ENRON Capital & Trade Resources CONFIRMATION OF AN OPTION (CALL) Date: April 03, 1996 To: Inland Resources Inc. ("Counterparty") Attention: Bill Pennington From: Enron Capital & Trade Resources Corp. ("ECT") Re: Commodity Option Contract No.: ECT Contract No. e31409.1 The purpose of this letter agreement (together with the General Terms and Conditions of Confirmation as set forth in Annex A and any other attachments hereto, collectively the (Confirmation") is to confirm the terms and conditions of the transaction entered into between us on the Trade Date specified below (the "Transaction") pursuant to a telephone conversation between Bill Pennington and Fred Lagrasta whereby we accepted your offer to enter into the Transaction. The terms of the particular Transaction to which this Confirmation relates are as follows: General Terms for Call: Trade Date: April 03, 1996 Commodity: Crude Oil Commodity Unit: Barrels (BBL) (42 U.S. Gallons) Option Type: Call Option Seller: ECT Buyer: Counterparty Total Premium: U.S. Dollars $86,400.00 due ECT Premium Payment Date(s): April 5, 1996 Automatic Exercise: Applicable Exercise Period: Inapplicable 1 Written Confirmation: Inapplicable Transaction Terms: Notional Quantity Per Determination Period: 12,000 Barrels per month Effective Date: July 01, 1996 Termination Date: December 31, 1996 Determination Period(s): Each calendar month beginning with July 01, 1996 and ending on December 31, 1996. The end date for each Determination Period shall be the last day of each such calendar month. Strike Price: US Dollars $18.20000 per Barrel Floating Price: The average of the daily settlement prices for the prompt month of the YMEX Light Sweet Crude Oil Futures Contract for each NYMEX Trading Day of the Determination Period. Strike Price Differential: A price per Commodity Unit equal to the excess (if a positive number) of (i)the Floating Price over (ii) the Strike Price. Cash Settlement Amount: For each relevant Determination Period, an amount (if any) equal to the product of (i) the Notional Quantity per Determination Period multiplied by (ii)the Strike Price Differential, which amount shall be due and payable on the application Payment Date for such Determination Period (if for any Determination Period the Floating Price is equal to or less than the Strike Price, then no payment shall be due with respect to such determination Period.) Payment Date(s): The fifth Business Day after the Floating Price is determinable. Contractual Currency: US Dollars Governing Law: Texas 2 General Terms and Conditions of Confirmations: The general terms and conditions contained in Annex A attached hereto and made a part here of apply and are incorporated herein by reference. Credit or Other Special Provisions: Inapplicable. For the purposes of the calculations of the Floating Price (s), all numbers shall be rounded as follows: Floating Price (s) relating to commodities quoted in (i) gallons shall be rounded to five places, (ii) MMBtu s shall be rounded to four places and (iii) barrels shall be rounded to three places. If the number after the final number is five (5) or greater then the final number shall be increased by one (1), and if the number after the final number is less than five (5) then the final number shall remain unchanged. This confirmation is a complete and binding agreement between you and us as to the Transaction. Until a master Agreement is executed by you and us, all currently existing swap, option or other financially settled derivative transactions between the parties shall be governed by the terms and conditions set forth in any Annex attached hereto. All such swap, option or other financially-settled derivative transactions, shall constitute single integrated agreement between you and us, it being acknowledged that the parties are relying upon the fact that all such swap, option or other financially-settled derivative transactions will form a single agreement and the parties would not otherwise enter into any transactions. The terms and conditions contained in any Annex attached hereto are incorporated into this Confirmation, and in the event of any inconsistency between any Annex and this letter agreement, this letter agreement shall govern. Upon execution by you and us of a Master Agreement, this confirmation will supplement, form a part of, and be subject to the Master Agreement. In the event of any inconsistency between the Confirmation and the Master Agreement, the Master Agreement shall govern except as expressly set forth there in. If this confirmation correctly sets forth the terms of the Transaction that we have entered into, please promptly confirm in a reply to us by signing below and sending this Confirmation (or a copy hereof) to us (or notifying us of any bona fide error that would require revision in order to accurately reflect our agreement on the Transaction) by facsimile transmission within two Business Days after your receipt of this confirmation. If you fail to so reply within such time period, the terms hereof will constitute binding and conclusive evidence of the Transaction. We look forward to receiving your prompt reply. 3 Sincerely, Enron Capital & Trade Resources Corp. Inland Resources Inc. By: ______________________ By: ______________________ Name: ____________________ Name: ____________________ Title: ___________________ Title: _____________________ Date: ____________________ Date: _____________________ COUNTERPARTY: AFTER YOU HAVE CONFIRMED TRANSACTION, PLEASE RETURN TO ECT, ATTENTION: DIRECTOR OF DOCUMENTATION AT FAX NO. (713) 646-4816 4