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                                                                   EXHIBIT 10.07
                          NATURAL GAS SUPPLY AGREEMENT
This Agreement is effective October 1, 1998 between Conoco Inc., a Delaware
corporation, ("Conoco") and E. I. du Pont de Nemours and Company, ("DuPont"), a
Delaware corporation.
1.    SCOPE OF SERVICE
      1.1   Gas Procurement: Conoco will contract for the purchase,
            transportation and delivery of all of the natural gas supply
            requirements for DuPont's facilities listed on Exhibit A ("Plants"),
            including the negotiation, execution and management of such
            contracts. The intent will be to minimize DuPont's gas costs
            commensurate with the degree of supply security agreed between the
            parties. Any contract in excess of a one-year term will require
            DuPont's concurrence.
      1.2   Scheduling and Dispatching: Conoco will provide all dispatching
            services for gas supply to the Plants, including nomination,
            scheduling and adjustment of each Plant's daily gas supply delivered
            into the Plants' facilities. DuPont will have the right to adjust
            its quantities during the Month by notifying Conoco of such
            adjustments, and Conoco will use its best efforts to effect such
            adjustments.
      1.3   Gas Balancing: Conoco will manage and reconcile all transportation
            and supplier contracts for DuPont's gas supply, including
            maintaining accounts and records of transportation and storage of
            the gas, maintaining receipts and deliveries in compliance with the
            applicable pipeline imbalance and scheduling tolerances of the
            transporters, managing any imbalances within the period allowed for
            cure, and determining the validity of any imbalance penalty charge.
            This service will include management of that certain Natural Gas
            Transfer Agreement, dated December 12, 1991, between DuPont and
            Beaumont Methanol Corporation relating to delivery of gas at
            DuPont's Beaumont Works Plant in Jefferson County, Texas.
      1.4   Transportation Capacity: Conoco will manage any pipeline capacity
            owned by DuPont, including monitoring such capacity reallocations
            and available open access storage.
      1.5   Accounting: Conoco will provide all accounting and administrative
            services required in connection with DuPont's gas supply, including
            preparing monthly reports, verifying the accuracy of invoices,
            monitoring the telemetry readings for the Texas Plants, and
            monitoring utility banking and balancing. Conoco will also prepare
            monthly invoices for each Plant and periodic reports of gas usage
            and costs.
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      1.6   Consulting: Conoco will provide consulting services to DuPont in
            connection with state and federal regulatory requirements, analyzing
            daily, monthly and yearly supply requirements, projecting gas supply
            costs, and operating the Plants so as to minimize gas costs.
      1.7   Power of Attorney: DuPont will appoint designated personnel of
            Conoco as agents and attorneys-in-fact to exercise those powers
            necessary to perform the services described in this Contract,
            pursuant to the Power of Attorney for Natural Gas Supply attached
            hereto as Exhibit B.
2.    COMPENSATION
      2.1   DuPont will reimburse Conoco for all direct costs incurred by Conoco
            in the acquisition, transportation, storage, delivery or other
            handling of gas delivered to DuPont, including, but not limited to,
            the purchase price for the gas, transportation and distribution
            charges, reservation charges, deficiency charges, pipeline imbalance
            charges, storage and parking fees, and Taxes imposed with respect to
            the gas prior to delivery at the Plant(s).
      2.2   The parties anticipate that Conoco will acquire gas supplied to
            DuPont pursuant to this Agreement from sources other than Conoco's
            own production. However, the parties recognize that Conoco produced
            or controlled gas may from time to time be sold to DuPont at
            applicable market prices.
      2.3   DuPont will pay Conoco a Service Charge of $0.012 per mmbtu of gas
            delivered to the Texas Plants and $0.042 per mmbtu of gas delivered
            to the non-Texas Plants.
      2.4   Conoco will be entitled to receive the Fees payable by Beaumont
            Methanol Corporation under the DuPont/BMC Agreement.
3.    TERM
      3.1   This Agreement will be effective from October 1, 1998 for a primary
            term of one year, and shall continue thereafter until terminated by
            either party upon not less than 180 days written notice.
      3.2   Notwithstanding the foregoing, if either party issues a notice to
            terminate this Agreement and DuPont negotiates with a third party to
            provide all or part of the supply services contemplated under this
            Agreement, Conoco shall have the right to match such third party's
            bonafide offer; provided that Conoco matches the offer within 30
            days after written notice from DuPont providing reasonable detail of
            the terms and conditions of the third party offer.
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      3.3   During the first month following a notice of termination, Conoco
            will provide DuPont with copies of all supply and transportation
            agreements between Conoco and third parties that relate solely to
            gas supply to the Plant(s) and are in effect at the time of notice
            of termination. During the last six months of this Agreement, Conoco
            will follow DuPont's direction with regard to the continuance or
            termination of such agreements as permitted by their terms. Upon
            termination of this Agreement, DuPont agrees to receive assignment
            of any such agreements still in effect as of the termination date.
4.    COMMUNICATIONS
      4.1   No less than once per year, appropriate representatives of DuPont
            and Conoco will meet to review and agree upon the gas supply
            strategy for each Plant, including the appropriate blend of firm and
            spot supply contracts and the amount of swing required in the firm
            supply contracts, and any transportation requirements.
      4.2   No later than ten days prior to each Month, each Plant will notify
            Conoco of its anticipated gas supply requirements for the following
            Month, including its minimum and maximum daily requirements and any
            other operational information which could have a significant effect
            on the Plant's gas requirements during the Month. Conoco will
            arrange for gas supply to the Plant(s) in accordance with such
            notification and information.
      4.3   Conoco and DuPont will cooperate in communicating throughout the
            Month regarding any material changes in a Plant's gas requirements.
      4.4   Upon DuPont's request from time to time, Conoco will provide DuPont
            with reports of plant consumption volumes, weighted average cost of
            gas, published gas prices, and other industry data.
      4.5   Communications to DuPont will be directed to the appropriate
            representatives for each Plant and/or business unit, as designated
            by DuPont from time to time.
      4.6   Payments from DuPont to Conoco will be made per directions on the
            invoice. Other communications to Conoco will be directed to the
            appropriate representative as listed below. Conoco may modify these
            communication instructions at any time upon written notice.
            Manager Gas Marketing
            Natural Gas & Gas Products
            Conoco Inc.
            P. O. ▇▇▇ ▇▇▇▇    ▇▇▇▇▇▇
            ▇▇▇▇▇▇▇, ▇▇   ▇▇▇▇▇
            ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇  (▇▇▇▇▇-▇▇▇▇)
            Telephone   (▇▇▇) ▇▇▇-▇▇▇▇
            Fax: (▇▇▇) ▇▇▇-▇▇▇▇
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5.    BILLING AND PAYMENT
      5.1   Conoco shall invoice DuPont for gas delivered in the preceding Month
            and for any other applicable charges, providing supporting
            documentation acceptable in industry practice to support the amount
            charged. If the actual quantity delivered is not known by the
            billing date, billing will be prepared based on the quantity of gas
            confirmed for delivery by the Delivering Transporter. The invoiced
            quantity will then be adjusted to the actual quantity on the
            following Month's billing or as soon thereafter as actual delivery
            information is available.
      5.2   DuPont shall remit the amount due by electronic funds transfer (EFT)
            initiated on or before 10 days after receipt of Conoco's invoice;
            provided that if the tenth day is not a Business Day, the EFT shall
            be initiated on or before the next Business Day. If DuPont fails to
            remit the full amount payable by it when due, interest on the unpaid
            portion shall accrue at a rate equal to the lower of (i) the
            then-effective prime rate of interest published under "Money Rates"
            by The Wall Street Journal, plus two percent per annum from the date
            due until the date of payment; or (ii) the maximum applicable lawful
            interest rate. If DuPont, in good faith, disputes the amount of any
            such statement or any part thereof, DuPont will pay to Conoco such
            amount as DuPont concedes to be correct against Conoco's invoice for
            that amount; provided, however, if DuPont disputes the amount due,
            DuPont must provide supporting documentation acceptable in industry
            practice to support the amount paid or disputed.
      5.3   Any party shall have the right, at its own expense, upon reasonable
            notice and at reasonable times, to examine the books and records of
            the other party to the extent reasonably necessary to verify the
            accuracy of any statement, charge, payment, or computation made
            under the Agreement. This examination right shall not be available
            with respect to proprietary information not directly relevant to
            transactions under this Agreement. All invoices and ▇▇▇▇▇▇▇▇ shall
            be conclusively presumed final and accurate unless objected to in
            writing, with adequate explanation and/or documentation, within two
            years after the Month of gas delivery. All retroactive adjustments
            shall be paid in full by the party owing payment within 30 days of
            notice and substantiation of such inaccuracy.
6.    QUALITY AND MEASUREMENT
            All gas supplied by Conoco shall meet the quality and heat content
            requirements of the Delivering Transporters. The unit of quantity
            measurement for purposes
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            of this Agreement shall be one mmbtu dry. Measurement of gas
            quantities hereunder shall be in accordance with the established
            procedures of the Delivering Transporter.
7.    TAXES
            DuPont shall pay or cause to be paid all Taxes on or with respect to
            the gas upon and after delivery at the Plant(s). If Conoco is
            required to remit or pay Taxes that are DuPont's responsibility
            hereunder, DuPont shall reimburse Conoco for such Taxes in
            accordance with Article 5. If any Plant is entitled to an exemption
            from any such Taxes or charges, DuPont shall furnish the Conoco any
            necessary documentation thereof.
8.    TITLE, WARRANTY AND INDEMNITY
      8.1   Except for gas acquired by Conoco as agent for DuPont, title to gas
            delivered to DuPont shall pass from Conoco to DuPont at the inlet
            flange of DuPont's facilities at the Plants. Conoco shall have
            responsibility for and assume any liability with respect to the gas
            prior to its delivery to DuPont at the Plants. Conoco shall have no
            responsibility for and no liability with respect to said gas after
            its delivery to DuPont at the Plants.
      8.2   Conoco warrants that it will have the right to convey and will
            transfer good and merchantable title to all gas delivered by it to
            DuPont free and clear of all liens, encumbrances, and claims.
      8.3   Conoco agrees to indemnify DuPont and save it harmless from all
            losses, liabilities or claims, including attorney's fees and costs
            of court ("Claims") from any or all persons, arising from or out of
            claims of title, personal injury or property damage from the gas or
            other charges thereon which attach before title passes to DuPont,
            except to the extent that any such Claim, injury, or damage is
            caused by the negligence, willful misconduct or breach of this
            Agreement by DuPont. DuPont agrees to indemnify Conoco and save it
            harmless from all Claims from any or all persons arising from or out
            of claims regarding payment, personal injury or property damage from
            said gas or other charges thereon which attach after title passes to
            DuPont, except to the extent that any such Claim, injury, or damage
            is caused by the negligence, willful misconduct or breach of this
            Agreement by Conoco.
9.    FORCE MAJEURE
      9.1   Neither party shall be liable to the other for failure to perform an
            obligation under this Agreement to the extent such failure was
            caused by Force Majeure; provided that a Force Majeure will excuse a
            delay in making payment due hereunder, but not the underlying
            obligation to pay. The term "Force Majeure" as employed herein means
            any cause not
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            reasonably within the control of the party claiming suspension, as
            further defined in Section 9.2.
      9.2   Force Majeure shall include but not be limited to the following: (i)
            physical events such as acts of God, landslides, lightning,
            earthquakes, fires, storms or storm warnings such as hurricanes
            which result in evacuation of the affected area, floods, washouts,
            explosions, breakage or accident or necessity of repairs to
            machinery or equipment or lines of pipe; (ii) weather related events
            affecting an entire geographic region, such as low temperatures
            which cause freezing or failure of ▇▇▇▇▇ or lines of pipe; (iii)
            interruption of firm transportation and/or storage by transporters;
            (iv) acts of others such as strikes, riots, sabotage, insurrections
            or wars; and (v) governmental actions such as necessity for
            compliance with any court order, law, statute, ordinance, or
            regulation promulgated by a governmental authority having
            jurisdiction. Each party shall make reasonable efforts to avoid the
            adverse impacts of a Force Majeure and to resolve the event or
            occurrence once it has occurred in order to resume performance.
      9.3   Neither party shall be entitled to the benefit of the provisions of
            Force Majeure to the extent the party claiming excuse failed to
            remedy the condition and to resume the performance of such covenants
            or obligations with reasonable dispatch.
      9.4   Notwithstanding anything to the contrary herein, the parties agree
            that the settlement of strikes, lockouts or other industrial
            disturbances shall be entirely within the sole discretion of the
            party experiencing such disturbance.
      9.5   The party whose performance is prevented by Force Majeure must
            provide notice to the other party. Initial notice may be given
            orally; however, written notification with reasonably full
            particulars of the event or occurrence is required as soon as
            reasonably possible. Upon providing written notification of Force
            Majeure to the other party, the affected party will be relieved of
            its obligation to the extent and for the duration of the Force
            Majeure, and neither party shall be deemed to have failed in such
            obligations to the other during such occurrence or event.
10.   MISCELLANEOUS
      10.1  Confidentiality. DuPont and Conoco agree to maintain the
            confidentiality of this Agreement and all information acquired in
            the performance of the Agreement relating to the activities or
            operations of the other party. DuPont and Conoco each agree not to
            divulge any such information to any third party without the express
            written consent of the other party, except as required by law.
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      10.2  Assignment. This Agreement shall be binding upon the successors,
            assigns, personal representatives and heirs of the respective
            parties hereto, and the covenants, conditions, rights and
            obligations of this Agreement shall run for the full term of this
            Agreement. No assignment of this Agreement, in whole or in part,
            will be made without the prior written consent of the non-assigning
            party, which consent will not be unreasonably withheld or delayed;
            provided, either party may transfer its interest to any parent or
            affiliate by assignment, merger or otherwise without the prior
            approval of the other party. Upon any transfer and assumption, the
            transferor shall not be relieved of or discharged from any
            obligations hereunder.
      10.3  Severability. If any provision in this Agreement is determined to be
            invalid, void or unenforceable by any court having jurisdiction,
            such determination shall not invalidate, void, or make unenforceable
            any other provision, agreement or covenant of this Agreement.
      10.4  Waiver. No waiver of any breach of this Agreement shall be held to
            be a waiver of any other or subsequent breach.
      10.5  Entire Agreement. This Agreement sets forth all understandings
            between the parties respecting the subject matter hereof, and any
            prior contracts, understandings and representations, whether oral or
            written, relating to such transactions are replaced and superseded
            by this Agreement. This Agreement may be amended only by a writing
            executed by both parties.
      10.6  Laws and Regulation. This Agreement and all provisions herein will
            be subject to all applicable and valid statutes, rules, orders and
            regulations of any Federal, State, or local governmental authority
            having jurisdiction over the parties, their facilities, gas supply,
            this Agreement or any provisions thereof.
      10.7  No Third Party Beneficiary. There is no third party beneficiary to
            this Agreement.
      10.8  Further Assurances. The parties agree to execute and deliver from
            time to time such further instruments and do such other acts as may
            be reasonably necessary to effectuate the purposes of this
            Agreement.
11.   DEFINITIONS
            "BUSINESS DAY" shall mean any day except Saturday, Sunday or Federal
            Reserve Bank holidays.
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            "CONOCO" shall mean Conoco Inc., a Delaware corporation, issued
            Charter No. 523126 by the Secretary of State of the state of
            Delaware, with primary offices in Houston, Texas.
            "DELIVERING TRANSPORTER" shall mean any Transporter delivering gas
            into a Plant's facilities, except that for the Texas Plants,
            Delivering Transporter shall mean the Transporter delivering gas to
            Longhorn Pipeline Company.
            "DUPONT/BMC AGREEMENT" shall mean that certain Natural Gas Transfer
            Agreement dated December 12, 1991, between DuPont and Beaumont
            Methanol Corporation, relative to the receipt and delivery of gas at
            DuPont's Beaumont Plant, located in Jefferson County, Texas.
            "MMBTU" shall mean 1,000,000 British thermal units.
            "PLANT(S)" shall mean the DuPont owned and operated facilities
            listed on Exhibit A.
            "MONTH" shall mean a calendar month.
            "TAXES" shall mean all taxes, fees, levies, penalties, licenses or
            charges imposed by any governmental authority.
As evidence of the parties' agreement to the terms and conditions of this
Agreement, the appropriate representative of each party has executed this
Agreement in the spaces provided below.
E. I. DU PONT DE NEMOURS AND COMPANY
By:
       ---------------------------------
Name:         ▇▇▇▇▇ ▇. ▇▇▇▇▇▇
Title: Director Global Sourcing,
       Raw Materials, Energy & Packaging
Date:
       ---------------------------------
CONOCO INC.
By:
       ---------------------------------
Name:         R. E. ▇▇▇▇▇▇▇▇
Title: General Manager - Natural Gas
Date:
       ---------------------------------
Signature page to that certain Natural Gas Supply Agreement, dated October 1,
1998 between Conoco Inc. and E. I. du Pont de Nemours and Company.
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                                    EXHIBIT A
                                       TO
                          NATURAL GAS SUPPLY AGREEMENT
                                 OCTOBER 1, 1998
                                     PLANTS
                          (CITY, COUNTY/PARISH, STATE)
          TEXAS                                NON-TEXAS EAST                            NON-TEXAS WEST
          -----                                --------------                            --------------
                                                                         
Beaumont, Jefferson               Athens, ▇▇▇▇▇▇, GA                           Antioch, Contra Costa, CA
Corpus Christi, San ▇▇▇▇▇▇▇▇      ▇▇▇▇▇▇ Mill Plaza, Wilmington, DE            Axis, Mobile, AL
Deer Park, ▇▇▇▇▇▇ (4)             Belle, Kanawha, WV (3)                       ▇▇▇▇▇▇▇▇, Ascension Parish, LA
La Porte, ▇▇▇▇▇▇                  Cedar Creek, Cumberland, NC (1)              De Lisle, Harrison, ▇▇
▇▇ ▇▇▇▇▇ (▇▇▇▇▇), ▇▇▇▇▇▇          ▇▇▇▇▇▇▇▇ Works, Salem, NJ                    East Chicago, ▇▇▇▇, IN
Sabine, Orange                    Chattanooga, ▇▇▇▇▇▇▇▇, TN                    El Paso, Woodford, IL
Victoria, Victoria                Circleville, Pickaway, OH                    Flint, Genesee, MI
                                  Edge Moor, New Castle, DE                    Ft. Madison, Lee, IA
                                  Experimental Station, Wilmington, DE         Louisville, Jefferson, KY (2)
                                  ▇▇▇▇▇▇▇▇, Florence, SC                       Memphis, Shelby, TN (1)(2)
                                  Front Royal, ▇▇▇▇▇▇, VA                      Montague, Muskegon, MI
                                  Hopewell, Prince ▇▇▇▇▇▇, VA (1)              Mt. ▇▇▇▇▇▇▇, Macomb, MI
                                  Kinston, Lenoir, NC                          Pontchartrain, St.▇▇▇▇ Baptist Parish, LA
                                  Martinsville, ▇▇▇▇▇, VA                      Troy, Oakland, MI
                                  May, Kershaw, SC
                                  New Johnsonville, ▇▇▇▇▇▇▇▇▇, TN
                                  Niagara Falls, Niagara, NY
                                  Old Hickory, ▇▇▇▇▇▇, TN
                                  Parkersburg, Wood, WV
                                  Repauno, Gloucester, NJ
                                  Research Triangle, Durham, NC
                                  Rochester, Monroe, NY
                                  Seaford, Sussex, ▇▇
                                  ▇▇▇▇▇▇▇▇, Chesterfield, VA
                                  ▇▇▇▇▇-▇▇▇▇▇▇▇ Research Center, Newark, DE
                                  Toledo, Lucas, OH
                                  Towanda, Bradford, PA
                                  Waynesboro, Augusta, VA
                                  Yerkes, Niagara, NY
Notes:
(1)   Includes ICI plants located in the same city.
(2)   Includes Protein Technology, Inc. Plants located in the same city.
(3)   Includes Praxair Plant also located in the same city.
(4)   DuPont Acetylene Plant located within the Rohm & ▇▇▇▇ facility at Deer
      Park.
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                                    EXHIBIT B
                    POWER OF ATTORNEY FOR NATURAL GAS SUPPLY
E. I. du Pont de Nemours and Company (DuPont), a Delaware corporation with
principal offices in Wilmington, Delaware, hereby appoints certain designated
personnel of Conoco Inc., formerly Continental Oil Company, (Conoco), a Delaware
corporation identified by Charter No. 523126 with principal offices in Houston,
Texas, as DuPont's true and lawful agents and attorneys-in-fact to exercise the
powers listed below in DuPont's name and place, all in support of Conoco's
natural gas supply service to DuPont.
1.    Designated Powers:
      1.1  To negotiate and execute any contracts for the purchase, sale,
      exchange, storage or transportation of natural gas.
      1.2  To amend, extend, renew or cancel any contracts relating to natural
      gas.
      1.3  To do all other things and perform all other acts as may be
      necessary, appropriate or convenient for the purchase, acquisition, use or
      consumption of natural gas by or on behalf of DuPont, including the
      transportation, storage and delivery of natural gas.
      1.4  To tender, pay, demand, collect, receive or accept all sums of money
      due or payable under or arising from any contract for the purchase, sale,
      exchange, storage or transportation of natural gas.
      1.5  To do or perform any act or thing necessary, appropriate or
      convenient concerning any ruling or regulation by any court, agency or
      governmental entity in relation to or in connection with any of the
      matters herein.
2.    Designated Personnel:
The following personnel of Conoco Natural Gas & Gas Products business unit, and
their successors and assigns, are designated DuPont's agents by this power of
attorney: Vice President and General Manager, Manager Gas Marketing, and
Director Gas Marketing.
3.    Adoption and Ratification:
DuPont hereby declares that each and every thing done, acts performed, and
instrument executed and delivered by its said agents and attorneys-in-fact in
connection with the exercise of any the powers designated above shall be good,
valid and effectual to all intents and purposes as if the same had been done,
performed,
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executed or delivered by DuPont in its corporate presence; and DuPont
hereby ratifies whatsoever said agents and attorneys-in-fact shall lawfully do
by virtue hereof.
4.    Term
This power of attorney shall be valid as of October 1, 1998 for a primary term
of one year, unless extended by written notice from DuPont.
                                E. I. DU PONT DE NEMOURS AND COMPANY
                                By:
                                   --------------------------------------------
                                      ▇▇▇▇▇ ▇. ▇▇▇▇▇▇
                                      Director Global Sourcing,
                                      Raw Materials, Energy & Packaging
ATTEST:
--------------------------------
      Assistant Secretary
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