) in the business, financial condition or results of operations of Tannehill Oil; or f. By Tannehill if, after the date of this Agreement, there shall have occurred a Material adverse change (or any development or condition involving a prospective Material adverse change) in the business, financial condition or results of operations of Berry. 9.2 Effect on Obligations. Termination of this Agreement pursuant to this Article shall terminate all obligations of the parties hereunder, except for the obligation under

28 Sections 3.13 and 4.5; provided, however, that termination pursuant to paragraphs 9.1c or d hereof shall not relieve any defaulting party from any liability to the other parties hereto. ARTICLE X INDEMNIFICATION 10.1 Indemnification by Berry. Berry agrees to indemnify, defend and hold Tannehill, and agents of Tannehill, harmless from and against any and all loss, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Tannehill and its agents may incur or become subject to arising out of or due to any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Berry contained in this Agreement. 10.2 Indemnification by Tannehill. Tannehill, jointly and severally, agrees to indemnify, defend and hold Berry, and the officers, directors, employees and agents of Berry (collectively, the officers, directors, employees and agents being referred to in each case as its "Related Parties") harmless from and against any and all loss, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys' fees) that Berry and its Related Parties may incur or become subject to arising out of or due to any inaccuracy of any representation or the breach of any warranty, covenant, undertaking or other agreement of Tannehill contained in this Agreement. Tannehill, jointly and severally also agrees to indemnify, defend and hold Berry and its Related Parties harmless from and against any and all loss, liability, damage, costs and expenses (including interest, penalties, settlements, fines, costs and expenses incurred in connection with investigating and defending any claims or causes of action, and reasonable attorneys fees) that Berry and its Related Parties may incur or become subject to arising out of the Baker Litigation or attributable to any environmental conditions caused directly or indirectly by the acts of or failure to act by Baker Chemical and/or its officers, employees or agents. 10.3 Survival. The several warranties, representations, covenants and agreements of the parties contained in this Agreement and in any other instrument delivered pursuant hereto shall survive the Closing and shall remain in full force and effect thereafter. 10.4 Notice and Opportunity to Defend. a. If a party seeking indemnification (the "Indemnitee") becomes aware of any matters that it believes may give rise to an indemnifiable claim, or asserts any claim that it believes may be indemnifiable pursuant to this Agreement, the Indemnitee shall give the party obligated to provide indemnification (the "Indemnifying Party") prompt written notice of such matter or claim, stating with particularity the nature of such matter or the aforementioned claim and the amount thereof. Failure to provide such notice shall not affect the

29 right of the Indemnitee to indemnification except to the extent such failure shall have resulted in liability to the Indemnifying Party that could have been actually avoided had such notice been provided within such required time period. b. If the matter that the Indemnitee believes gives rise to an indemnifiable claim does not involve a third party claim against an ndemnitee, the Indemnifying Party shall have thirty (30) days from the date on which it received notice of such claim pursuant to this Section to respond to such notice. If such Indemnifying Party accepts responsibility or does not respond within such thirty (30)-day period, the Indemnifying Party shall promptly pay to the Indemnitee the full amount of such claim. If the Indemnifying Party rejects any liability with respect to such claim, it shall give written notice of such objection to the Indemnitee within such thirty (30)-day period and the parties shall seek to resolve such claim by agreement. If the parties are unable to resolve such claim by agreement within sixty (60) days following the expiration of such thirty (30)-day period mentioned above, the parties shall be entitled to pursue, without prejudice to any of their rights hereunder, such remedies as may be available to the parties under applicable law. c. In the event any action, suit, proceeding or investigation is brought against the Indemnitee by a third party which the Indemnitee believes may give rise to an indemnifiable claim, the Indemnitee shall give the Indemnifying Party prompt written notice of the commencement of such action, suit, proceeding or investigation as provided in paragraph a. of this Section. Such Indemnifying Party shall have a period of thirty (30) days after receipt of such notice within which to respond to such notice. If such Indemnifying Party does not respond within such thirty (30)-day period or rejects responsibility for such matter in whole or in part, the Indemnitee shall be free to pursue, without prejudice to any of its rights hereunder, such remedies as may be available to such party under applicable law. If such Indemnifying Party accepts responsibility, such Indemnifying Party shall, as between the Indemnitee and the Indemnifying Party, be obligated to compromise or defend such matter, at its own expense. The Indemnitee shall employ counsel of its choice and the Indemnifying Party shall reimburse Indemnitee for attorneys' fees and costs. The Indemnifying Party shall cooperate fully with the Indemnitee and its counsel in the defense against any such asserted liability. Any compromise of such asserted liability by the Indemnitee shall require the prior written consent of the Indemnifying Party, which shall not be unreasonably withheld. If, however, the Indemnitee refuses its consent to a bona fide offer of settlement that involves solely the payment of cash that the Indemnifying Party wishes to accept, the Indemnitee may continue to pursue such matter, free of any participation by the Indemnifying Party, at the sole expense of the Indemnitee. In such event, the obligation of the Indemnifying Party to the Indemnitee shall be equal to the lesser of (i) the amount of the offer of settlement that the Indemnitee refused to accept plus the costs and expenses of the Indemnitee prior to the date the Indemnifying Party notified the Indemnitee of the offer of settlement; and (ii) the actual out-of-pocket amount the Indemnitee is obligated to pay as a result of such party's continuing to pursue such matter. An Indemnifying Party shall be entitled to recover from the Indemnitee any additional expenses incurred by such Indemnifying Party as a result of the decision of the Indemnitee to pursue such matter.

30 10.5 General. The indemnification provided in this Agreement shall apply regardless of whether the matter subject to indemnification involved an action taken or omitted that was negligent, grossly negligent or reckless by the Person to be so indemnified. It is understood that such indemnification is intended to be a means of compensating the parties for any damage or liability directly or indirectly realized by them for matters subject to such indemnification. To the extent the indemnification provided for herein may not be provided to any Person under law, such indemnification shall be required to be provided to any other Person for whom such indemnification may be permissible as herein provided. ARTICLE XI MISCELLANEOUS 11.1 Entire Agreement. This Agreement and related documents executed concurrently herewith constitute the sole understanding of the parties hereto with respect to the matters provided for herein and supersedes the AIP and any previous agreements and understandings between the parties with respect to the subject matter hereof. No amendment, modification or alteration of the terms or provisions of this Agreement shall be binding unless the same shall be in writing and duly executed by Berry and Tannehill. 11.2 Successors and Assigns. This Agreement will inure to the benefit of and be binding upon Berry and Tannehill and their respective successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned by any of the parties hereto without the prior written consent of the other parties hereto. 11.3 Expenses. Except as provided in Sections 10.1 and 10.2 hereof, each party hereto shall be responsible for the payment of the fees and expenses of their respective counsel, accountants and other experts. 11.4 Taking of Necessary Action. Subject to the terms and conditions of this Agreement, each of the parties hereto agrees, subject to applicable laws, to use all reasonable best efforts promptly to take or cause to be taken all action and to promptly do or cause to be done all things necessary, proper or advisable under applicable laws and regulations to consummate and make effective the transactions contemplated by this Agreement. Without limiting the foregoing and subject to the terms and conditions of this Agreement, the parties shall use their reasonable best efforts to obtain and make all consents, approvals, assurances and filings of or with third parties and Governmental Entities necessary or advisable for the consummation of the transactions contemplated by this Agreement. Each party shall cooperate with the other in good faith to help the other satisfy its obligations hereunder. 11.5 Invalidity. Except for satisfaction of the conditions of Article VII or VIII, and the provisions of Article X, if any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the

31 economic and legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner to the end that transactions contemplated hereby are fulfilled to the extent possible. 11.6 Attorneys' Fees. In the event of any claim, dispute or controversy arising out of or relating to this Agreement, including an action for declaratory relief, the prevailing party in such action or proceeding shall be entitled to recover its taxable costs or arbitration fees, and reasonable out-of-pocket expenses, including but not limited to, telephone calls, photocopies, expert witnesses, travel, computer expenses related to litigation, and attorneys' fees to be fixed by the court or the arbitrator. Such recovery shall include court costs, out-of-pocket expenses and attorneys' fees on appeal, if any. The court shall determine who is the "prevailing party," whether or not the dispute or controversy proceeds to final judgment. 11.7 Counterparts. This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original and all of which shall constitute the same instrument. 11.8 Headings. The headings of the articles, sections and paragraphs of this Agreement and of the exhibits hereto are included for convenience only and shall not be deemed to constitute part of this Agreement or to affect the construction hereof or thereof. 11.9 Construction and References. Words used in this Agreement, regardless of the number or gender specifically used, shall be deemed and construed to include any other number, singular or plural, and any other gender, masculine, feminine or neuter, as the context shall require. Unless otherwise specified, all references in this Agreement to articles, sections, paragraphs or clauses are deemed references to the corresponding articles, sections, paragraphs or clauses in this Agreement, and all references in this Agreement to exhibits are references to the corresponding exhibits attached to this Agreement. 11.10 Modification and Waiver. Any of the terms or conditions of this Agreement may be waived in writing at any time by the party which is entitled to the benefits thereof. No waiver of any of the provisions of this Agreement shall be deemed to or shall constitute a waiver of any other provisions hereof (whether or not similar).

32 11.11 Notices. Any notice, request, instruction or other document to be given hereunder by any party hereto to any other party shall be in writing and delivered personally, via telecopy (with receipt confirmed) or by registered or certified mail, postage prepaid: (a) if to Tannehill, to: Tannehill Oil Company c/o Boyce Resource Development Company Attn: Mr. Albert G. Boyce, Jr. Managing General Partner 120 Manteca Avenue P.O. Box 871 Manteca, California 95336 Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014 with copies to: Roger Coley, Esq. 330 H Street, No. 7 Bakersfield, California 93304 Facsimile No. (805) 327-9120 Confirmation No. (805) 328-5575 (b) if to Berry, to: Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Facsimile No. (805) 769-8960 Confirmation No. (805) 769-8811

33 with copies to: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, Sixth Floor Post Office Box 9100 Oxnard, California 93031-9100 Facsimile No. (805) 988-8387 Confirmation No. (805) 485-1000 or at such other address for a party as shall be specified by like notice. Any notice that is delivered personally in the manner provided herein shall be deemed to have been duly given to the party to whom it is directed upon actual receipt by such party (or its agents for notices hereunder). Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Any notice that is sent by telecopy shall be deemed to have been duly given to the party to which it is addressed upon telephonic confirmation of the same as provided herein. A copy of any notices delivered by telecopy shall promptly be mailed in the manner herein provided to the party to which such notice was given. 11.12 Public Announcements. Without the prior express consent of Berry, neither Tannehill Oil nor any Partner shall make any public statements, including, without limitation, any press releases, with respect to this Agreement and the transactions contemplated hereby. 11.13 Governing Law; Interpretation. This Agreement shall be construed in accordance with and governed by the laws of the State of California (regardless of the laws that might otherwise govern under applicable California principles of conflict of laws) as to all matters, including, but not limited to, matters of validity, construction, effect, performance and remedies. 11.14 Jurisdiction. Any legal action or proceeding with respect to this Agreement may be brought in the federal or state courts for the County of Kern, in the State of California, and by execution and delivery of this Agreement, Berry and Tannehill hereby accept the jurisdiction of the aforesaid courts.

34 IN WITNESS WHEREOF, Berry and Tannehill have caused this Agreement to be executed as of the date first above written. BERRY PETROLEUM COMPANY, TANNEHILL OIL COMPANY, a a Delaware corporation California general partnership By: _____________________________ By: BOYCE RESOURCE DEVELOPMENT Jerry V. Hoffman, President COMPANY, a California corporation and Chief Executive Officer Managing General Partner By: _____________________________ By: ___________________________ Kenneth A. Olson, Secretary Albert G. Boyce, Jr., President and Secretary BOYCE RESOURCE DEVELOPMENT By: HHB, INC., a California corporation COMPANY, a California corporation Managing General Partner By: ____________________________ By: ___________________________ Albert G. Boyce, Jr., President James L. Hinkle, President and Secretary and Secretary By: PASO ENERGY, INC., a California corporation Managing General Partner By: _____________________________ ___________________________ Albert G. Boyce, Jr., as Trustee of John W. Tannehill,President Trust "B" Under Will of Albert G. and Secretary Boyce, Sr., Deceased ________________________________ ___________________________________ William J. Boyce Albert G. Boyce V ________________________________ ___________________________________ Mary K. Boyce John T. Hinkle

35 ________________________________ ___________________________________ Bettianne H. Bowen James L. Hinkle VERNIER RESOURCES CORPORATION, GENERAL WESTERN, INC. a Texas corporation a New Mexico corporation By: ___________________________ By: ______________________________ Bettianne H. Bowen, President James L. Hinkle, President and Secretary By: ___________________________ Cheryl Bailey Harrison, Secretary ________________________________ __________________________________ Lisle Q. Tannehill Thomas H. Tannehill ________________________________ ________________________________ Gail Kay Tannehill, as Trustee of the Delmar R. Archibald, as Trustee of the Gail Kay Tannehill Family Trust, Delmar R. Archibald Family Trust, dated April 9, 1996 dated June 22, 1982 ________________________________ _________________________________ John W. Tannehill Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated June 22, 1982 Spousal Consents The undersigned, spouses of the Partners named in this Agreement, hereby consent to the terms and conditions of this Agreement and agree that their community property, if any, included in the Assets, as defined herein, is subject to this Agreement. _________________________________ _________________________________ _________________________________ _________________________________ _________________________________ _________________________________

1 EXHIBIT 1 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. THIS WARRANT AND THE SECURITIES ISSUABLE UPON THE EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), IN RELIANCE UPON EXEMPTIONS CONTAINED IN SECTION 4(2) OF THE SECURITIES ACT AND REGULATION D PROMULGATED PURSUANT THERETO, NOR HAVE THE SECURITIES BEEN QUALIFIED IN ANY STATE IN RELIANCE UPON EXEMPTIONS FROM QUALIFICATION UNDER APPLICABLE STATE SECURITIES LAWS. ACCORDINGLY, THE SECURITIES RECEIVED HEREBY MAY NOT BE RESOLD OR TRANSFERRED BY A SHAREHOLDER UNLESS THEY ARE SUBSEQUENTLY REGISTERED UNDER FEDERAL AND APPLICABLE STATE SECURITIES LAWS OR UNLESS EXEMPTIONS FROM REGISTRATION AND QUALIFICATION ARE AVAILABLE. WARRANT CERTIFICATE For Purchase of Shares of Class A Common Stock of BERRY PETROLEUM COMPANY November 14, 1996 THIS CERTIFIES THAT, for value received, TANNEHILL OIL COMPANY, a California general partnership ("Warrant Holder"), is entitled, subject to the terms and conditions hereinafter set forth, to purchase from BERRY PETROLEUM COMPANY, a Delaware corporation (the "Company"), one hundred thousand (100,000) fully paid and nonassessable shares (which number is hereinafter sometimes referred to as the "Initial Exercise Number") of Class A Common Stock, par value $.01 per share, of the Company (the "Common Stock"), upon presentation and surrender of this Warrant Certificate, together with a completed and executed Election to Purchase in the form attached hereto, at any time during the Exercise Period (as hereinafter defined), at the principal office of the Company and upon payment therefore to the Company of the purchase price by wire transfer, cash or certified check, in lawful money of the United States of America. The Initial Exercise Number shall be subject to adjustment as hereinafter set forth. This Warrant ("Warrant") is issued to the Warrant Holder in partial consideration for the transactions set forth in the Purchase and Sale Agreement (the "Agreement"), dated as of

2 November 14, 1996, by and between the Company, the Warrant Holder and the individual partners of the Warrant Holder. In certain contingencies provided for below, the number of shares of Common Stock subject to purchase hereunder or the purchase price thereof are subject to adjustment, but the shares of Common Stock of the Company subject to purchase hereunder are the shares of such stock of the Company as they may exist on the date of the exercise of this Warrant, whether or not the rights or interests represented by such shares are equivalent to the rights or interests represented by the shares of Common Stock of the Company authorized as of the date hereof. This Warrant is subject to the following terms and conditions: 1. Exercise of Warrant. The purchase rights represented by this Warrant are exercisable at the option of the holder hereof, in whole at any time, or in part from time to time (but not as to a fractional share of Common Stock) during the Exercise Period (as defined below). In the case of the purchase of less than all the shares purchasable under this Warrant, the Company shall cancel this Warrant upon the surrender hereof and shall execute and deliver a new Warrant of like tenor for the balance of the shares purchasable hereunder. The term "Exercise Period" shall mean and refer to the period commencing on the date hereof and ending on November 8, 2003. 2. Price. The purchase price for each share of Common Stock purchasable pursuant to the exercise of this Warrant (the "Exercise Price") shall be equal to the Market Value (as defined below), plus two dollars ($2.00) per share in funds of the United States of America (or shall be such other amount per share if and as adjusted as provided in Section 3 below). The term "Market Value" shall mean the average closing price per share of Class A Common Stock traded on the New York Stock Exchange for the twenty (20) trading days prior to the trading day before the closing of the transactions contemplated by the Agreement (the "Closing"). For example, assuming the respective closing prices of the Class A Common Stock for the twenty (20) trading days prior to Closing are as follows: 10/15 $11-1/2 10/3 $11 10/14 $11-1/2 10/2 $11-1/2 10/11 $11-3/4 10/1 $11-3/4 10/10 $11-3/4 9/30 $12 10/9 $11-1/2 9/27 $12 10/8 $11 9/26 $11-3/4 10/7 $11-1/4 9/25 $11-1/2 10/6 $11 9/24 $11-1/2 10/5 $11-3/4 9/23 $11-1/4 10/4 $11-1/2 9/22 $11-1/4 the aggregate total of the closing prices is 230 and the average closing price per share is equal to 11.5 (i.e., 230 / 20).

3 3. Adjustments to Exercise Price and Number of Shares. 3.1 The Exercise Price and number of shares of Common Stock purchasable pursuant to the exercise of this Warrant shall be subject to adjustment from time to time as follows: a. Adjustment for Combinations or Consolidations of Common Stock. In the event the Company, at any time after the date hereof (hereinafter referred to as the "Original Issue Date"), effects a subdivision or combination of its outstanding Common Stock into a greater or lesser number of shares, then and in each such event, the Exercise Price and the number of shares of Common Stock purchasable pursuant to the exercise of this Warrant shall be decreased or increased, respectively, proportionately. b. Adjustment for Certain Dividends and Distributions. In the event the Company at any time after the Original Issue Date shall make or issue, or fix a record date for the determination of holders of Common Stock entitled to receive, a dividend or other distribution payable in additional shares of Common Stock, then and in each such event the maximum number of shares (as set forth in the instrument relating thereto without regard to any provisions contained therein for a subsequent adjustment to such number) of Common Stock issuable in payment of such dividend or distribution shall be deemed to be issued and outstanding as of the time of such issuance or, in the event such a record date shall have been fixed, as of the close of business on such record date. In each such event, the Exercise Price shall be decreased as of the time of such issuance or, in the event such a record date shall have been fixed, as of the close of business on such record date, by multiplying the Exercise Price by a fraction, (1) the numerator of which shall be the total number of shares of Common Stock issued and outstanding or deemed to be issued and outstanding immediately prior to the time of such issuance or the close of business on such record date; and (2) the denominator of which shall be the total number of shares of Common Stock issued and outstanding or deemed to be issued and outstanding immediately prior to the time of such issuance or the close of business on such record date plus the number of shares of Common Stock issuable in payment of such dividend or distribution; provided, however, that if such record date shall have been fixed and such dividend not fully paid or if such distribution is not fully made on the date fixed therefor, the Exercise Price shall be recomputed accordingly as of the close of business on such record date and thereafter the Exercise Price shall be adjusted pursuant to paragraph 3.1(b) as of the time of actual payment of such dividends or distribution. c. Adjustments for Reclassifications and for Other Dividends and Distributions. In the event the Company at any time after the Original Issue Date shall effect a reclassification of its Common Stock (other than one resulting in the issuance of additional shares of Common Stock) or shall make or issue, or fix a record date for the determination of

4 holders of Common Stock entitled to receive, a dividend or other distribution to its stockholders payable in securities of the Company other than shares of Common Stock, then and in each such event provision shall be made so that the holder of this Warrant shall receive, upon exercise thereof, the securities of the Company which such holder would have received had this Warrant been exercised and the Common Stock issuable on exercise been received on the date of such event. 3.2 Upon any adjustment of the Exercise Price and of the number of shares of Common Stock and, if applicable, other securities and property issuable upon exercise of this Warrant, pursuant to this Section 3, the Company, within twenty (20) days thereafter, shall cause to be prepared a certificate of the Chief Financial Officer of the Company setting forth the Exercise Price after such adjustment and setting forth in reasonable detail the method of calculation used. 3.3 In case: a. The Company shall authorize the issuance to all holders of Common Stock of rights or warrants to subscribe for or purchase capital stock of the Company or of any other subscription rights or warrants; or b. the Company shall authorize the distribution to all holders of Common Stock of evidences of its indebtedness or assets (other than cash dividends or cash distributions payable out of consolidated earnings or earned surplus or dividends payable in Common Stock); or c. of any consolidation or merger to which the Company is a party and for which approval of any stockholders of the Company is required, or of the conveyance or transfer of the properties and assets of the Company substantially as an entirety, or of any capital reorganization or any reclassification of the Common Stock (other than a change in par value, or from par value to no par value, or from no par value to par value, or as a result of a subdivision or combination); or d. of the voluntary or involuntary dissolution, liquidation or winding up of the Company; or e. the Company proposes to take any other action which would require an adjustment of the Exercise Price or number or kind of shares issuable upon exercise of this Warrant, pursuant to this Section 3; then the Company shall cause to be given to the registered holder of the outstanding Warrant at its address in the records of the Company at least thirty (30) calendar days (or fifteen (15) calendar days in any case specified in paragraph a or b above) prior to the applicable record date hereinafter specified, by first-class mail, postage prepaid, written notice stating (i) the date as of which the holders of record of shares of Common Stock to be entitled to receive any rights, warrants or distribution are to be determined or (ii) the date on which any consolidation, merger,

5 conveyance, transfer, reorganization, reclassification, dissolution, liquidation or winding up is expected to become effective, and the date as of which it is expected that holders of record of shares of Common Stock shall be entitled to exchange the shares for securities or other property, if any, deliverable upon the consolidation, merger, conveyance, transfer, reorganization, reclassification, dissolution, liquidation or winding up. 3.4 Irrespective of any adjustments in the Exercise Price or the number or kind of shares purchasable upon exercise of the Warrant, the Warrant theretofore or thereafter issued may continue to express the same price and number and kind of shares as are stated in the similar Warrant initially issued. 4. Elimination of Fractional Interests. The Company shall not be required to issue certificates representing fractions of shares of Common Stock, but will make a payment in cash based on the Exercise Price in effect at that time. 5. Covenants of the Company. The Company covenants and agrees that all shares which may be issued upon the exercise of this Warrant shall, upon issuance, be duly authorized, validly issued, fully paid and non-assessable and free from all preemptive rights of any stockholder and all taxes, liens and charges with respect to the issue thereof (other than taxes in respect of any transfer occurring contemporaneously with such issue). The Company further covenants and agrees that during the Exercise Period within which the rights represented by this Warrant may be exercised, the Company will at all times have authorized, and reserved, a sufficient number of shares of its Common Stock to provide for the exercise of the rights represented by this Warrant. 6. Restrictions on Transferability of Securities; Compliance with Securities Act. 6.1 Restrictions on Transferability. This Warrant and shares of Common Stock issuable upon exercise of this Warrant are restricted shares and shall not be transferable, except upon the conditions specified in this Section 6, which conditions are intended to insure compliance with the provisions of the Securities Act of 1933, as amended (the "Securities Act"). The holder of this Warrant shall cause any proposed transferee of this Warrant, or the shares of Common Stock issuable upon exercise of this Warrant held by that holder, to agree to take and hold those securities subject to the provisions and upon the conditions specified in this Section 6. 6.2 Certain Definitions. As used in this Section 6, the term "Restricted Securities" means (i) the Warrants, (ii) the shares of Common Stock issuable or issued upon exercise of the Warrants, and (iii) any shares of Common Stock of the Company issued as a dividend or other distribution with respect to, or in exchange or in replacement of the Warrants or such shares of Common Stock. 6.3 Restrictive Legend. Each certificate representing (i) the Warrants, (ii) shares of the Company's Common Stock issued upon exercise of the Warrants, or (iii) any other securities issued in respect of the Warrants or the Common Stock issued upon exercise of the

6 Warrants upon any stock split, stock dividend, recapitalization, merger, consolidation or similar event, shall be stamped or otherwise imprinted with a legend in the following form (in addition to any legend required under applicable state securities laws): THESE SECURITIES HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), NOR HAVE THE SECURITIES BEEN QUALIFIED UNDER ANY STATE SECURITIES LAWS. ACCORDINGLY, THE SECURITIES MAY NOT BE SOLD OR OFFERED FOR SALE UNLESS SUCH SECURITIES ARE SUBSEQUENTLY REGISTERED UNDER FEDERAL AND APPLICABLE STATE SECURITIES LAWS OR UNLESS EXEMPTIONS FROM REGISTRATION AND QUALIFICATION ARE AVAILABLE. Upon request of a holder of such a certificate, the Company shall remove the foregoing legend from the certificate or issue to such holder a new certificate therefor free of any transfer legend, if, with such request, the Company shall have received the opinion referred to in Section 6.4 to the effect that any transfer by such holder of the securities evidenced by such certificate will not violate the Securities Act and applicable state securities laws. 6.4 Notice of Proposed Transfers. The holder of each certificate representing Restricted Securities by acceptance thereof agrees to comply in all respects with the provisions of this Section 6.4. Prior to any proposed transfer of any Restricted Securities, the holder thereof shall give written notice to the Company of such holder's intention to effect such transfer. Each such notice shall describe the manner and circumstances of the proposed transfer in sufficient detail, and shall be accompanied (except in transactions in compliance with Rule 144) by a written opinion of legal counsel who shall be reasonably satisfactory to the Company, addressed to the Company and reasonably satisfactory in form and substance to the Company's counsel, to the effect that the proposed transfer of the Restricted Securities may be effected without registration under the Securities Act, whereupon the holder of such Restricted Securities shall be entitled to transfer such Restricted Securities in accordance with the terms of the notice delivered by the holder to the Company. Each certificate evidencing the Restricted Securities transferred as above provided shall bear the appropriate restrictive legend set forth in Section 6.3 above, except that such certificate shall not bear such restrictive legend if the opinion of counsel letter referred to above is to the further effect that such legend is not required in order to establish compliance with any provision of the Securities Act. 6.5 Reports Under Securities Exchange Act of 1934. With a view to making available to the holders the benefits of Rule 144 promulgated under the Securities Act and any other rule or regulation of the Commission that may at any time permit a Holder to sell securities of the Company to the public without registration, the Company agrees to use its best efforts to: a. make and keep public information available (as provided in Rule 144) at all times;

7 b. file with the Commission in a timely manner all reports and other documents required of the Company under the Securities Act and the Securities Exchange Act of 1934 (the "Exchange Act"); and c. furnish to any Holder so long as such Holder owns any of the Restricted Securities upon request a written statement by the Company that it has complied with the reporting requirements of Rule 144 and of the Securities Act and the Exchange Act, a copy of the most recent annual or quarterly report of the Company, and such other reports and documents so filed by the Company as may be reasonably requested in availing any holder of any rule or regulation of the Commission permitting the selling of any such Restricted Securities without registration. 7. Exchange and Replacement of Warrant. Upon receipt by the Company of evidence reasonably satisfactory to it of the loss, theft, destruction or mutilation of this Warrant, and, in case of loss, theft or destruction, of an indemnity agreement or bond reasonably satisfactory to it, and reimbursement to the Company of all reasonable expenses incidental thereto, and upon surrender and cancellation of this Warrant, if mutilated, the Company will make and deliver a new Warrant of like tenor, in lieu of this Warrant. 8. Rights Prior to Exercise of Warrant. Prior to the exercise of this Warrant, the holder of this Warrant shall not be entitled to any rights of a stockholder of the Company, including without limitation the right to vote, to receive dividends or other distributions or to exercise any preemptive rights, as to those shares of Common Stock subject to this Warrant, and shall not be entitled to receive any notice of any proceedings of the Company except as provided herein. 9. Notices. Any and all notices, demands, requests or other communications required or permitted by this Warrant or by law to be served on, given to or delivered to any party hereto by any other party to this Warrant shall be in writing and shall be deemed duly served, given or delivered upon delivery by facsimile transmission (confirmed by any of the methods that follow), by courier service (with proof of service), by hand delivery, or by certified or registered mail (return receipt requested and first-class postage prepaid) and addressed as follows: If to the Warrant Holder: with copies to: Tannehill Oil Company Roger Coley, Esq. c/o Boyce Resource Development Co. 330 H Street, No. 7 Attn: Mr. Albert G. Boyce, Jr. Bakersfield, California 93304 Managing General Partner 120 Manteca Avenue P.O. Box 871 Facsimile No. (805) 327-9120 Manteca, California 95336 Confirmation No. (805)328-5575 Facsimile No. (209) 239-7886 Confirmation No. (209) 239-4014

8 If to the Company: with copies to: Berry Petroleum Company Nordman, Cormany, Hair & Compton 28700 Hovey Hills Road Attn: Laura K. McAvoy, Esq. Post Office Bin X 1000 Town Center Drive, Sixth Floor Taft, California 93268 Post Office Box 9100 Attn: President Oxnard, California 93031-9100 Facsimile No. (805) 769-8960 Facsimile No. (805) 988-8387 Confirmation No. (805) 769-8811 Confirmation No. (805)485-1000 Any notice which is addressed and mailed in the manner herein provided shall be conclusively presumed to have been duly given to the party to which it is addressed at the close of business, local time of the recipient, on the third day after the day it is so placed in the mail. Either party may change their address for the purposes of this Warrant, by giving notice of the change, in the manner required by this Section, to the other party. 10. Successors. This Warrant shall be binding upon and inure to the benefit of the parties hereto and their respective heirs, executors, personal representatives, successors and assigns and shall be binding upon any person, firm, corporation or other entity to whom this Warrant and any shares of Common Stock issuable upon exercise hereof are transferred (even if in violation of the provisions of this Warrant) and the heirs, executors, personal representatives, successors and assigns of such person, firm, corporation or other entity. 11. Governing Law. This Warrant shall be construed in accordance with and be governed by the laws of the State of Delaware, without regard to its conflict of laws principles. IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed and delivered by its duly authorized officers. BERRY PETROLEUM COMPANY, a Delaware corporation By: _______________________________ Jerry V. Hoffman, President and Chief Executive Officer By: _______________________________ Kenneth A. Olson, Secretary

9 ELECTION TO PURCHASE To: BERRY PETROLEUM COMPANY The undersigned owner of the accompanying Warrant hereby irrevocably exercises the option to purchase ___________ shares of Class A Common Stock in accordance with the terms of such Warrant, directs that the shares issuable and deliverable upon such purchase (together with any check for a fractional interest) be issued in the name of and delivered to the undersigned, and makes payment in full therefor at the Exercise Price provided in such Warrant. COMPLETE FOR REGISTRATION OF SHARES OF COMMON STOCK ON THE STOCK TRANSFER RECORDS MAINTAINED BY BERRY PETROLEUM COMPANY: _______________________________________________________________________ Name of Warrant Holder _______________________________________________________________________ Address _______________________________________________________________________ _______________________________________________________________________ Social Security or Other Identifying Number Signature: __________________________________ Date: _______________________________________

1 EXHIBIT 2 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: BERRY PETROLEUM COMPANY Attn: Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93268 Order No. KER 1125444 A.P.N. 220-181-17-00-4 Escrow No. 1125444N 220-181-18-00-7 220-191-03-00-6 220-181-24-00-4 220-181-09-00-1 GRANT DEED FOR A VALUABLE CONSIDERATION, receipt of which is hereby acknowledged, JAMES L. HINKLE, as to an undivided 1.082875125% interest; GENERAL WESTERN, INC., a New Mexico corporation, as to an undivided 4.331500500% interest; VERNIER RESOURCES CORPORATION, a Texas corporation, as to an undivided 5.414375625% interest; JOHN T. HINKLE, as to an undivided 9.376932675% interest; ALBERT G. BOYCE, JR., as trustee of Trust "B" under the will of Albert G. Boyce, Sr., deceased, as to an undivided 15.776797915% interest; BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation, as to an undivided 13.120240000% interest; WILLIAM J. BOYCE, as to an undivided 13.120240000% interest; DELMAR R. ARCHIBALD AND JOY A. ARCHIBALD, trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982, as to an undivided 2.885940000% interest; GAIL KAY TANNEHILL, as trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996, as to an undivided 3.60958375% interest; JOHN W. TANNEHILL, as to an undivided 3.60958375% interest; THOMAS H. TANNEHILL, as to an undivided 7.219167500% interest; LISLE Q. TANNEHILL, as to an undivided 7.219167500% interest; MARY K. BOYCE, as to an undivided 4.63551930500% interest; ALBERT G. BOYCE V, as to an undivided 4.635519305% interest; and BETTIANNE H. BOWEN, as to an undivided 3.96255705% interest, each hereby GRANTS to BERRY

2 PETROLEUM COMPANY, a Delaware corporation, the following described real property in the County of Kern, State of California: Parcel 1: That certain portion of the East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., described as Parcel 1 of Parcel Map 8297 in the unincorporated area of the County of Kern, State of California, as per Map recorded January 20, 1989 in Book 37, pages 134 and 135 of Parcel Maps, in the Office of the County Recorder of said County. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11, 1902. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel. Parcel 2: The East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11, 1902. EXCEPTING therefrom a portion of said land now known as Parcel 1 of Parcel Map no. 8297 recorded January 20, 1989 in Book 37, page 134 and 135 of Parcel Maps. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel.

3 Parcel 3: The Northwest quarter of the Northwest quarter of Section 34, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to May 13, 1901. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel. Dated: October 1, 1996 GENERAL WESTERN, INC., ___________________________________ a New Mexico corporation James L. Hinkle By: _____________________________ ___________________________________ James L. Hinkle, President John T. Hinkle and Secretary ____________________________________ BOYCE RESOURCE DEVELOPMENT Albert G. Boyce, Jr., as Trustee of COMPANY, a California corporation Trust B under Will of Albert G. Boyce, Sr., Deceased By: ______________________________ Albert G. Boyce, Jr., President and Secretary ___________________________________ William J. Boyce VERNIER RESOURCES CORPORATION, a Texas corporation ___________________________________ By: __________________________ Delmar R. Archibald, as Trustee of Bettianne H. Bowen, President the Delmar R. Archibald Family Trust, dated June 22, 1982 By: ______________________________ Cheryl Bailey Harrison, Secretary

4 ___________________________________ ________________________________ Gail Kay Tannehill, as Trustee of the Joy A. Archibald, as Trustee of the Gail Kay Tannehill Family Trust, Delmar R. Archibald Family Trust, dated April 9, 1996 dated June 22, 1982 __________________________________ ________________________________ Thomas H. Tannehill John W. Tannehill __________________________________ ________________________________ Lisle Q. Tannehill Mary K. Boyce ______________________________________ ________________________________ Bettianne H. Bowen Albert G. Boyce V

5 STATE OF CALIFORNIA ) ) COUNTY OF ________) On {DATE ___________________}, before me, {NOTARY NAME }, Notary Public, personally appeared { }, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person{s} whose name{s} {is/are} subscribed to the within instrument and acknowledged to me that {he/she/they} executed the same in {his/her/their} authorized capacit{y/ies}, and that by {his/her/their} signature{s} on the instrument the person{s}, or the entity upon behalf of which the person{s} acted, executed the instrument. WITNESS my hand and official seal. __________________________________ STATE OF CALIFORNIA ) ) COUNTY OF ________) On {DATE ___________________}, before me, {NOTARY NAME }, Notary Public, personally appeared { }, personally known to me (or proved to me on the basis of satisfactory evidence) to be the person{s} whose name{s} {is/are} subscribed to the within instrument and acknowledged to me that {he/she/they} executed the same in {his/her/their} authorized capacit{y/ies}, and that by {his/her/their} signature{s} on the instrument the person{s}, or the entity upon behalf of which the person{s} acted, executed the instrument. WITNESS my hand and official seal. __________________________________ [Acknowledgements to be continued]

6 Tannehill Oil Company STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: James L. Hinkle; General Western, Inc., a New Mexico corporation; Vernier Resources Corporation, a Texas corporation; John T. Hinkle; Albert G. Boyce, Jr., as Trustee of Trust "B" under the Will of Albert G. Boyce, Sr., Deceased; Boyce Resource Development Company, a California corporation; William J. Boyce; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; John W. Tannehill; Thomas H. Tannehill; Lisle Q. Tannehill; Mary K. Boyce; Albert G. Boyce V; and Bettianne H. Bowen [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T12N, R24W, Section 33 APNs 220-181-17-00-4; 220-181-18-00-7; 220-191-03-00-6; 220-181-24-00-4; 220-181-09-00-1 Amounts to: $________________ Amounts to: $___________________ (X) Unincorporated Area ( ) City of ___________________ (X) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining liens and encumbrances remaining Documentary Transfer Tax $____________ Computed on full value of property conveyed Tannehill Oil Company By: ____________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: ______________________ By:_________________________________ Title:______________________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

1 EXHIBIT 3 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. BILL OF SALE FOR VALUABLE CONSIDERATION, TANNEHILL OIL COMPANY, a California general partnership ("Tannehill Oil"), and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, all acting as partners of Tannehill Oil and individually, jointly and severally ("Partners"), with Tannehill Oil and the Partners collectively referred to herein as "Seller," hereby grants, bargains, transfers and sells to BERRY PETROLEUM COMPANY, a Delaware corporation ("Buyer"), the personal property listed on Schedule A, attached hereto and incorporated herein by this reference as though set forth in full (the "Personal Property"). Seller represents and warrants to Buyer that it is the lawful owner of and holds good and marketable title to the Personal Property, free and clear of restrictions on or conditions to transfer or assignment, and free and clear of all liens, pledges, charges or encumbrances of any nature whatsoever. Seller and Seller's successors and assigns shall warrant and defend Seller's good and marketable title to the Personal Property and Seller's right to sell the same against the lawful claims and demands of all persons whomsoever. Buyer acknowledges and agrees that it will purchase the Personal Property AS IS and WHERE IS. Seller makes no representations or warranties regarding the suitability of the Personal Property for any particular use. DATED this 1st day of October, 1996. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President and Chief Executive Officer By: _____________________________________ Kenneth A. Olson, Secretary "Buyer"

2 TANNEHILL OIL COMPANY, a California GENERAL WESTERN, INC., general partnership a New Mexico corporation By: Boyce Resource Development Company By: _______________________________ a California corporation James L. Hinkle, President Managing General Partner and Secretary By: __________________________ VERNIER RESOURCES CORPORATION, Albert G. Boyce, Jr. a Texas Corporation President and Secretary By: HHB, Inc., a California By: ________________________________ corporation Bettianne H. Bowen, President Managing General Partner By: ________________________________ Cheryl Bailey Harrison, Secretary By: __________________________ _________________________________ James L. Hinkle, President James L. Hinkle and Secretary By: Paso Energy, Inc., a California _________________________________ corporation John T. Hinkle Managing General Partner ___________________________________ Albert G. Boyce, Jr., as Trustee of Trust By: __________________________ B under Will of Albert G. Boyce, Sr., John W. Tannehill, President Deceased and Secretary ____________________________________ William J. Boyce ______________________________________ _______________________________ Delmar R. Archibald, as Trustee of the Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated Delmar R. Archibald Family Trust, June 22, 1982 dated June 22, 1982 ______________________________________ ____________________________________ Gail Kay Tannehill, as Trustee of the John W. Tannehill Gail Kay Tannehill Family Trust, dated April 9, 1996 ____________________________________ Thomas H. Tannehill ______________________________________ ____________________________________ Lisle Q. Tannehill Mary K. Boyce

3 ______________________________________ ____________________________________ Bettianne H. Bowen Albert G. Boyce V "Seller"

4 SCHEDULE A TO EXHIBIT 3 BILL OF SALE ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT, DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL.

1 EXHIBIT 4 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-181-17-00-4 220-181-18-00-7 220-191-03-00-6 220-181-24-00-4 220-181-09-00-1 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment"), dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL OIL COMPANY, a California general partnership, and those individuals and entities listed on Schedule A hereto (collectively, "Assignor"), whose address is 29091 Highway 33, Maricopa, California 93252, P.O. Box 98, Taft, California 93268, to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. 1. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and Tannehill Oil Company, et al. ("Purchase and Sale Agreement"), and subject to all contracts,

2 agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule B to this Assignment (hereinafter collectively called and referred to as the "Assets") and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Assets. 2. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. 3. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Assets conveyed hereby or intended so to be. 4. Schedules. Reference is made to Schedules A and B attached hereto and made a part hereof for all purposes. Reference in such Schedules to instruments on file or recorded in the public records are made for all purposes. 5. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. 6. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 7. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. 8. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedules A and B that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with complete Schedules A and B. Another counterpart of this Assignment with complete Schedules A and B shall be recorded in the official real property records of Kern County, California. 9. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction.

3 TANNEHILL OIL COMPANY, a California GENERAL WESTERN, INC., general partnership a New Mexico corporation By: Boyce Resource Development By: _______________________________ Company, a California corporation James L. Hinkle, President Managing General Partner and Secretary By: __________________________ Albert G. Boyce, Jr., President and Secretary VERNIER RESOURCES CORPORATION, a Texas Corporation By: HHB, Inc., a California corporation By: _______________________________ Managing General Partner Bettianne H. Bowen, President By: __________________________ By: _______________________________ James L. Hinkle, President Cheryl Bailey Harrison, Secretary and Secretary By: Paso Energy, Inc., a California ___________________________________ corporation John T. Hinkle Managing General Partner __________________________________ By: __________________________ James L. Hinkle John W. Tannehill, President and Secretary ____________________________________ Albert G. Boyce, Jr., as Trustee of Trust B _______________________________ under Will of Albert G. Boyce, Sr., Deceased William J. Boyce _____________________________________ ________________________________ Delmar R. Archibald, as Trustee of the Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated Delmar R. Archibald Family Trust, June 22, 1982 dated June 22, 1982 ______________________________________ ________________________________ Gail Kay Tannehill, as Trustee of the John W. Tannehill Gail Kay Tannehill Family Trust, dated April 9, 1996 ________________________________ Thomas H. Tannehill ______________________________________ ________________________________ Lisle Q. Tannehill Mary K. Boyce

4 ______________________________________ ________________________________ Bettianne H. Bowen Albert G. Boyce V "Assignor" BERRY PETROLEUM COMPANY, a Delaware corporation By: ________________________________ Jerry V. Hoffman, President By: ________________________________ Kenneth A. Olson, Secretary "Assignee"

1 SCHEDULE A TO EXHIBIT 4 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND OTHER CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. (UNRECORDED DOCUMENTS) ASSIGNORS 1. JAMES L. HINKLE 2. JOHN T. HINKLE 3. VERNIER RESOURCES CORPORATION, a Texas corporation 4. GENERAL WESTERN, INC., a New Mexico corporation 5. DELMAR R. ARCHIBALD FAMILY TRUST 6. LISLE Q. TANNEHILL 7. JOHN W. TANNEHILL 8. THOMAS H. TANNEHILL 9. GAIL KAY TANNEHILL FAMILY TRUST 10. TRUST B UNDER WILL OF ALBERT G. BOYCE, SR., DECEASED 11. BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation 12. WILLIAM J. BOYCE 13. MARY K. BOYCE 14. BETTIANNE H. BOWEN 15. ALBERT G. BOYCE V

1 SCHEDULE B TO EXHIBIT 4 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND OTHER CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. (UNRECORDED DOCUMENTS) 1. Paved Road Maintenance Letter from Texaco to San Joaquin Valley Air Pollution Control District dated 9-23-92. 2. Oil Sales Agreement between Texaco Trading & Transportation (purchase no. 16P85) and Tannehill Oil Company dated 6-13-88. 3. Oil Sales Agreement between Koch (lease no. 20390) and Tannehill Oil Company dated 11-9-90 and Amended 2-2-96. 4. Oil Sales Agreement between Koch (lease no. 28572) and Tannehill Oil Company, 90 day contract. 5. Waste Water Disposal Agreement between Oxy U.S.A., Inc. and Tannehill Oil Company dated 6-1-90. 6. Water District Agreement No. 8 between West Kern Water District and Tannehill Oil Company dated 5-17-83. 7. Water District Agreement No. 9 between West Kern Water District and Tannehill Oil Company dated 1-13-87. 8. Easement and Right-of-Way Pipeline Agreement by and between Texaco Inc., as Grantor and Mobil Exploration and Production U.S. Inc., as Grantee dated September 5, 1990. (CAMCL02221) 9. Private Road Easement and Right-of-Way Agreement by and between Texaco Inc., as Grantor and Oxy U.S.A. Inc., as Grantee dated November 28, 1988. (CAMCLO2225) 10. Private Road Easement and Right-of-Way by and between Texaco Inc., as Grantor and Berry Petroleum Company, as Grantee dated January 3, 1989. (CAMCLO1009) 11. Private Road Easement and Right-of-Way by and between Texaco Inc., as Grantor and Berry Petroleum Company, as Grantee dated January 3, 1989. (CAMCLO1010) 12. Roadway Easement by and between Texaco Inc., as Grantor and Chevron U.S.A. Inc., as Grantee dated December 22, 1988. (CAMCLO2223) 13. Road Right-of-Way and Easement by and between Texaco Inc., as Grantor and Chalk Cliff Ltd., as Grantee dated September 8, 1988. 14. Road Maintenance Agreement between Berry Petroleum Company, as Grantor and Exxon Corporation, as Grantee dated September 8, 1988. (CAMCL01110)

2 15. Roadway Agreement by and between Texaco, as Grantor and Monarch Cogeneration, as Grantee dated April 13, 1987. 16. Pipeline Lease Agreement from Texaco Inc., as Lessor to Tannehill Oil Company, as Lessee dated June 16, 1993. 17. Road Right-of-Way for Cogeneration (from Hwy 33) between Oxy, as Grantor and Tannehill Oil Company, as Grantee dated October 15, 1984. 18. Pipeline Right-of-Way between The Texas Company (Texaco), as Grantor, and Union Oil Company of California, as Grantee dated May 15, 1953. (CAMCL02229) 19. Pipeline License Agreement between Shell Western E&P Inc., as Licensor, and Tannehill Oil Company, as Licensee dated June 9, 1993. 20. Pipeline License Agreement between Mobil Exploration & Producing U.S. Inc., as Licensor and Tannehill Oil Company, as Licensee dated May 11, 1993. (CAMCL02153) 21. Pipeline License Agreement between Shell Western E&P Inc., as Licensor and Tannehill Oil Company, as Licensee dated April 13, 1993. 22. Pipeline Easement between Oxy U.S.A. Inc., as Grantor and Tannehill Oil Company, as Grantee dated June 1, 1993. 23. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System and Berry Petroleum Company, as Operator dated July 23, 1992. (CAMCL02057) 24. Pipeline License Agreement (BDT) between Mobil Exploration & Producing U.S. Inc., South Midway BDT Service Pipeline System and Berry Petroleum Company, as Operator dated February 1, 1992. (CAMCL02057) 25. Pipeline License Agreement (BDT) between Texaco Exploration and Production Inc., and South Midway BDT Service Pipeline System, and Berry Petroleum Company, as Operator dated March 20, 1992. (CAMCL02058) 26. Pipeline License Agreement (BDT) between Fredric McCleery, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, Grantee dated March 16, 1992. (CAMCL02060) 27. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., South Midway BDT Service Pipeline System and Berry Petroleum Company dated July 23, 1992 for Nancy Snyder R-O-W dated March 11, 1992. (CAMCL01180) 28. Pipeline License Agreement (BDT) between Nancy M. Snyder, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 11, 1992. (CAMCL01180) 29. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System, and Berry Petroleum Company, Operator dated July 23, 1992 for Masonic Homes of California R-O-W dated March 13, 1992. (CAMCL02116) 30. Pipeline License Agreement (BDT) between Betsy M. Vetter, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 13, 1992. (CAMCL02116)

3 31. Consent to Pipeline Easement (BDT) between Oxy U.S.A. Inc., First Party and South Midway BDT Service Pipeline System, and Berry Petroleum Company, Operator dated July 23, 1992 for Betsy M. Vetter R-O-W dated March 3, 1992. (CAMCL02117) 32. Pipeline License Agreement (BDT) between Masonic Homes of California, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated March 3, 1992. (CAMCL02117) 33. Pipeline License Agreement (BDT) between Oxy U.S.A. Inc, as Grantor and Berry Petroleum Company, Chalk Cliff Limited, and Tannehill Oil Company, as Grantee dated May 20, 1991. (CAMCL02149) 34. Pipeline License Agreement (BDT) between James F. Thacher, successor in title to John L. Bradley, as Licensor and South Midway BDT Pipeline System, as Licensee dated March 31, 1992. (CAMCL02056) 35. Pole Line Easement between Hinkle Resources, et al., as Grantor and Pacific Gas and Electric Company, as Grantee dated September 15, 1984. 36. Surface Lease Agreement between Tannehill Oil Company, as Lessor and Berry Petroleum Company, as Lessee, dated June 23, 1993. (CAMCL02151) 37. Agreement for a 6" steam line and 4" water line between Shell Western E&P Inc., as Grantor and Tannehill Oil Company, as Grantee dated May 14, 1990. 38. Letter regarding a right-of-way for a 3" water disposal line and a 6" steam line, to Mobil Exploration & Producing Inc. from Tannehill Oil Company (Russell Goff) dated April 12, 1990. (CAMCL01048) 39. Pipeline License Agreement between Mobil Exploration & Producing Inc., as Grantor and Tannehill Oil Company, as Grantee with Berry Petroleum Company's consent, dated May 29, 1990. (CAMCL01048) 40. Pipeline License Agreement between Tannehill Oil Company, as Licensor and Berry Petroleum Company, as Licensee dated August 9, 1995. (CAMCL02187) 41. Pipeline License Agreement between Berry Petroleum Company, as Grantor to Tannehill Oil Company, as Grantee dated June 23, 1993. (CAMCL02142) 42. Easement between Tannehill Oil Company, as Licensor and Mobil Exploration & Producing, Inc. as Licensee dated September 1, 1993. 43. Temporary Access Agreement between Tannehill Oil Company, as Grantor and Mobil Exploration & Producing, Inc., as Grantee dated June 27, 1991. 44. Phone Line Right-of-Way between Mobil Exploration & Production Inc., as Grantor and Tannehill Oil Company, as Grantee dated August 1993. 45. Agreement (BDT) between Solar Cogeneration, Southwest Contractors and Tannehill Oil, dated February 1992. 46. License Agreement between Monarch Cogeneration 1986-1, as Licensor and AWAM Petroleum Inc., and Albert G. Boyce, Jr., as Licensee and Southwest Contractors, as Contractor, (unsigned draft only), dated February 19, 1993. 47. Lease Agreement between Texaco Trading & Transportation Inc., as Lessor and Tannehill Oil Company, as Lessee dated June 16, 1993.

4 48. Waste Water Pipeline R-O-W between Texaco Producing Inc., as Grantor and Chalk Cliff Cogeneration, as Grantee, not dated or signed, status unknown. (CAMCL02222) 49. Road R-O-W Agreement by and between Texaco, Inc., as Grantor and Chalk Cliff Limited, as Grantee, dated December 12, 1988. (CAMCL02224) 50. Pipeline R-O-W Agreement by and between Texaco, Inc., as Grantor and Berry Holding Company, as Grantee dated May 24, 1982. (CAMCL01139) 51. Private Road by and between Texaco, Inc., as Grantor and Exxon Corporation, as Grantee dated June 27, 1988. (CAMCL02228) 52. Pipeline R-O-W Agreement by and between Texaco, Inc., as Grantor and Berry Holding Company, as Grantee dated October 27, 1966. (CAMCL01076) 53. Pipeline Agreement by and between Texaco, Inc., as Grantor and Socony Mobil Oil Company, as Grantee dated April 28, 1965. (CAMCL02226) 54. Pole Line R-O-W by and between The Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated May 11, 1955. (CAMCL02227) 55. Power and Pole Line Agreement by and between the Texas Company, as Grantor and Pacific Gas and Electric Company, as Grantee dated August 8, 1944. (CAMCL02230) 56. Pipeline Agreement by and between the Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated January 23, 1939. (CAMCL02231) 57. Pipeline Agreement by and between The Texas Company, as Grantor and Standard Oil Company of California, as Grantee dated November 23, 1937. (CAMCL02232) 58. Pipeline Agreement by and between The Texas Company, as Grantor and Standard Gasoline Company, as Grantee dated August 14, 1936. (CAMCL02233) 59. Water Pipeline Agreement by and between The Texas Company, as Grantor and Western Water Company, as Grantee dated January 13, 1936. (CAMCL02234) 60. A Right-of-Way between Albert G. Boyce, Jr., et al. and Security Pacific Leasing Corporation dated August 24, 1994. 61. A Right-of-Way between Tannehill Oil Company and Security Pacific Leasing Corporation dated August 24, 1994. 62. An Easement between Tannehill Oil Company and Security Pacific Leasing Corporation dated August 26, 1994. 63. An Agreement governing the Joint Venture for the Kern River-Mojave Pipeline Lateral among Mobil Oil Corporation, Berry Petroleum Company, Chalk Cliff Limited and Tannehill Oil Company dated December 2, 1991. 64. An Agreement governing the Joint Venture for the South Midway BDT Service Pipeline System among Berry Petroleum Company, Chalk Cliff Limited and Tannehill Oil Company dated January 8, 1992.

5 65. An interruptible Transportation Agreement between Mojave Pipeline Operating Company, as Transporter and Tannehill Oil Company, as Shipper, dated March 1, 1995.

1 EXHIBIT 5 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: Berry Petroleum Company Jerry V. Hoffman, President 28700 Hovey Hills Road Post Office Bin X Taft, California 93265 A.P.N. 220-181-17-00-4 220-181-18-00-7 220-191-03-00-6 220-181-24-00-4 220-181-09-00-1 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS THIS ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND CONTRACTS ("Assignment"), dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL OIL COMPANY, a California general partnership, and those individuals and entities listed on Schedule A hereto (collectively, "Assignor"), whose address is 29091 Highway 33, Maricopa, California 93252, P.O. Box 98, Taft, California 93268 to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignee"), whose address is 28700 Hovey Hills Road, Post Office Bin X, Taft, California 93268. 1. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and

2 Tannehill Oil Company et al. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of Assignor's right, title and interest in and to the interests and rights described in Schedule B to this Assignment (hereinafter collectively called and referred to as the "Assets") and all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Assets. 2. Assumptions. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. 3. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Assets conveyed hereby or intended so to be. 4. Schedules. Reference is made to Schedules A and B attached hereto and made a part hereof for all purposes. Reference in such Schedules to instruments on file or recorded in the public records are made for all purposes. 5. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. 6. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns. 7. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. 8. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of Schedules A and B that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with complete Schedules A and B. Another counterpart of this Assignment with complete Schedules A and B shall be recorded in the official real property records of Kern County, California.

3 9. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL OIL COMPANY, a California GENERAL WESTERN, INC., general partnership a New Mexico corporation By: Boyce Resource Development By: ________________________________ Company, a California corporation James L. Hinkle, President Managing General Partner and Secretary By: __________________________ Albert G. Boyce, Jr., President and Secretary VERNIER RESOURCES CORPORATION, a Texas Corporation By: HHB, Inc., a California corporation By: _______________________________ Managing General Partner Bettianne H. Bowen, President By: __________________________ By: _______________________________ James L. Hinkle, President Cheryl Bailey Harrison, Secretary and Secretary By: Paso Energy, Inc., a California ________________________________ corporation John T. Hinkle Managing General Partner ________________________________ By: __________________________ James L. Hinkle John W. Tannehill, President and Secretary __________________________________ Albert G. Boyce, Jr., as Trustee of Trust B under Will of Albert G. Boyce, Sr., Deceased ______________________________________ William J. Boyce ______________________________________ ______________________________ Delmar R. Archibald, as Trustee of the Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated Delmar R. Archibald Family Trust, June 22, 1982 dated June 22, 1982 ______________________________________ ______________________________ Gail Kay Tannehill, as Trustee of the John W. Tannehill

4 Gail Kay Tannehill Family Trust, dated April 9, 1996 ____________________________________ Thomas H. Tannehill _________________________________ ___________________________________ Lisle Q. Tannehill Mary K. Boyce _________________________________ ___________________________________ Bettianne H. Bowen Albert G. Boyce V "Assignor" BERRY PETROLEUM COMPANY, a Delaware corporation By: ________________________________ Jerry V. Hoffman, President By: ________________________________ Kenneth A. Olson, Secretary "Assignee"

1 SCHEDULE A TO EXHIBIT 5 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND OTHER CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. (RECORDED DOCUMENTS) ASSIGNORS 1. JAMES L. HINKLE 2. JOHN T. HINKLE 3. VERNIER RESOURCES CORPORATION, a Texas corporation 4. GENERAL WESTERN, INC., a New Mexico corporation 5. DELMAR R. ARCHIBALD FAMILY TRUST 6. LISLE Q. TANNEHILL 7. JOHN W. TANNEHILL 8. THOMAS H. TANNEHILL 9. GAIL KAY TANNEHILL FAMILY TRUST 10. TRUST B UNDER WILL OF ALBERT G. BOYCE, SR., DECEASED 11. BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation 12. WILLIAM J. BOYCE 13. MARY K. BOYCE 14. BETTIANNE H. BOWEN 15. ALBERT G. BOYCE V

2 SCHEDULE B TO EXHIBIT 5 ASSIGNMENT OF LEASES, RIGHTS OF WAY, EASEMENTS AND OTHER CONTRACTS ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996, BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. (RECORDED DOCUMENTS) 1. A premises Lease dated August 15, 1994, between Albert G. Boyce, Jr. as Trustee of Trust B under Will of Albert G. Boyce, Sr., et. al., as Lessor and Security Pacific Leasing Corporation as Lessee, recorded August 26, 1994 in Book 7079, Page 2007, Official Records. 2. Agreement for the Sale and Delivery of Oil Between Monte Cristo Oil and Development Company and Standard Oil Company, recorded March 18, 1910 in Book 21, Page 139 of Agreements. 3. Memorandum of Operating Agreement between Tannehill Oil Company and Delmar R. Archibald, et. al., for the production of oil and gas, recorded August 18, 1992 in Book 6715, Page 661, Official Records. 4. Road Agreement between Oxy USA, Inc. and Tannehill Oil Company, recorded December 27, 1988 in Book 6194, Page 1339, Official Records. 5. Road Right of Way Agreement between Oxy U.S.A. Inc. and Monarch Co-Generation 1986-1, a California limited partnership, recorded December 27, 1988 in Book 6194, Page 1351, Official Records. 6. Grant of Easement between Masonic Homes of California, a corporation and Tannehill Oil Company, recorded March 6, 1985 in Book 5740, Page 170, Official Records.

3 Tannehill Oil Company STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: Kern County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: Tannehill Oil Company, a California general partnership, James L. Hinkle; John T. Hinkle; Vernier Resources Corporation, a Texas corporation; General Western, Inc., a New Mexico corporation; Delmar R. Archibald Family Trust; Lisle Q. Tannehill; John W. Tannehill; Thomas H. Tannehill; Gail Kay Tannehill Family Trust; Trust B under Will of Albert G. Boyce, Sr., Deceased; Boyce Resource Development Company, a California corporation; William J. Boyce; Mary K. Boyce; Bettianne H. Bowen; and Albert G. Boyce V. [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T12N, R24W, Section 33, APNs 220-181-17-00-4; 220-181-18-00-7; 220-191-03-00-6; 220-181-24-00-4; 220-181-09-00-1 Amounts to: $______0_________ Amounts to: $_________________ (X) Unincorporated Area ( ) City of_________________ (X) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining and encumbrances remaining Documentary Transfer Tax $____________ Computed on full value of property conveyed Tannehill Oil Company By: _________________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: _____________________________ By:___________________________________ Title:____________________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

1 EXHIBIT 6 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. RECORDING REQUESTED BY AND WHEN RECORDED MAIL TO: NORDMAN, CORMANY, HAIR & COMPTON Attn: Laura K. McAvoy, Esq. 1000 Town Center Drive, 6th Floor Post Office Box 9100 Oxnard, California 93031-9100 MAIL TAX STATEMENTS TO: BERRY PETROLEUM COMPANY Attn: Jerry V. Hoffman Post Office Bin X Taft, California 93268 A.P.N. 098-170-14-00-4 ASSIGNMENT OF OIL AND GAS LEASES THIS ASSIGNMENT OF OIL AND GAS LEASES ("Assignment"), dated and effective as of 12:01 a.m. Pacific Standard Time, on October 1, 1996 (the "Effective Date"), is from TANNEHILL OIL COMPANY, a California general partnership, whose address is 29091 Highway 33, Maricopa, California 93252, P.O. Box 98, Taft, California 93268, and those individuals and entities listed on Schedule A (collectively "Assignor"), to BERRY PETROLEUM COMPANY, a Delaware corporation ("Assignor"), whose address is Post Office Bin X, 28700 Hovey Hills Road, Taft, California 93268. 1. Assignment. For the sum of Ten Dollars ($10) and other good and valuable consideration, the receipt and sufficiency of which Assignor hereby acknowledges, Assignor hereby transfers, grants, bargains, conveys and assigns to Assignee, effective for all purposes as of the Effective Date, subject to the terms and conditions set forth in that certain Purchase and Sale Agreement dated November 8, 1996, by and between Berry Petroleum Company and Tannehill Oil Company et al. ("Purchase and Sale Agreement"), and subject to all contracts, agreements, encumbrances and other matters to which the following assets are subject as of the Effective Date, all of the following assets (such assets are hereinafter collectively called and referred to as the "Assets"):

2 a. All of Assignor's right, title and interest in and to the oil, gas and mineral leasehold estates, overriding royalty, royalty and other interests and rights described in Schedule B to this Assignment. b. To the extent attributable or allocable to the Assets, all of Assignor's right, title and interest in and to (i) all wells, equipment and facilities which constitute fixtures and are located on or used directly in connection with production, treatment or transportation of oil and gas from the Assets; (ii) all oil and gas produced after the Effective Date; and (iii) all other rights, privileges, obligations, benefits and powers conferred upon the owner or holder of the Assets. 2. Assumption. Assignee hereby assumes and agrees to pay, perform and discharge its obligations under the Assets, and the agreements, associated contracts and other burdens pertaining thereto, which accrue and relate to, or are based upon or arise out of, events occurring after the Effective Date, all in accordance with the terms of the Purchase and Sale Agreement. 3. Further Assurances. The parties agree to take all such further actions and execute, acknowledge and deliver all such further documents that are necessary or useful in carrying out the purposes of this Assignment. So long as authorized by applicable law so to do, Assignor hereby agrees to execute, acknowledge and deliver to Assignee all such other additional instruments, notices, division orders, transfer orders and other documents and to do all such other and further acts and things as may be necessary to more fully and effectively grant, convey, transfer and assign to Assignee the Assets conveyed hereby or intended so to be. 4. Governmental Assignments. Separate assignments of certain of the Oil and Gas Leases may be executed on officially approved forms by Assignor to Assignee in sufficient counterparts to satisfy applicable statutory and regulatory requirements. Those assignments shall incorporate this Assignment by reference and be deemed to contain all of the exceptions, reservations, rights, titles, powers and privileges set forth herein and in the Purchase and Sale Agreement as fully as though they were set forth in each such assignment. The interests conveyed by such separate assignments are the same, and not in addition to, the Assets conveyed herein. 5. Schedules. Reference is made to the Schedules attached hereto and made a part hereof for all purposes. Reference in such Schedules to instruments on file or recorded in the public records are made for all purposes. 6. Headings. Headings are included in this Assignment for convenience of reference and shall in no way define, limit, extend, or describe the scope or intent of any provision of this Assignment. 7. Successors and Assigns. This Assignment shall bind and inure to the benefit of Assignor and Assignee and their respective successors and assigns.

3 8. Multiple Counterparts. This Assignment may be executed in any number of counterparts and each counterpart hereof shall be deemed to be an original instrument but all of such counterparts shall constitute but one assignment. 9. Recordation. To facilitate recording or filing of this Assignment, each counterpart filed with a federal or state agency or office may contain only those portions of the Schedule that describe property under the jurisdiction of that agency or office. Assignor and Assignee have each retained a counterpart of this Assignment with complete Schedules. Another counterpart of this Assignment with complete Schedules shall be recorded in the official real property records of Kern County, California. 10. Governing Law. The provisions of this Assignment shall be governed by and construed in accordance with the laws of the State of California, excluding any conflicts of law, rule or principle that might refer same to the laws of another jurisdiction. TANNEHILL OIL COMPANY, a California GENERAL WESTERN, INC., general partnership a New Mexico corporation By: Boyce Resource Development By: _______________________________ Company, a California corporation James L. Hinkle, President Managing General Partner By: __________________________ Albert G. Boyce, Jr., President and Secretary By: HHB, Inc., a California VERNIER RESOURCES CORPORATION, corporation a Texas corporation Managing General Partner By: _________________________________ By: __________________________ Bettianne H. Bowen, President James L. Hinkle, President and Secretary By: ______________________________ Cheryl Bailey Harrison, Secretary By: Paso Energy, Inc., a California ________________________________ corporation James L. Hinkle Managing General Partner By: __________________________ _________________________________ John W. Tannehill, President John T. Hinkle and Secretary

4 ___________________________________ ______________________________ Albert G. Boyce, Jr., as Trustee of Trust William J. Boyce B under Will of Albert G. Boyce, Sr., Deceased ______________________________________ ______________________________ Delmar R. Archibald, as Trustee of the Joy A. Archibald, as Trustee of the Delmar R. Archibald Family Trust, dated Delmar R. Archibald Family Trust, June 22, 1982 dated June 22, 1982 ______________________________________ ________________________________ Gail Kay Tannehill, as Trustee of the John W. Tannehill Gail Kay Tannehill Family Trust dated April 9, 1996 _______________________________ Thomas H. Tannehill ______________________________________ _________________________________ Lisle Q. Tannehill Mary K. Boyce ______________________________________ _________________________________ Bettianne H. Bowen Albert G. Boyce V "Assignor" BERRY PETROLEUM COMPANY, a Delaware corporation By: ________________________________ Jerry V. Hoffman, President By: ________________________________ Kenneth A. Olson, Secretary "Assignee"

1 CONSENT TO ASSIGNMENT OF OIL, GAS AND MINERAL LEASE Albert A. Geiger and Lois J. Geiger, Lessor in that certain Oil, Gas and Mineral Lease dated February 25, 1977, covering the following described real property in Kern County, California, a Short Form of which lease was recorded July 12, 1977, in Book 5040, Page 911, Official Records of Kern County, California, and assigned by Assignment of Oil, Gas and Mineral Lease dated August 19, 1977, and recorded July 13, 1978, in Book 5124, Page 1288, Official Records of Kern County, from W.D. Newsome & Associates, as Assignor, to Tannehill Oil Company, as Assignee, hereby consent to the assignment of the aforesaid lease by Tannehill Oil Company, as Assignor, to Berry Petroleum Company, as Assignee. Township 29 South, Range 21 East, M.D.B & M: Section 28: S/2 N/2 N/2 NE/4 This consent is executed effective as of _______________, 1996. Albert A. Geiger Lois J. Geiger

2 SCHEDULE A TO EXHIBIT 6 ASSIGNMENT OF OIL AND GAS LEASES ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996 BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. 1. JAMES L. HINKLE 2. JOHN T. HINKLE 3. VERNIER RESOURCES CORPORATION, a Texas corporation 4. GENERAL WESTERN, INC., a New Mexico corporation 5. DELMAR R. ARCHIBALD FAMILY TRUST 6. LISLE Q. TANNEHILL 7. JOHN W. TANNEHILL 8. THOMAS H. TANNEHILL 9. GAIL KAY TANNEHILL FAMILY TRUST 10. TRUST B UNDER WILL OF ALBERT G. BOYCE, SR., DECEASED 11. BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation 12. WILLIAM J. BOYCE 13. MARY K. BOYCE 14. BETTIANNE H. BOWEN 15. ALBERT G. BOYCE V

1 SCHEDULE B TO EXHIBIT 6 ASSIGNMENT OF OIL AND GAS LEASES ATTACHED TO AND MADE A PART OF THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED NOVEMBER 8, 1996 BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, ET AL. Oil and Gas Lease, dated February 25, 1977, by and between Albert A. and Lois J. Geiger and W. D. Newsome & Associates, a short form of which lease was recorded July 12, 1977 in Book, 5040, Page 911, Official Records of Kern County, regarding that certain real property described as follows: Township 29 South, Range 21 East, M.D.B.M., Section 28 S1/2 N1/2 N1/2 NE1/4 which lease was assigned by W.D. Newsome and Associates to Tannehill Oil Company, a California general partnership on or about August 19, 1977, and recorded July 13, 1978, in Book 5124, Page 1288, Official Records of Kern County.

2 Tannehill Oil Company STATEMENT OF TAX DUE UNDER PROVISIONS OF THE DOCUMENTARY STAMP ACT and REQUEST THAT STAMPS NOT BE MADE A PART OF THE PERMANENT RECORD TO: Kern County Recorder THE TAX DUE PURSUANT TO THE PROVISIONS OF THE DOCUMENTARY STAMP ACT ON THE DEED, TRANSFER, OR CONVEYANCE FROM: Tannehill Oil Company, a California general partnership; James L. Hinkle; John T. Hinkle; Vernier Resources Corporation, a Texas corporation; General Western, Inc., a New Mexico corporation; Delmar R. Archibald Family Trust; Lisle Q. Tannehill; John W. Tannehill; Thomas H. Tannehill; Gail Kay Tannehill Family Trust; Trust B Under Will of Albert G. Boyce, Sr., Deceased; Boyce Resource Development Company, a California corporation; William J. Boyce; Mary K. Boyce; Bettianne H. Bowen; and Albert G. Boyce V. [Name of Grantor(s) or Lessor(s)] TO: Berry Petroleum Company [Name of Grantee(s) or Lessee(s)] OF THE FOLLOWING BRIEFLY DESCRIBED REAL PROPERTY: T12N, R24W, Section 33, APNs 220-181-17-00-4; 220-181-18-00-7; 220-191-03-00-6; 098-170-14-00-4 Amounts to: $_____5.50_______ Amounts to: $___________________ (X) Unincorporated Area ( ) City of __________________ ( ) Computed on full value ( ) Computed on full value ( ) Computed on full value LESS liens ( ) Computed on full value LESS and encumbrances remaining liens and encumbrances remaining Documentary Transfer Tax $____________ Computed on full value of property conveyed Tannehill Oil Company By: _________________________________ Affix transfer Tax Stamp Here Stamp Reserved for Recorder's Coding Stamp Date: _______________________ By:___________________________ Title:____________________________ AFTER THE PERMANENT RECORD IS MADE, THIS DOCUMENT WILL BE ATTACHED TO THE CONVEYING DOCUMENT AND RETURNED TO THE PARTY ENTITLED THERETO. A COPY WILL BE MADE AND PLACED ON FILE FOR AUDITING PURPOSES.

1 EXHIBIT 7 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $3,700,000 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to SUNSET INVESTMENTS LLC, a California limited liability company, as the assignee of TANNEHILL OIL COMPANY, a California general partnership ("Promisee"), the sum of Three Million Seven Hundred Thousand Dollars ($3,700,000), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

2 THIS ALLONGE SHALL BE AFFIXED TO THAT CERTAIN PROMISSORY NOTE (THE "NOTE"), DATED NOVEMBER 8, 1996, IN THE PRINCIPAL AMOUNT OF $3.7 MILLION EXECUTED BY BERRY PETROLEUM COMPANY, A DELAWARE CORPORATION, FOR THE BENEFIT OF SUNSET INVESTMENT COMPANY, LLC, A CALIFORNIA LIMITED LIABILITY COMPANY. This Note is partial collateral under that certain Security Agreement (the "Security Agreement"), dated November 8, 1996, executed by Sunset Investment Company, LLC, a California limited liability company, for the benefit of Monarch Cogeneration 1986-1, A California Limited Partnership, a limited partnership organized under the laws of the State of California, Caterpillar Capital Company, Inc., a Delaware corporation, Solar Turbines Incorporated, a Delaware corporation, and Berry Petroleum Company, a Delaware corporation. The terms and conditions of the Security Agreement shall govern, among other things, the payments under the Note and restrictions on the transfer of the Note. SUNSET INVESTMENT COMPANY, LLC, a California limited liability company By: BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation, as a Managing Member Dated: November ___, 1996 By: ____________________________ Albert G. Boyce, Jr., President and Secretary By: HHB, INC., a California corporation, as a Managing Member Dated: November ___, 1996 By: ____________________________ James L. Hinkle, President and Secretary By: PASO ENERGY, INC., a California corporation, as a Managing Member Dated: November ___, 1996 By: ____________________________ John W. Tannehill, President and Secretary

1 EXHIBIT 8A TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $450,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to JOHN T. HINKLE ("Promisee"), the sum of Four Hundred Fifty Thousand Dollars ($450,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

2 EXHIBIT 8B TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $450,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to BETTIANNE H. BOWEN ("Promisee"), the sum of Four Hundred Fifty Thousand Dollars ($450,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

3 EXHIBIT 8C TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $300,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to THOMAS H. TANNEHILL ("Promisee"), the sum of Three Hundred Thousand Dollars ($300,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

4 EXHIBIT 8D TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $650,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to WILLIAM J. BOYCE ("Promisee"), the sum of Six Hundred Fifty Thousand Dollars ($650,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

5 EXHIBIT 8E TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $925,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to ALBERT G. BOYCE JR., as trustee of Trust "B" under the Will of Albert G. Boyce, Sr., deceased ("Promisee"), the sum of Nine Hundred Twenty-Five Thousand Dollars ($925,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

6 EXHIBIT 8F TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. PROMISSORY NOTE (Unsecured) $425,000.00 Taft, California November _, 1996 FOR VALUE RECEIVED, BERRY PETROLEUM COMPANY, a Delaware corporation ("Promisor"), hereby promises to pay to ALBERT G. BOYCE, V. ("Promisee"), the sum of Four Hundred Twenty-Five Thousand Dollars ($425,000.00), together with simple interest thereon at the rate of four percent (4%) per annum commencing on _______________, 1996. This Note shall mature on January 6, 1997, at which time all accrued interest and unpaid principal shall be due and payable in full. Promisor promises to pay all costs, including, without limitation, attorneys' fees, of enforcement of any remedies, including, without limitation, collection of the obligation evidenced hereby, upon default by Promisor in the performance of any duty or obligation arising out of or in connection with this Note. All payments shall be made in lawful money of the United States. BERRY PETROLEUM COMPANY, a Delaware corporation By: _____________________________________ Jerry V. Hoffman, President By: _____________________________________ Kenneth A. Olson, Secretary "Promisor"

1 EXHIBIT 9 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. REAL PROPERTY 1. Parcel 1: That certain portion of the East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., described as Parcel 1 of Parcel Map 8297 in the unincorporated area of the County of Kern, State of California, as per Map recorded January 20, 1989 in Book 37, pages 134 and 135 of Parcel Maps, in the Office of the County Recorder of said County. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11, 1902. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel. Parcel 2: The East half of the Northeast quarter of Section 33, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to November 11 1902. EXCEPTING therefrom a portion of said land now known as Parcel 1 of Parcel Map no. 8297 recorded January 20, 1989 in Book 37, page 134 and 135 of Parcel Maps. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel.

2 Parcel 3: The Northwest quarter of the Northwest quarter of Section 34, Township 12 North, Range 24 West, S.B.B.M., in the unincorporated area of the County of Kern, State of California, as per the official plat thereof on file in the Office of the Surveyor General. EXCEPTING therefrom any vein or lode of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper or other valuable deposits within the land above described which may have been discovered or known to exist on or prior to May 13, 1901. EXCEPTING AND RESERVING therefrom a royalty of four percent (4%) of all oil, gas and other hydrocarbon substances produced from zones lying below 4,500 feet below the surface of the above described parcel. 2. Oil and Gas Lease, dated February 25, 1977, by and between Albert A. and Lois J. Geiger and W.D. Newsome and Associates, regarding that certain real property described as follows: Township 29 South, Range 21 East, M.D.B.M., Section 28 S1/2 N1/2 N1/2 NE1/4 and assigned by W.D. Newsome and Associates to Tannehill Oil Company, a California general partnership on or about August 19, 1977

1 EXHIBIT 10 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. ALLOCATION OF PURCHASE PRICE THE PARTIES AGREE TO THE ALLOCATION OF PURCHASE PRICE AS REPRESENTED ON IRS FORM 8594 ATTACHED HERETO FORM 8594 ASSET ACQUISITION STATEMENT OMB No. 1545-1021 (Rev Jan 1996) UNDER SECTION 1060 Department of the Treasury Attachment Internal Revenue Service Sequence No. 61 Attach to your Federal income tax return Name as Shown on return Identification number as shown on return Tannehill Oil Company 94-1546098 Check the box that identifies you Buyer (X) Seller Part 1 General Information - to be completed by all filers. 1. Name of other party to the transaction Berry Petroleum Company Other party's identification number 77-0079387 Address (number, street, and room or suite no.) 28700 Hovey Hills Road, P.O. Bin X Taft, California 93268 2. Date of Sale 3. Total sales price October 1, 1996 $2,285,000 Part II Assets Transferred - to be completed by all filers of an original statement 4. Assets Aggregate Fair Market Value Allocation of Sales price (Actual Amount for Class I) Class I $ $ Class II $ $ Class III $ $ 2,285,000 Class IV $ $ Total $ $ 2,285,000 5. Did the buyer and seller provide for an allocation of the sales price in the sales contract or in another written document signed by both parties? (X) Yes No If Yes, are the aggregate fair market values listed for each of asset Classes I, II, III and IV the amounts agreed upon in your sales contract or in a separate written document? (X) Yes No 6. In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to complete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes (X) No If Yes, specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. For Paperwork Reduction Act Notice, see instructions. Cat. No. 63768Z Form 8592 (Rev. 1-96) 2/19/96 Published by Tax Management Inc., a subsidiary of The Bureau of National Affairs, Inc. 8594.I

2 Form 8594 (Rev. 1-96) Page 2 Part III Supplemental Statement - To be completed only if amending an original statement or previously filed supplemental statement because of an increase or decrease in consideration. 7. Assets Allocation of Sales Price Increase or Redetermined Allocation as previously reported (Decrease) of Sales Price Class I $ $ $ Class II $ $ $ Class III $ $ $ Class IV $ $ $ Total $ $ $ 8. Reason(s) for increase or decrease. Attach additional sheets if more space is needed. 9. Tax year and tax return form number with which the original form 8594 and any supplemental statements were filed. 8594.2 Published by Tax Management Inc., a Subsidiary of The Bureau of National Affairs, Inc. 2/19/96

1 FORM 8594 ASSET ACQUISITION STATEMENT OMB No. 1545-1021 (Rev Jan 1996) UNDER SECTION 1060 Department of the Treasury Attachment Internal Revenue Service Sequence No. 61 Attach to your Federal income tax return Name as Shown on return Identification number as shown on return Berry Petroleum Company 77-0079389 Check the box that identifies you (X) Buyer ( ) Seller Part 1 General Information - to be completed by all filers. 1. Name of other party to the transaction Tannehill Oil Company Other party's identification number 94-1546098 Address (number, street, and room or suite no.) P.O. Box 98 Taft, California 93268 2. Date of Sale 3. Total sales price October 1, 1996 $2,285,000 Part II Assets Transferred - to be completed by all filers of an original statement 4. Assets Aggregate Fair Market Value Allocation of Sales Price (Actual Amount for Class I) Class I $ $ Class II $ $ Class III $ $ 2,285,000 Class IV $ $ Total $ $ 2,285,000 5. Did the buyer and seller provide for an allocation of the sales price in the sales contract or in another written document signed by both parties? (X) Yes No If Yes, are the aggregate fair market values listed for each of asset Classes I, II, III and IV the amounts agreed upon in your sales contract or in a separate written document? (X) Yes No 6. In connection with the purchase of the group of assets, did the buyer also purchase a license or a covenant not to complete, or enter into a lease agreement, employment contract, management contract, or similar arrangement with the seller (or managers, directors, owners, or employees of the seller)? Yes (X) No If Yes, specify (a) the type of agreement, and (b) the maximum amount of consideration (not including interest) paid or to be paid under the agreement. See the instructions for line 6. For Paperwork Reduction Act Notice, see instructions. Cat. No. 63768Z Form 8592 (Rev. 1-96)

2 Form 8594 (Rev. 1-96) 77-0079387 Page 2 Part III Class III, Intangible Amortizable Assets Only - Complete if applicable. The amounts shown below also must be included under Class III assets in Part II. Attach additional sheets if more space is needed. Assets Fair Market Value Useful Life Allocation of Sales Price $ $ $ $ $ $ $ $ $ $ Part IV Supplemental Statement - To be completed only if amending an original statement or previously filed supplemental statement because of anincrease or decrease in consideration N/A 7. Assets Allocation of Sales Price Increase or Redetermined Allocation as Previously Reported (Decrease) of Sales Price Class I $ $ $ Class II $ $ $ Class III $ $ $ Class IV $ $ $ Totals $ $ 8. Reason(s) for increase or decrease. Attach additional sheets if more space is needed. 9. Tax year and tax return form number with which the original form 8594 and any supplemental statements were filed.

1 EXHIBIT 11 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. CERTIFICATE OF SATISFACTION TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO NOVEMBER 8, 1996 (PARAGRAPH 2.12(e) THEREOF) The undersigned parties to that certain Purchase and Sale Agreement by and between Berry Petroleum Company, a Delaware corporation, and Tannehill Oil Company, a California general partnership, and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, Dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, Dated April 9, 1996; and Thomas H. Tannehill, as partners of Tannehill Oil Company, and individually, to be entered into this 8th day of November, 1996, declare that all conditions to the Closing have been satisfied and the transaction is Closed. BERRY PETROLEUM COMPANY, TANNEHILL OIL COMPANY, a a Delaware corporation California general partnership By: ___________________________ By: BOYCE RESOURCE DEVELOPMENT Jerry V. Hoffman, President COMPANY, a California and Chief Executive Officer corporation Managing General Partner By: ___________________________ Kenneth A. Olson, Secretary By: ___________________________ Albert G. Boyce, Jr., President and Secretary By: HHB, INC., a California corporation Managing General Partner By: __________________________ James L. Hinkle, President and Secretary By: PASO ENERGY, INC., a California corporation Managing General Partner By: ____________________________ John W. Tannehill, President and Secretary

1 EXHIBIT 12 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. ESCROW INSTRUCTIONS FIRST AMERICAN TITLE INSURANCE COMPANY MAIN OFFICE: 4540 CALIFORNIA AVENUE, SUITE 100 (93309) MAILING ADDRESS: P.O. BOX 1945, BAKERSFIELD, CA 93303 TELEPHONE (805) 327-5311 FACSIMILE (805) 327-8533 E S C R O W I N S T R U C T I O N S FIRST AMERICAN TITLE INSURANCE COMPANY CONDUCTS ESCROW BUSINESS UNDER CERTIFICATE OF AUTHORITY NO. 2787 ISSUED BY THE STATE OF CALIFORNIA DEPARTMENT OF INSURANCE. FINAL DRAFT Escrow Officer: NANCY J. SMITH Property: REAL PROPERTY AND ASSIGNMENT OF LEASES Escrow Number: 1125444N Date: November 4, 1996 To:FIRST AMERICAN TITLE INSURANCE COMPANY THESE INSTRUCTIONS ARE ENTERED INTO PURSUANT TO THAT CERTAIN PURCHASE AND SALE AGREEMENT DATED WHEN EXECUTED BY BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A GENERAL PARTNERSHIP, BOYCE RESOURCES DEVELOPMENT COMPANY, A CALIFORNIA CORPORATION; ALBERT G. BOYCE, JR., AS TRUSTEE OF TRUST B UNDER THE WILL OF ALBERT G. BOYCE SR., DECEASED; WILLIAM J. BOYCE; ALBERT G. BOYCE V; MARY K. BOYCE; JOHN T. HINKLE; BETTIANNE H. BOWEN; VERNIER RESOURCES CORPORATION, A TEXAS CORPORATION; JAMES L. HINKLE; GENERAL WESTERN, INC., A NEW MEXICO CORPORATION; DELMAR R. ARCHIBALD AND JOY A. ARCHIBALD, TRUSTEES OF THE DELMAR R. ARCHIBALD FAMILY TRUST, DATED JUNE 22, 1982; LISLE Q. TANNEHILL; JOHN W. TANNEHILL; GAIL KAY TANNEHILL, AS TRUSTEE OF THE GAIL KAY TANNEHILL FAMILY TRUST, DATED APRIL 9, 1996; AND THOMAS H. TANNEHILL, AS PARTNERS OF TANNEHILL OIL COMPANY AND INDIVIDUALLY A COPY OF WHICH IS ATTACHED HERETO. AS ESCROW HOLDER YOU SHALL BE CONCERNED ONLY WITH THOSE SPECIFIC PROVISIONS OF SAID CONTRACT SET FORTH AND ENUMERATED THEREIN AS FOLLOWS: #1.3, #1.5, #1.11, #2.1, #2.2, #2.3, #2.6 #2.7 CLARIFICATION: DISTRIBUTION OF SALE PROCEEDS AND RECORDATION OF DOCUMENTS WITH KERN COUNTY RECORDER WILL BE HANDLED AT THE OFFICE OF ESCROW HOLDER, FIRST AMERICAN TITLE INSURANCE COMPANY, 4540 CALIFORNIA #100, BAKERSFIELD, CA. 93309. THIS ESCROW TO CLOSE CONCURRENTLY WITH ESCROWS #1128321N AND #1125444N, #2.8 AND #2.9 CLARIFICATION: PARTIES TO SUPPLY ESCROW HOLDER WITH INFORMATION SO PRORATIONS CAN BE HANDLED THROUGH ESCROW OR NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT PRORATIONS WILL BE HANDLED OUTSIDE OF THIS ESCROW;

2 #2.11, #2.12 CLARIFICATION: DOCUMENTS TO BE DEPOSITED INTO ESCROW OR PARTIES TO NOTIFY ESCROW HOLDER BY MUTUAL WRITTEN INSTRUCTIONS THAT SAID DOCUMENTS HAVE BEEN DELIVERED OUTSIDE OF ESCROW, #2.14, ARTICLES VII AND VIII, DOCUMENTS WILL BE DEPOSITED AND APPROVED BY COUNSEL PRIOR TO CLOSE OF ESCROW. ALL PARTIES AGREE THAT TRANSFER OF SAID PROPERTY IS NOT BEING HANDLED THROUGH THE BULK SALE PROCESS. ESCROW HOLDER WILL NOT CONDUCT ANY UCC SEARCHES. NO TITLE INSURANCE OR GUARANTEES OF TITLE WILL BE ISSUED BY ESCROW HOLDER WITH REGARD TO PERSONAL PROPERTY BEING TRANSFERRED IN THIS ESCROW. A CLTA POLICY OF TITLE INSURANCE WILL BE ISSUED BY FIRST AMERICAN TITLE INSURANCE COMPANY IN THE AMOUNT AS SHOWN IN ALLOCATION FOR REAL PROPERTY AND COST FOR SAME WILL BE PAID BY TANNEHILL OIL COMPANY OTHERS LISTED AS SELLERS HEREIN. ANY AND ALL OTHER PROVISIONS OF SAID CONTRACT NOT ENUMERATED ABOVE IMPOSE NO DUTIES ON YOU AS ESCROW HOLDER AND ARE MATTERS OF AGREEMENT AND UNDERSTANDING BETWEEN THE PARTIES WITH WHICH YOU SHALL NOT BE CONCERNED. THE ATTACHED GENERAL PROVISIONS AND PAGE #1B ARE HEREBY MADE A PART OF THESE INSTRUCTIONS. TANNEHILL OIL COMPANY AND OTHERS SEE ATTACHED SIGNATURE BLOCK BERRY PETROLEUM COMPANY SEE ATTACHED SIGNATURE BLOCK

1 EXHIBIT 13 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO NOVEMBER 8, 1996 (PARAGRAPH 7.6 THEREOF) The undersigned certifies that Tannehill Oil Company has complied with the matters set forth in Sections 7.1, 7.2, 7.3 and 7.4 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company, a Delaware corporation, and Tannehill Oil Company, a California general partnership, and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, as partners of Tannehill Oil Company, and individually, entered into on November 8, 1996. Date: ___________________ TANNEHILL OIL COMPANY, a California general partnership By: BOYCE RESOURCE DEVELOPMENT COMPANY, a California corporation, Managing General Partner By: ______________________________ Albert G. Boyce, Jr., President and Secretary By: HHB, INC., a California corporation, Managing General Partner By: ______________________________ James L. Hinkle, President and Secretary By: PASO ENERGY, INC., a California corporation, Managing General Partner By: ______________________________ John W. Tannehill, President and Secretary

1 EXHIBIT 14 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. FORM OF OPINION OF COUNSEL TO TANNEHILL OIL COMPANY ______________, 1996 Berry Petroleum Company Attn: Jerry V. Hoffman President and Chief Executive Officer 28700 Hovey Hills Road Post Office Bin X Taft, CA 93268 Re: Berry Petroleum Company / Tannehill Oil Company, Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Tannehill Oil Company, a California general partnership ("Tannehill"), and individuals and entities that are partners of Tannehill Oil Company (the "Partners"), in connection with the sale of substantially all the assets of Tannehill and certain undivided mineral interests of the Partners to Berry Petroleum Company, a Delaware corporation ("Berry"), pursuant to that certain Purchase and Sale Agreement, dated ______________, 1996, by and between Tannehill, the Partners and Berry (the "Agreement"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Berry. Based on the foregoing, and in reliance thereon, but subject to the qualifications herein set forth, we are of the opinion that: 1. Tannehill is a general partnership duly organized and validly existing under, and by virtue of, the laws of the State of California and is in good standing under such laws. Tannehill has requisite power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Tannehill and the Partners have full power and authority to execute and deliver the Agreement and to perform their obligations under the terms of the Agreement. 3. All partnership action on the part of Tannehill and its Partners necessary for the authorization, execution, delivery and performance of the Agreement, and the consummation of the transactions contemplated thereby, has been taken. The Agreement has been duly executed

2 and delivered by Tannehill and its Partners and constitutes a legal, valid and binding obligation of Tannehill and its Partners, enforceable against them in accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. The Partners executing the Agreement are the beneficial owners of an aggregate of one hundred percent (100%) of the partnership interests in Tannehill (the "Partnership Interests"). There are no outstanding options, warrants, rights of first refusal, or other rights calling for the issuance of, or any security convertible into or exchangeable for, Partnership Interests and no other person or entity has any right in or to the Partnership Interests. 5. No consent, approval or authorization of or designation of Tannehill or the Partners is required in connection with the valid execution and delivery of the Agreement, or the consummation of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 6. To our best knowledge, no default exists and no event has occurred which would constitute a default under, or violation in the due performance and observance of any term, covenant or condition, or breach of, Tannehill's Partnership Agreement or any indenture, license, lease, franchise, mortgage, instrument, or other agreement to which Tannehill or its Partners are a party, or by which Tannehill or its Partners or their properties may be bound; or (a) an event that would permit any party to any agreement or instrument to terminate it or to accelerate the maturity of any indebtedness or other obligation of Tannehill or its Partners; (b) an event that would result in the creation or imposition of any lien, charge, or encumbrance on any asset of Tannehill or its Partners; or (c) an event that would conflict with any order, rule, or regulation directed to Tannehill or its Partners by any court or governmental agency or body having jurisdiction over it. 7. Except as disclosed in the Tannehill Disclosure Letter (as defined in the Agreement), to our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation pending or threatened against or affecting Tannehill or its Partners or any of their businesses or properties or financial or other condition. 8. Except as disclosed in the Tannehill Disclosure Letter, there are no agreements, written or oral, between Tannehill or its Partners and any other party that affect, directly or indirectly, the Assets (as defined in the Agreement). We are members of the bar of the State of California, and accordingly we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than federal law and the laws of the State of California.

3 This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This opinion letter is addressed to Berry for the benefit of Berry and is only for Berry's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, cc: Nordman, Cormany, Hair & Compton Attn: Laura K. McAvoy, Esq.

1 EXHIBIT 15 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. CERTIFICATE OF COMPLIANCE TO THE PURCHASE AND SALE AGREEMENT ENTERED INTO NOVEMBER 8, 1996 (PARAGRAPH 8.6 THEREOF) The undersigned certify that Berry Petroleum Company has complied with the matters set forth in Sections 8.1, 8.2, 8.3 and 8.5 of that certain Purchase and Sale Agreement by and between Berry Petroleum Company, a Delaware corporation, and Tannehill Oil Company, a California general partnership, and Boyce Resource Development Company, a California corporation; Albert G. Boyce, Jr., as Trustee of Trust "B" Under the Will of Albert G. Boyce, Sr., Deceased; William J. Boyce; Albert G. Boyce V; Mary K. Boyce; John T. Hinkle; Bettianne H. Bowen; Vernier Resources Corporation, a Texas corporation; James L. Hinkle; General Western, Inc., a New Mexico corporation; Delmar R. Archibald and Joy A. Archibald, Trustees of the Delmar R. Archibald Family Trust, dated June 22, 1982; Lisle Q. Tannehill; John W. Tannehill; Gail Kay Tannehill, as Trustee of the Gail Kay Tannehill Family Trust, dated April 9, 1996; and Thomas H. Tannehill, as partners of Tannehill Oil Company, and individually, entered into on November 8, 1996. Date: ___________________ BERRY PETROLEUM COMPANY, a Delaware corporation By: ______________________________ Jerry V. Hoffman, President and Chief Executive Officer By: _____________________________ Kenneth A. Olson, Secretary

1 EXHIBIT 16 TO THAT CERTAIN PURCHASE AND SALE AGREEMENT BY AND BETWEEN BERRY PETROLEUM COMPANY AND TANNEHILL OIL COMPANY, A CALIFORNIA GENERAL PARTNERSHIP, ET AL. FORM OF OPINION OF COUNSEL TO BERRY PETROLEUM COMPANY __________________, 1996 Tannehill Oil Company c/o Boyce Resource Management Company Attn: Mr. Albert G. Boyce, Jr. Managing General Partner 120 Manteca Avenue P.O. Box 871 Manteca, CA 95336 Re: Berry Petroleum Company / Tannehill Oil Company, Asset Purchase and Sale Transaction Gentlemen: We have acted as counsel to Berry Petroleum Company, a Delaware corporation ("Berry"), in connection with the purchase of substantially all the assets of Tannehill Oil Company, a California general partnership, and certain undivided mineral interests from individuals and entities that are partners of Tannehill Oil Company (collectively, "Tannehill"), by Berry, pursuant to that certain Purchase and Sale Agreement, dated ______________, 1996, by and between Tannehill and Berry (the "Agreement"). In rendering the opinions set forth below, we have assumed the due authorization, execution and delivery of the Agreement by Tannehill. 1. Berry is a corporation duly organized and validly existing under, and by virtue of, the laws of the State of Delaware and is in good standing under such laws. Berry has requisite corporate power to own and operate its properties and assets, and to carry on its business as presently conducted. 2. Berry has full corporate power and authority to execute and deliver the Agreement and to perform its obligations under the terms of the Agreement. 3. All corporate action on the part of Berry necessary for the authorization, execution, delivery and performance of the Agreement and the consummation of the transactions contemplated thereby, has been taken. The Agreement has been duly executed and delivered by Berry and constitutes a legal, valid and binding obligation of Berry, enforceable against it in

2 accordance with its respective terms, except as such enforceability may be limited by or subject to (a) any bankruptcy, insolvency, reorganization, moratorium or similar laws relating to creditor's rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 4. No consent, approval or authorization of or designation of Berry is required in connection with the valid execution and delivery of the Agreement by Berry, or the consummation by Berry of the transactions contemplated thereby on the Closing thereof, except as such have been obtained or made prior to or upon the date hereof. 5. To our best knowledge, there is no suit, action, arbitration, or legal, administrative, or other proceeding or governmental investigation that is material to the transactions contemplated by the Agreements pending or threatened against or affecting Berry or any of its businesses or properties or financial or other condition. We are members of the bar of the State of California, and except for our opinion set forth in Paragraph 1 above, we do not purport to be experts on, or to be qualified to express any opinion herein concerning, nor do we express any opinions herein concerning, any law other than federal law and the laws of the State of California. This opinion letter is limited to the matters expressly stated herein and no opinion or other statement may be inferred or implied beyond the matters expressly stated herein. This opinion letter is addressed to Tannehill for the benefit of Tannehill and is only for Tannehill's use in connection with the Agreement. This opinion letter may not be relied upon by any other person or entity without prior written consent. This opinion is as of this date, and we expressly decline any undertaking to advise you of any matters arising subsequent to the date hereof which would cause us to amend any portion of the foregoing in whole or in part. Very truly yours, NORDMAN, CORMANY, HAIR & COMPTON cc: Roger Coley, Esq.