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                                                                    EXHIBIT 10.5

                                   TERM SHEET
                 ERBU PROPERTY DISPOSITION AND SUPPLY COMMITMENT


1.       All Oil and Gas Properties currently owned by Pennzoil Products 
         Company ("Products") in Michigan, New York, Ohio, Pennsylvania and West
         Virginia (the "Eastern Properties") shall be transferred to Pennzoil
         Exploration and Production Company ("E&P") effective April 13, 1998.
         The term "Oil and Gas Properties" shall include all (a) oil, gas and
         mineral fee and leasehold interests (including royalty and overiding
         royalty interests); (b) related or adjoining surface fee, leasehold and
         associated surface interests; (c) related personal property and
         fixtures thereon or associated therewith; and (d) all rights and
         obligations under all contracts associated therewith.

2.       All Oil and Gas Property currently owned by Pennzoil Company
         ("Pennzoil") in the Bluebell - Altamont Field, Utah (the "Western
         Properties") shall continue to be owned by Pennzoil Company.

3.       E&P (which shall be defined, for purposes hereafter, to include
         Pennzoil unless otherwise stated) will enter into a contractual
         arrangement with Products granting Products the preferential right (but
         not the obligation) to purchase on a month-to-month basis, at market
         prices, up to one hundred percent (100%) of the crude oil produced and
         saved attributable to E&P's interests in the Eastern and Western
         Properties (the "Committed Crude"). Product's preferential right to
         purchase shall extend until October 1, 2017 in the case of the Eastern
         Properties, and until March 1, 2010 in the case of the Western
         Properties. Throughout the term of Product's preferential right to
         purchase, E&P shall have the right to solicit and/or entertain written
         offers from purchasers other than Products ("third parties") for the
         purchase of all or any portion of the Committed Crude. If E&P receives
         a third party offer to purchase or exchange Committed Crude that it
         wishes to accept, it shall notify Products in writing of such offer at
         least fifteen (15) working days prior to the beginning of the calendar
         month in which such third party purchase is to commence. Products shall
         advise E&P within five (5) working days of its receipt of such

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     notification whether or not it elects to match all substantive terms and
     conditions of the third party offer. If Products does not elect to match
     all substantive terms and conditions of the third party offer, E&P may
     accept the third party offer for the full term contemplated and the crude
     subject to the third party offer shall no longer be considered Committed
     Crude.

4.   Throughout the term of Products' preferential right to purchase, in the
     event E&P elects to sell, exchange or otherwise assign to a third party all
     or any portion of E&P's interest in any of the wells producing Committed
     Crude, E&P shall, within ten (10) working days after reaching agreement
     with the third party purchaser on the terms of such sale, exchange or
     assignment, notify Products in writing of such election, with full
     information concerning the proposed sale, exchange or assignment, which
     shall include the name and address of the third party (who must be ready,
     willing and able to purchase, exchange or take assignment), the purchase,
     exchange or assignment price, and all other terms of the offer. Products
     shall advise E&P within twenty (20) working days of Products' receipt of
     such notification whether or not it elects to match all substantive terms
     and conditions of such sale, exchange or assignment. If Products does not
     elect to match all substantive terms and conditions of such sale, exchange
     or assignment, E&P may accept such sale, exchange or assignment. Such sale,
     exchange or assignment shall be free and clear of pre-existing contractual
     commitments between Products and E&P.

5.   Ninety (90) days prior to the end of each calendar year, E&P shall provide
     Products with a development plan for the Eastern Properties and the Western
     Properties showing planned recompletions and well abandonments for the
     upcoming calendar year. For a period of thirty (30) days following the
     receipt of the development plan, Products may elect to cause E&P to refrain
     from implementing any or all of the planned recompletions and well
     abandonments identified in the development plan. If Products so elects,
     then E&P shall have the right:

               (a) to continue to operate any such well at Products' expense. If
          E&P exercises this option, Products shall, beginning on the first day
          of the calendar
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       year covered by the development plan, reimburse E&P for (a) the direct
       expense (as described in Section II of the "Accounting Procedures Joint
       Operations" 1984 COPAS-ONSHORE) of operating the well, and (b) fixed
       overhead charges $300.00 (normal operations) and $3,000.00 (rig
       operations) for Eastern Property wells and $1,500.00 per month (normal
       operations) and $15,000.00 per month (rig operations) for Western
       Property wells. Fixed overhead charges shall be adjusted annually to
       reflect changes in the Producer Price Index. Products shall be entitled
       to all revenues (net of royalty and severance taxes) attributable to
       wells for which Products has assumed cost responsibility pursuant to this
       paragraph. Once Products agrees to abandon the zones producing in a well
       at the time operations were commenced on Products' behalf, such well
       shall be returned to E&P; or

          (b) to assign any such well to Products for operation by Products or
       by a third party on Products' behalf; or

          (c) withdraw its proposal to abandon or recomplete.

6.     Products may elect to cause E&P to drill additional wells for the
       production of Committed Crude by agreeing to fund all development costs
       associated with such wells. On or before January 1 of each calendar year,
       Products shall notify E&P of its desire to fund the drilling of new wells
       (including associated pipelines, processing and support facilities) for
       the production of Committed Crude. Within sixty (60) days following the
       receipt of such an election, E&P shall furnish Products with a
       recommended drilling plan consisting of a list of recommended drilling
       locations, relevant technical information supporting such recommendations
       and AFE's providing estimates for the proposed work. Within thirty (30)
       days of its receipt of the recommended drilling plan, Products shall make
       a final selection of the wells it desires to have drilled during the
       remainder of the calendar year. E&P may elect to drill any of the
       proposed wells for its own account. Products shall fund all capital
       expenditures on the proposed wells (including associated pipelines,
       processing and support activities) which E&P elects not to drill for its
       own account (the "Joint
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     Wells") and will receive one hundred percent (100%) of all revenues (net of
     royalty and severance taxes) attributable to each of the Joint Wells until
     "payout," which will occur when Products has recovered all of its capital
     expenditures attributable to such well plus a return on its investment
     calculated at the six-month LIBOR rate plus one percent (1%). Until payout,
     Products shall bear all of the direct operating expenses attributable to
     the Joint Wells (calculated as described in paragraph 6 above) plus monthly
     fixed overhead charges of $300.00 (normal operations) and $3,000.00 (rig
     operations) for Eastern Property Joint Wells and $1,500.00 (normal
     operations) and $15,000.00 (rig operations) for Western Property Joint
     Wells. Fixed overhead charges shall be adjusted annually to reflect changes
     in the Producer Price Index. Products also shall bear all costs incurred
     prior to payout for the plugging and abandonment of any wells drilled
     pursuant to this paragraph. Products' obligation to bear costs and expenses
     hereunder shall apply to all costs and expenses incurred, notwithstanding
     the fact that such costs and expenses may exceed the estimates provided for
     in any AFE. Following "payout," E&P shall bear all costs, and shall receive
     all revenues, associated with the Joint Wells.

7.   At any time after the second anniversary of a spin-off of Products from
     Pennzoil Company, and until October 1, 2017 in the case of the Eastern
     Properties, and until March 1, 2010 in the case of the Western Properties,
     Products shall have the right to purchase the entirety of E&P's interest
     in either the Eastern Properties or the Western Properties, or in both the
     Eastern and Western Properties, including: (a) oil, gas and mineral fee
     and leasehold interests (including royalty and overriding royalty
     interests); (b) related or adjoining surface fee, leasehold and associated
     surface interests; (c) related personal property and fixtures thereon or
     associated therewith; and (d) all rights and obligations under all
     contracts associated therewith. Within five (5) working days of the giving
     of notice to make such a purchase by Products, the parties shall each name
     a qualified independent appraiser, and such two named appraisers shall
     choose a third independent appraiser, who shall each submit an appraisal of
     the fair market value of the properties to be purchased. After receiving
     such appraisals, in the event Products wishes to proceed with such
     purchase, Products shall pay to E&P the higher of (i) the average of the
     three independent appraisals of
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   the properties, or (ii) the net book value (book value adjusted for DD&A plus
   capital and other investments) of the properties at the purchase date, plus
   the amount of any book value write-down(s) required by generally accepted
   accounting practices taken subsequent to the date of this Agreement and prior
   to the receipt by E&P of Products' notice to make such purchase.

8. The transfer described in paragraph 1 above shall be executed on or before
   April 13, 1998. All other provisions of this term sheet shall, in substance,
   be embodied in a separate definitive agreement between the parties which,
   when executed, shall be made effective as of the date of the transfer
   described in paragraph 1 above.

9. Nothing in this Term Sheet shall prevent E&P from complying fully with all
   applicable rules, regulations and other legal requirements relating to the
   production of oil, gas and minerals from the Easter and Western Properties
   and to the payment of royalties thereon.