ANHYDROUS AMMONIA SALES AGREEMENT         Exhibit 10.1

     ****INDICATES INFORMATION IN THIS DOCUMENT WHICH HAS BEEN
OMITTED FROM THIS PUBLIC FILING PURSUANT TO A REQUEST BY THE
COMPANY FOR CONFIDENTIAL TREATMENT BY THE SECURITIES AND EXCHANGE
COMMISSION.  THE OMITTED INFORMATION HAS BEEN FILED SEPARATELY
WITH THE SECRETARY OF THE SECURITIES AND EXCHANGE COMMISSION FOR
PURPOSES OF SUCH REQUEST.

     THIS AGREEMENT is entered into as of the 28th day of May,
1997, to be effective January 1, 1997, between KOCH NITROGEN
COMPANY, a Nebraska corporation, with principal offices at 4111
East 37th Street North, Wichita, Kansas 67220 (herein called
"Koch") and EL DORADO CHEMICAL COMPANY, an Oklahoma corporation,
with principal offices at 16 S. Pennsylvania, Oklahoma City,
Oklahoma 73107 (herein called"Buyer");

     WITNESSETH:  

     WHEREAS, as specified in this Agreement, Buyer and Koch
desire to enter into an anhydrous ammonia sales agreement under
which Koch agrees to supply to Buyer and Buyer agrees to take and
pay for, or to pay for if not taken, a Required Yearly Quantity
of anhydrous ammonia; and

     WHEREAS, as specified in this Agreement, Buyer will take
delivery of such Required Yearly Quantity in approximately equal
monthly quantities throughout the term of this Agreement; and

     WHEREAS, as specified in this Agreement, Koch shall charge
Buyer a price for each Ton to be taken or paid for hereunder
based upon the pricing formula set out in this Agreement; and

     WHEREAS, as specified in this Agreement, Buyer shall be
responsible for all taxes related to such quantities of anhydrous
ammonia and for all transportation charges beyond the Delivery
Point hereunder; and

     WHEREAS, the parties desire to state their agreements in
writing:  

     NOW THEREFORE, in consideration of the mutual promises
herein contained, the receipt and sufficiency of which is hereby
acknowledged, the parties hereto agree as follows:

I.   DEFINITIONS

     Whenever used in this Agreement, the following terms shall
have the following respective meanings:  

     A.   "Agreement" shall mean this Anhydrous Ammonia Sales
          Agreement between Koch and Buyer.

     B.   "Ammonia Pipeline Transportation Charge" shall mean
          Koch's actual Product pipeline transportation cost from
          Koch's Sterlington, Louisiana ammonia production
          facility to the pipeline Delivery Point.  

     C.   "Contract Price" shall mean the price stated in Article
          VI, Section A.  

     D.   "Contract Year" shall mean: (i) each of the three (3)
          twelve (12) Month periods during the term hereof, the
          first of which shall begin on the Effective Date and
          shall end on December 31, 1997 and the following two
          (2) twelve ( 12) month periods until December 31, 1999
          and (ii) the four (4) month period from January 1, 2000
          to April 30, 2000.

     E.   "Conversion Factor" shall mean ****

     F.   "Deficiency Volumes" shall mean the definition stated
          in Article III, Section B.

     G.   "Delivery Point" shall mean (i) for pipeline
          deliveries, the discharge side of the Product meter
          owned by Koch Pipeline Company, L.P. at Buyer's El
          Dorado, Arkansas chemical production facility, or (ii)
          for rail or trucking deliveries, the point at Buyer's
          facility where the truck or rail cars come to rest, or
          (iii) another delivery point along Koch Pipeline
          Company, L.P.'s ammonia pipeline, provided Buyer gives
          Koch at least forty-five (45) days written notice prior
          to the date it wishes to begin delivery at such
          alternate delivery point.

     H.   "Effective Date" shall mean January 1, 1997.

     I.   "Fixed Charge" shall mean ****

     J.   "Gas Price" shall mean (MMBTU Price + Transportation
          Charge) multiplied by the Conversion Factor.

     K.   "Koch Facility" shall mean Koch's anhydrous ammonia
          production facility at Sterlington, Louisiana.

     L.   "Maximum Take Quantity" shall mean the definition
          stated in Article VII, Section A.

     M.   "Minimum Take Quantity" shall mean the definition
          stated in Article VII, Section A.

     N.   "MMBTU Price" shall mean the "Henry Hub" Index price in
          MMBTU's reported under the table entitled "Market
          Center Spot-Gas Prices" in the first issue of Inside
          FERC's Gas Market Report for the Month of delivery. If
          Inside FERC's Gas Market Report and/or the "Henry Hub"
          Index price are no longer published, the parties shall
          meet within 30 days of the date such publication ceases
          to determine a new publication and/or index.

     O.   "Month" shall mean a calendar month.

     P.   "Monthly Quantity" for any given Month during the term
          of this Agreement shall mean 10,000 Tons/Month.

     Q.   "Product" shall mean commercial anhydrous ammonia
          having the following specifications:

               Ammonia (NH3) Content:   99.5% by weight minimum
               Oil:                5 ppm maximum by weight
               Water:              0.2% by weight minimum; 0.5%
                                   by weight maximum
               Inerts:                  0.5 cc per gram maximum

     R.   "PPI" shall mean the Producer Price Index for Chemicals
          and Allied Products published by the United States
          Department of Labor.

     S.   "Required Yearly Quantity" shall mean one hundred
          twenty thousand (120,000) Tons per Contract Year,
          except for the four (4) Month period from January 1,
          2000 to April 30, 2000 where it shall be defined as
          forty thousand (40,000) Tons per Contract Year.

     T.   "Taxes" shall mean the definition set forth in Article
          VIII, Section A.

     U.   "Ton" shall mean a short ton of two thousand (2,000)
          pounds avoirdupois.

     V.   "Transportation Charge" shall mean Koch's actual
          natural gas transportation charge, including fuel, from
          Henry Hub to Koch's Sterlington, Louisiana ammonia
          facility, which as of the Effective Date of this
          Agreement is ****, subject to adjustments under
          Article Vl, Section B, below.

     W.   "Weighted Average Monthly Gas Price" shall mean (i) the
          sum of the (Gas Price x Tons of Product actually taken
          by Buyer) for each Month of the subject Contract Year
          divided by (ii) the total Tons of Product actually
          taken by Buyer during the subject Contract Year,
          provided if Buyer fails to take any Product during a
          Contract Year, the total amount taken during each Month
          shall be deemed to be the Monthly Quantity and the
          total amount take during the Contract Year shall be
          deemed to be the Required Yearly Quantity.

     X.   "Yearly Contract Price" shall mean the price per Ton of
          Product equal to the sum of (i) the Weighted Average
          Monthly Gas Price, plus (ii) the Fixed Charge, for the
          applicable Contract Year.  

II.  TERM

     This Agreement shall continue and remain in full force and
effect for a term of forty (40) Months commencing on the
Effective Date and ending April 30, 2000.

III. QUANTITY TO BE SOLD AND PURCHASED

     A.   Purchase Obligation. Subject to Article III, Section B,
          Article VII, Section A and Article IX below, during
          each Contract Year, Koch agrees to sell and deliver to
          Buyer and Buyer agrees to take and pay for, or pay Koch
          the Contract Price if not taken, the Required Yearly
          Quantity of Product. If during any Month of a
          particular Contract Year, Koch fails to deliver the
          volume of Product requested by Buyer for such Month, up
          to the Maximum Take Quantity, and such failure to
          deliver is not otherwise excused by another provision
          of this Agreement, Buyer's Required Yearly Quantity for
          the Contract Year shall be reduced by the quantity of
          Product Koch failed to deliver during such Contract
          Year.  In addition, if for two (2) consecutive Months
          during the term of this Agreement, Koch fails to
          deliver a minimum of eighty percent (80%) of the
          Product volumes requested by Buyer for the particular
          Months (up to the Maximum Take Quantity), for any
          reason other than a Force Majeure event or for an event
          where Koch's performance is excused hereunder, then
          Buyer shall have the right to terminate this Agreement
          by providing Koch written notice within ten (10) days
          of the end of the second Month where Koch failed to
          provide at least eighty percent (80%) of Buyer's
          requested Product volumes.  

     B.   Make-up Rights.  Subject to Article VII, Section B
          below, if during any Contract Year Buyer fails to take
          the Required Yearly Quantity (the difference between
          the Required Yearly Quantity and the quantity actually
          taken shall be referred to hereafter as the "Deficiency
          Volumes"), Buyer shall have the right to take delivery
          of the Deficiency Volumes during the twenty-four (24)
          months following the Contract Year it failed to take
          such Deficiency Volumes, including after the term of
          this Agreement expires. Buyer's take of any Deficiency
          Volumes shall be in addition to its take obligations of
          the Required Yearly Quantity for the subject Contract
          Year. If Buyer elects to take delivery of Deficiency
          Volumes during the twenty-four (24) Months following
          the Contract Year it failed to take the Deficiency
          Volumes, in addition to the Yearly Contract Price paid
          in the Contract Year it failed to take the Deficiency
          Volumes, Buyer shall pay Koch the product of the (i)
          difference between the Contract Price for the Month
          Buyer actually takes delivery of Deficiency Volumes and
          the Yearly Contract Price paid by Buyer in the Contract
          Year it failed to take the Deficiency Volumes
          multiplied by (ii) the Tons of Deficiency Volumes
          actually taken in the subject Month of the following
          Contract Year. If Buyer elects to take Deficiency
          Volumes after this Agreement's term expires, Buyer
          shall pay Koch, in addition to the Yearly Contract
          Price paid in the Contract Year it failed to take the
          Deficiency Volumes, the product of (i) the difference
          between the Contract Price for the Month it actually
          takes delivery of any Deficiency Volumes calculated as
          if the term of this Agreement had been extended to such
          Month and the Yearly Contract Price paid by Buyer in
          the Contract Year it failed to take the Deficiency
          Volumes multiplied by (ii) the Tons of Deficiency
          Volumes actually taken during the subject Month after
          this Agreement's term expires. If Buyer elects not to
          take Deficiency Volumes as set forth in this Section B,
          it waives any rights to take the Deficiency Volumes at
          a later date.

     C.   No Duty to Mitigate.  It is understood and agreed by
          Buyer that its obligation to pay for Product it elects
          not to take during any Contract Year is not in the
          nature of damages. Rather, such a payment constitutes
          an alternative measure of performance elected by Buyer.
          This alternative measure is designed to compensate Koch
          for the risk of producing, procuring and supplying the
          Product, while it is expressly understood that Buyer
          has accepted the market risk associated with such a
          contract. Therefore, if Buyer fails to take or to pay
          for the Required Yearly Quantity not taken in any
          Contract Year, Koch shall have no duty or obligation to
          resell or otherwise mitigate its potential losses
          arising from Buyer's failure to perform its contractual
          obligations.  

     D.   Measurement.  The quantity of Product delivered
          hereunder to Buyer by pipeline shall be governed by the
          weights and measures taken by meters owned by Koch
          Pipeline Company, L.P. at the Delivery Point pursuant
          to Koch Pipeline Company, L.P.'s tariff in effect on
          the date of delivery. For trucking or rail deliveries,
          the quantity of Product delivered to Buyer shall be
          governed by the weights and measures taken as the
          trucks or rail cars are loaded at the Koch Facility.
          The foregoing measurements of said quantities shall be
          final and conclusive, unless proven to be in error.  

     E.   Refund.  If Buyer and Koch execute this Agreement by
          June 1, 1997, within five (5) business days of Koch
          receiving payment from Buyer for Product purchased in
          May 1997, Koch shall refund to Buyer the difference
          between (i) the total price paid by Buyer for Product
          purchased from Koch from the Effective Date until the
          date the Contract Price becomes effective hereunder and
          (ii) the total Tons of Product purchased by Buyer from
          Koch from the Effective Date until the date the
          Contract Price becomes effective hereunder multiplied
          by the lower of (x) the Contract Price and (y) the
          "Green Markets-Gulf Coast Low Average", less three
          percent (3%). The "Green Markets Gulf Coast Low
          Average" shall mean the average of the weekly lows of
          the ranges of "Green Markets" Price Scan, Northern
          American Domestic Spot Quotes, U.S. Gulf New Orleans,
          FOB Barge for the Month of delivery.

IV.  QUALITY

     All Product delivered hereunder shall conform to the
specifications set forth in Section Q of Article I.  All claims
by Buyer that any Product delivered hereunder does not conform to
the specifications set forth in said Section Q, shall be made in
writing and sent within thirty (30) days of Koch's delivery of
such Product to the Delivery Point. Failure to give written
notice of such claim within the specified time shall constitute a
waiver and bar of and to such claim, and Buyer shall be precluded
from relying on defects which are not stated in such notice as a
basis for rejection or assertion of a breach.

V.   WARRANTIES

     A.   Koch makes no warranty of any kind, express or implied,
          except that Product sold hereunder shall conform to the
          specifications set forth in Section Q of Article I and
          that Koch will convey good title thereto, free from any
          lien or security interest. Koch ASSUMES NO OTHER
          LIABILITY WITH RESPECT TO PRODUCT AND MAKES NO OTHER
          WARRANTY WHETHER OF MERCHANTABILITY, FITNESS FOR A
          PARTICULAR PURPOSE, OR OTHERWISE, EXPRESSED OR IMPLIED,
          WITH RESPECT THERETO.

     B.   Neither party shall be liable, under any circumstances,
          for any special, indirect, incidental, consequential
          (including but not limited to, loss of profits or any
          similar damages) or punitive or exemplary damages
          arising out of this Agreement, except for third party
          personal injuries and property damage which are deemed
          by applicable law to be consequential damages. In no
          event shall the amount of any claim by Buyer, whether
          for failure to meet the specifications, for non-
          delivery, or for any other reason, be greater than the
          actual replacement costs of the Product for the
          particular shipment. In this regard, Buyer's sole and
          exclusive remedy for any breach of this Agreement by
          Koch shall be, at Koch's option, replacement of any
          nonconforming product at the Delivery Point or payment
          not to exceed the replacement price of the Product.
          Buyer shall use reasonable efforts to obtain reasonably
          priced replacement Product.

Vl.  PRICE AND PAYMENT

     A.   Contract Price. For each Ton of Required Yearly
          Quantity to be sold to Buyer hereunder, Koch shall
          charge, and Buyer shall pay to Koch the following
          Contract Price:  
               ****

     B.   Transportation Charge Adjustment.  The Transportation
          Charge component of the Gas Price shall be increased or
          decreased whenever Koch incurs a cost change to reflect
          Koch's actual natural gas transportation costs
          (including fuel) from Henry Hub to Koch's Facility.  

     C.   Fixed Charge Adjustment.  The Fixed Charge shall be
          adjusted annually beginning January 1, 1998, and shall
          be adjusted on January I of each calendar year
          thereafter, by the difference in the PPI as it existed
          on January 1, 1997, and each Contract Year thereafter. 
          To calculate each annual adjustment, the difference in
          the PPI for the preceding Contract Year (expressed as a
          percentage) and the PPI for the subject Contract Year
          (expressed as a percentage) shall be multiplied by the
          then effective Fixed Charge. For example, stated for
          illustrative purposes only, to adjust the Fixed Charge
          effective January 1, 1998, the difference in the PPI
          for the year 1997 and the PPI for 1996 will be
          calculated, and then multiplied by the Fixed Charge in
          effect on January 1, 1997.  If the PPI ceases to be
          published, or the government changes the underlying
          basis of how the index is calculated, the parties shall
          meet within thirty (30) days of the date publication
          ceases or the date the index is changed to determine a
          replacement index.

     D.   Ammonia Pipeline Transportation Charge Adjustment. The
          Ammonia Pipeline Transportation Charge shall be
          increased or decreased whenever Koch incurs a cost
          change to reflect Koch's actual Product transportation
          costs from Koch's Facility to the Delivery Point.  

     E.   Rail or Truck Transportation Costs. Notwithstanding any
          other provision of this Agreement, if ammonia pipeline
          transportation service is interrupted or curtailed,
          preventing Koch from making all or a portion of the
          required deliveries of Product hereunder, Koch shall
          use reasonable efforts to arrange rail or trucking
          transportation service from Koch's Facility to Buyer's
          Facility. Buyer shall be responsible for and reimburse
          Koch for all rail and/or trucking transportation costs
          incurred by Koch for deliveries of Product hereunder,
          including without limitation, demurrage charges.
          However, if Buyer is forced to pay a trucking and/or
          rail transportation rate that is higher than the
          Pipeline Transportation Charge and the increased
          transportation rate makes it uneconomical for Buyer to
          operate Buyer's Facility, forcing Buyer to shut down
          such facility, then Buyer shall have the right to
          suspend its performance hereunder by providing Koch
          with thirty (30) days written notice. However, Buyer
          shall not be allowed to suspend its performance
          hereunder if Koch, within its sole discretion, elects
          to pay the difference between the Ammonia Pipeline
          Transportation Charge and the trucking and/or rail
          transportation charges to the Delivery Point. If it
          remains uneconomical for Buyer to operate Buyer's
          Facility for sixty (60) consecutive days from the date
          Buyer gives Company notice solely because of the
          interruption or curtailment of pipeline Product
          deliveries hereunder and Koch elects not to pay the
          transportation differential, then Buyer shall have the
          right to terminate this Agreement by providing Koch
          with written notice within five (5) days of the end of
          the sixty (60) day period.

     F.   Payment Terms. ****

     G.   Deficiency Payment. If during a Contract Year Buyer
          fails to take the Required Yearly Quantity, Koch shall
          invoice Buyer within thirty (30) days of the end of the
          Contract Year for an amount equal to the Deficiency
          Volumes multiplied by the Yearly Contract Price for
          such Contract Year. Buyer shall pay Koch the foregoing
          amount within two (2) days of the invoice date by Koch
          debiting Buyer's bank account using EFT.  

     H.   Letter of Credit.  As assurance to Koch for Buyer's
          performance hereunder, Buyer agrees at least one
          business day prior to the execution of this Agreement
          to deliver to Koch an irrevocable standby letter of
          credit in the amount of $3.5 million dollars
          ($3,500,000) (the "LC") issued by a bank or other
          financial institution acceptable to the Credit
          Department of Koch Industries, Inc. Such LC shall be in
          the form of Addendum A attached hereto and made a part
          hereof. Buyer shall annually renew or cause the renewal
          of the LC at least thirty (30) days prior to the LC's
          expiration date. The LC shall remain effective until 30
          days after the term of this Agreement expires. If the
          bank or financial institution issuing the LC shall at
          any time cease to be acceptable to the Credit
          Department of Koch Industries, Inc., as determined in
          its sole discretion, then within fifteen (15) calendar
          days after written notice from Koch, Buyer agrees it
          shall deliver to Koch a substitute irrevocable standby
          LC issued by a bank or other financial institution
          satisfactory to Koch, without terminating the original
          or then outstanding LC until such substitute LC has
          been delivered to Koch. If Buyer fails or refuses to
          cause the renewal of an existing LC or the delivery of
          a substitute LC within the required time period, such
          failure or refusal shall constitute a material breach
          of this Agreement entitling Koch to collect damages and
          to draw on the original or then outstanding letter of
          credit for such damages, in addition to any other
          remedies Koch may be entitled to under this Agreement
          or at law or in equity. Koch shall give Buyer five (5)
          days notice prior to drawing on the LC.

     I.   Additional Credit. Koch may from time to time demand
          different terms of payment, or additional assurance of
          payment, or other credit terms whenever Koch within its
          good faith discretion deems itself insecure because the
          prospect for payment or performance reasonably appears
          impaired. In any such event, and upon written notice
          specifying the event warranting the change in terms of
          payment, additional assurance of payment, or credit,
          Koch may suspend further deliveries pending agreement
          to the revised terms, including, but not limited to,
          pending agreement of Buyer to the posting of an
          appropriate bond, an additional letter of credit or
          other security acceptable to Koch to further secure
          Buyer's obligations hereunder. If Buyer fails or
          refuses to give adequate assurance of performance or
          payment upon demand therefor, Koch may treat such
          failure or refusal as a repudiation and breach of this
          Agreement, thereby entitling Koch to exercise all
          remedies provided for under this Agreement and any
          other remedy it may have at law or in equity.  

Vll. DELIVERY

     A.   Required Yearly Quantity.  Subject to variations as may
          be necessitated due to a Force Majeure event as set out
          in Article IX, Koch shall deliver the Required Yearly
          Quantity, and Buyer shall take delivery of the Required
          Yearly Quantity in approximately equal quantities of
          10,000 Tons per Month. However, in no event (except as
          provided in the preceding sentence) shall Buyer take
          delivery of less than eight thousand (8,000) Tons per
          Month (the "Minimum Take Quantity"), nor shall Seller
          be obligated to deliver more than twelve thousand
          (12,000) Tons per Month (the "Maximum Take Quantity").
          Buyer shall notify Koch no later than the I st calendar
          day of the Month immediately prior to the Month of
          delivery of the number of Product Tons it wishes to
          receive for such Month of delivery. Buyer shall
          promptly notify Koch in writing of any known or
          anticipated changes that will not permit Buyer to
          receive the Monthly Quantity.  

     B.   Deficiency Volumes. If Buyer elects to take delivery of
          Deficiency Volumes in a subsequent Contract Year or
          after the term of this Agreement expires as set forth
          in Article III, Section B above, it shall give Koch
          forty-five (45) days written notice prior to the first
          day of the requested Month of delivery. Unless
          otherwise agreed to by Koch, Buyer shall take delivery
          of such Deficiency Volumes in approximately equal
          quantities during each Month of the subsequent Contract
          Year or the twelve (12) month period after the term of
          this Agreement expires, unless otherwise agreed to by
          Koch in writing. However, in no event shall Koch be
          required to deliver more than twelve thousand ( 12,000)
          Tons of Deficiency Volumes in any given Month.

     C.   Title and Risk of Loss.  Koch shall deliver the Product
          hereunder to Buyer at the Delivery Point, and upon the
          passing of said title to Buyer, Buyer shall be deemed
          to have exclusive ownership and control of said Product
          and shall be responsible for any injuries or damages
          caused thereby.  

VIII.     TAXES

     A.   All present and future taxes, including, but not
          limited to, the Superfund Tax, (referred to herein as
          "Taxes") relating to the Product delivered hereunder,
          including all new taxes or increases in existing taxes
          including excise taxes (but excluding Koch's net
          income, excess profits, or corporate franchise taxes)
          imposed by any governmental authority upon the
          manufacture, use, sale, or delivery of the Product,
          shall be for Buyer's account, unless Buyer delivers to
          Koch current exemption certificates evidencing Buyer's
          exemption from paying such Taxes.  

     B.   Buyer agrees to indemnify and hold harmless Koch and
          its successors and assigns from and against any and all
          excise taxes (but not including net income, excess
          profits, or corporate franchise taxes), inclusive of
          any penalty and interest, assessed at a future date
          against Koch by any governmental authority upon the
          manufacture, use, sale, or delivery of the Required
          Yearly Quantity and/or Additional Volumes, whether
          taken or not.  

IX.  FORCE MAJEURE

     A.   Neither Koch, nor Buyer, shall be liable for any
          failure or delay in performance under this Agreement,
          except for the obligation to make money payments due
          hereunder for Product already purchased, due to a Force
          Majeure event. "Force Majeure," as used herein shall
          mean any event which may be due in whole or in part to
          any contingency, delay, failure, cause or other
          occurrence of any nature beyond a party's reasonable
          control, whether it is presently occurring or occurs in
          the future, which (i) prevents Koch from producing,
          selling, purchasing or transporting the Product or (ii)
          which prevents Product from being used at Buyer's
          chemical facility in El Dorado, Arkansas (referred to
          hereinafter as Buyer's Facility).  

     B.   The term "Force Majeure" shall not include (i) an event
          caused by a party's sole or contributory negligence;
          (ii) Koch's ability to sell or Buyer's ability to
          purchase Product at a price more advantageous than the
          Contract Price; (iii) Buyer's loss of markets for
          products produced at Buyer's Facility; (iv) shutdown of
          Seller's Facility or Buyer's Facility for reasons other
          than a Force Majeure event and (v) routine or scheduled
          maintenance at Seller's Facility or Buyer's Facility.  

     C.   If a Force Majeure event occurs, the declaring party
          may exercise its right under this Article by giving
          timely notice thereof to the other party setting forth
          with reasonable particularity the nature of the Force
          Majeure event. The declaring party shall use reasonable
          efforts to remedy the situation as quickly as possible
          and shall only be excused from performance hereunder
          during the duration of the Force Majeure event. The
          declaring party shall give the other party prompt
          notice of when the Force Majeure event ends. If Koch's
          deliveries of Product to Buyer are impeded due to a
          Force Majeure event, Koch shall have the right to
          apportion deliveries among its present and future
          customers (including regular customers not then under
          contract) and Koch's own requirements on such basis as
          may appear to Koch to be appropriate and equitable.
          Koch shall not be obligated to take any action which
          would result in increasing its performance costs under
          this Agreement beyond the costs which it would have
          incurred in the absence of such occurrence, delay or
          cause. In this regard, should Koch be required to
          operate the Koch Facility in a manner that results in
          Koch violating an operational flow order or similar gas
          pipeline order in order to meet its obligations under
          this Agreement, and the violation triggers a penalty or
          other charge to be incurred by Koch, Koch shall have
          the right to invoice Buyer for such charge on a per Ton
          basis as follows: ([the dollar amount per MMBTU of such
          a charge x Conversion Factor] x the number of Tons of
          Product produced using natural gas to which such charge
          applies). Buyer agrees to pay such charge in addition
          to the Contract Price per Ton and all other charges to
          be paid by Buyer to Koch for Product under this
          Agreement until such penalty or charge is curtailed as
          against Koch, provided, that in any such event, Buyer
          will have the option of declining to take Product that
          is subject to such penalty or charge. The Required
          Yearly Quantity for the subject Contract Year shall be
          reduced by the Tons of Product Buyer declines to take
          under the preceding sentence.  

     D.   If a Force Majeure event occurs, Koch shall have the
          option, but not the obligation, to reduce the number of
          Tons of Product that it is required to deliver and
          Buyer is required to take or pay for hereunder;
          provided, that such reduction shall not affect the
          obligation of Koch to deliver, nor the obligation of
          Buyer (except as provided for herein) to take or pay
          for, the remaining Tons to be taken or paid for
          hereunder. If Koch elects to reduce the number of Tons
          Buyer is obligated to take or pay for in a particular
          Contract Year due to a Force Majeure event, or if the
          Force Majeure event continues into a subsequent
          Contract Year, Buyer's Required Yearly Quantity shall
          be reduced by number of Tons canceled by Koch due to
          the Force Majeure event. Koch's exercise of its option
          to cancel such affected Tons must be made by notice in
          writing by Koch to Buyer no later than thirty (30) days
          after the Force Majeure event no longer exists. If Koch
          does not exercise such option, the quantity of Product
          which was not delivered and received during the
          occurrence shall be delivered by Koch and received by
          Buyer after the Force Majeure event no longer exists
          during the term of this Agreement or within a
          reasonable period immediately following the expiration
          of this Agreement depending upon when Koch has Product
          available. If Koch delivers the Product after the Force
          Majeure event no longer exists during the term hereof,
          the Contract Price per Ton for such Product shall be as
          set forth in Article VI, Section A calculated for the
          Month Koch actually delivers the Product. If, however,
          Koch delivers the Product after the end of this
          Agreement's term, the price for such Product shall be
          the price per Ton according to the formula contained in
          Article Vl, Section A and the definitions contained in
          Article I that would have been charged during the Month
          the Product is actually delivered if the term of this
          Agreement had continued in effect. If a Force Majeure
          event exists for a period of sixty (60) days or longer,
          or the declaring party gives notice that such event
          will last more than sixty (60) days, the non-declaring
          party shall have the option to terminate this Agreement
          by written notice to the other. Upon such termination,
          all obligations of the parties hereunder shall
          terminate without liability to the other party, except
          for obligations which accrued prior to the effective
          date of the termination.  

     E.   If, at any time during this Agreement's term, any
          regulatory or governmental body adopts, issues, or
          publishes any action, rule, or order which directly or
          indirectly materially and adversely affects the rights
          or obligations of Koch under this Agreement or (each of
          the events described in hereafter referred to as
          "Adverse Action"), Koch shall notify Buyer in writing
          of the Adverse Action and the parties shall enter into
          negotiations to modify this Agreement. If negotiations
          regarding the Adverse Action do not result in Koch and
          Buyer agreeing on the terms of a modification to this
          Agreement within sixty (60) days of Koch's notice to
          Buyer, Koch shall have the right, but not the
          obligation, to suspend its performance hereunder until
          such time, if any, as the parties reach agreement on
          such a modification to this Agreement. In the event
          such Adverse Action continues for a period of one
          hundred twenty (120) days after Koch notifies Buyer of
          the same and the parties have not resolved the handling
          of the Adverse Action, either party may, but is not
          required to, terminate this Agreement upon thirty (30)
          days written notice to the other party within one
          hundred eighty (180) days of when Koch first notified
          buyer of the Adverse Action. Upon termination, all
          obligations by either party shall cease, except
          obligations to remit money due and payable. In the
          event of Adverse Action, upon written request, Koch
          shall provide Buyer with data or information reasonably
          necessary for Buyer to determine that such Adverse
          Action exists, subject to the confidentiality
          obligations of Article XV of this Agreement.  

X.   REMEDIES FOR PAYMENT BREACH

     A.   If Buyer is late in making any payment due to Koch
          under Article VI hereof, or otherwise, Koch may at its
          sole discretion by notice to Buyer elect one or more of
          the following courses of action: 

          1.   Cease to make any further deliveries hereunder
               until Buyer has made the late payment and has
               taken steps to assure Koch that there shall be no
               such delinquencies in the future; 

          2.   Refuse to make any further deliveries hereunder
               except upon cash payments before delivery;

          3.   Stop delivery of goods in the possession of a
               carrier or other bailee as provided by law;

          4.   Resell any Product concerned without further
               notice to Buyer and without affecting or abating
               Buyer's other obligations under this Agreement; 

          5.   Set off any obligations Koch may have to Buyer
               against the payments due Koch hereunder; or 

          6.   Draw upon any letter of credit and/or other
               security provided by Buyer hereunder, provided any
               draw by Koch shall not exceed the amounts due and
               payable.  

          If Buyer has not remedied late payments to the
          reasonable satisfaction of Koch within ten (10) days of
          such notice, Koch may at its option by notice to Buyer
          terminate this Agreement (without discharging any claim
          for breach), provided Koch shall not be allowed to
          terminate this Agreement if the amount of Buyer's
          liability to Koch does not exceed the outstanding LC
          amount and Buyer makes-up the amount drawn by Koch
          under the LC within five (5) days of the date Koch
          draws on the LC; however, Koch shall have the right to
          suspend performance until Buyer replenishes the LC. The
          election by Koch of any of the courses of action hereto
          shall in no way limit any other remedies available to
          Koch under this Agreement or otherwise at law or in
          equity.  

     B.   If either party:  

          1.   Voluntarily petitions under or otherwise seeks the
               benefit of any bankruptcy, reorganization,
               arrangement or insolvency law; or 

          2.   Makes a general assignment for the benefit of
               creditors; or

          3.   Is adjudicated bankrupt or becomes insolvent; or 

          4.   Allows a receiver or trustee of the business to be
               appointed; or 

          5.   Fails to perform any part of this Agreement (other
               than provided for in Section A. of this Article)
               and upon written notice of such failure by the
               other party fails to remedy the same within thirty
               (30) days of such notice, or in the event such
               failure cannot reasonably be cured within thirty
               (30) days, does not initiate and pursue reasonable
               corrective action within said period of time,
               then, in any of said events, this Agreement may be
               terminated forthwith by written notice at the
               option of the other party with such other party
               retaining all its other rights and remedies at law
               or in equity.  

XI.  RIGHTS NOT WAIVED

     The waiver by either party hereto of any breach of this
Agreement by the other party hereto shall not be deemed to be a
waiver of any successive or other breach of this Agreement. Each
and every right, power and remedy may be excused from time to
time and so often and in such order as may be deemed expedient by
the party, and the exercise of any such right, power or remedy
shall not be deemed a waiver of the right to exercise at the same
time or thereafter, any other right, power or remedy.  

XII. NOTICES

     Any notices, requests or other communications required or
permitted by any provision of this Agreement shall be in writing
and shall be deemed delivered if delivered by hand, facsimile or
mailed by U.S. Postal Service, postage prepaid, by registered or
certified mail, and if to Koch, addressed to:  

     Koch Nitrogen Company              Secretary
     4111 East 37th Street North        Koch Nitrogen Company
     P.O. Box 2256                      c/o Legal Department
     Wichita, KS 67201                  4111 East 37th Street North
     Attention:  President              P.O. Box 2256 
                                        Wichita, KS 67201

or, if to Buyer, addressed to:  

     El Dorado Chemical Company         El Dorado Chemical Company
     16 S. Pennsylvania                 16 S. Pennsylvania
     Oklahoma City, OK  73107           Oklahoma City, OK 73107
     Attention:  President              Attention:  General Counsel

Any party may change the address to which notices are to be given
by mailing written notice thereof to the other party as provided
above.  

XIII.     ASSIGNMENT

     Neither party shall assign or delegate, or permit by
assignment or delegation, by operation of law or otherwise any of
its rights and obligations under this Agreement to any third
party without first obtaining the prior written consent of the
other party, which shall not be unreasonably withheld.
Notwithstanding the foregoing, either party shall be allowed to
assign this Agreement to an Affiliate upon providing written
notice to the other party, provided no such transfer shall
operate to relieve the transferor party of its obligations
hereunder. For purposes of this Agreement, "Affiliate" shall mean
any corporation or other business enterprise which directly or
indirectly controls, is controlled by, or is under common control
with a party hereunder; and for the purpose of this definition
"control" shall mean the ability to directly or indirectly vote
fifty percent (50%) or more of the shares or other securities at
the time entitled to vote for the election of directors. Any
assignment or delegation, or attempted assignment or delegation,
in violation of this Article XIII shall be null and void, shall
be considered a material breach of this Agreement and shall
permit the other party in addition to any other rights which it
may hereunder or at law or in equity to terminate this Agreement
and exercise any remedies available to the non-breaching party
hereunder or at law or in equity.  

XIV. ENTIRE AGREEMENT; AMENDMENT

     This Agreement constitutes the final and complete Agreement
between the parties relative to the transactions contemplated
hereby and supersedes any and all prior or contemporaneous
agreements, understandings, correspondence or other agreements
relating to the subject matter hereof. This Agreement may be
amended only by a written document signed by duly authorized
representatives or employees of each of the parties hereto. Any
printed terms or conditions contained in any printed forms used
in placing or acknowledging orders hereunder, or otherwise used
in any way in connection with the sale and purchase provided for
in this Agreement, shall not have the effect of modifying or
amending this Agreement in any respect unless specifically
identified and accepted in writing by a duly authorized
representative of both parties.  

XV.  CONFIDENTIALITY

     If an Adverse Action, as defined in Section E of Article IX,
results in Koch's suspension of its performance hereunder, Koch
may, as provided for in said Section, provide Buyer with certain
information ("Adverse Action Information"). Koch and Buyer may
also, in connection with their respective performance of this
Agreement, communicate information, give notices and exchange
documents ("Contract Related Information"). Buyer shall maintain
in confidence the Adverse Action Information and the Contract
Related Information, and Koch shall maintain in confidence the
Contract Related Information, and such information shall be
disclosed to no one other than (i) the receiving party's
officers, directors, agents and other personnel who need to know
the same in connection with this Agreement, and such of officers,
directors, agents and other personnel shall be advised of and
bound by the confidential nature of such information or (ii) when
disclosure is required by law or pursuant to a court or
administrative order. For disclosures required under sub-item
(ii), the disclosing party shall immediately notify the other
party of the required disclosure so that the other party may seek
an appropriate protective order or other remedy and use
reasonable efforts to limit the scope of the disclosure so
required. If a protective order or other remedy is not obtained,
the disclosing party shall only furnish such portion or portions
of the Confidential Information as it is legally required to
furnish. Koch and Buyer shall take all proper precautions to
prevent such information from being acquired by any unauthorized
person, firm, company or other entity. In this regard, Koch and
Buyer acknowledge specifically, but without limitation, that both
injunctive relief and monetary damages, alone or in combination,
are appropriate remedies for any breach of this Article XV by
Koch or Buyer or any person, firm, company or other entity
obtaining such information through the recipient thereof. The
confidentiality obligations hereunder shall continue for a period
of seven (7) years after the termination of this Agreement. Koch
shall have no obligation to provide, and Buyer shall have no
right to obtain, information regarding Koch's Product supply
costs.  

XVI. ARTICLE HEADINGS

     Article headings are for the convenience of the parties and
are not considered parts of the Agreement, it being stipulated
that any headings in conflict with the substantive provisions of
the Agreement shall have no force and effect.  

XVII.     GOVERNING LAW

     This Agreement shall be governed exclusively by the laws of
the State of Kansas both with respect to interpretation and
performance without giving effect to any provision which would
direct application of the laws of another jurisdiction. Koch and
Buyer agree that venue and jurisdiction of any action or cause of
action arising hereunder shall be exclusively in the United
States District Court for the District of Kansas.  

XVIII. SEVERABILITY

     The provisions of this Agreement are severable and, if any
provisions are determined to be void or unenforceable in whole or
in part, the remaining provisions shall remain unaffected and
shall be binding and enforceable in accordance with the terms
hereof.  

XIX. AUTHORITY

     A.   Buyer warrants and represents that it is a corporation
          duly organized and validly existing and in good
          standing under the laws of the State of Oklahoma and
          has all requisite power and authority to lawfully carry
          on its business as now being conducted and
          specifically, that it has all requisite power and
          authority to make, execute, deliver and perform this
          Agreement.  

     B.   Koch warrants and represents that it is a corporation
          duly organized and validly existing and in good
          standing under the laws of the State of Nebraska and
          has all requisite power and authority to lawfully carry
          on its business as now being conducted and
          specifically, that it has all requisite power and
          authority to make, execute, deliver and perform this
          Agreement.  

XX.  LEGAL COMPLIANCE

     Each party shall be subject to all applicable laws, rules,
regulations and ordinances issued by any national, state, or
local regulatory or governing body and may act in accordance
therewith until such time as the same may be held invalid by
final judgment in a court of competent jurisdiction.  

     IN WITNESS WHEREOF, the parties have executed this Agreement
to be effective on the Effective Date by their respective
officers thereunto duly authorized.  

                    ("Koch")  KOCH NITROGEN COMPANY


                              By:  __________________________

                              Title:  _______________________

Attest:  


Secretary/Assistant Secretary



     
                    ("Buyer") EL DORADO CHEMICAL COMPANY


                              By:  __________________________

                              Title:  _______________________

Attest:  



Secretary/Assistant Secretary


STATE OF KANSAS     )
COUNTY OF SEDGWICK  )


     BEFORE ME, the undersigned, a Notary Public in and for said
County and State, on this ___ day of _____________, 1997,
personally came and appeared _______________________, who in the
presence of me, said authority, declared and acknowledged that he
is the identical person who executed the foregoing instrument in
writing; that his signature thereto is his own true and genuine
signature; and that he executed said instrument in his capacity
as President of Koch Nitrogen Company, a Nebraska corporation, of
his own free will and accord and as the free act and deed of said
Koch Nitrogen Company for the purposes and considerations therein
set forth and expressed.  
                                   
                                   Notary Public


My Commission Expires:  ______________________________



STATE OF OKLAHOMA        )
COUNTY OF CLEVELAND )

     BEFORE ME, the undersigned, a Notary Public in and for said
County and State, on this ___ day of _________, 1997, personally
came and appeared _______________, who in the presence of me,
said authority, declared and acknowledged that he is the
identical person who executed the foregoing instrument in
writing; that his signature thereto is his own true and genuine
signature; and that he executed said instrument in his capacity
as __________________ of El Dorado Chemical Company, an Oklahoma
corporation, of his own free will and accord and as the free act
and deed of said El Dorado Chemical Company, for the purposes and
considerations therein set forth and expressed.

                                   
                                   Notary Public

My Commission Expires:  ___________________________



                                  ADDENDUM A
(Bank Letterhead)                            Date:
                                        Letter of Credit No.:______________
                                        Expire Date:  
KOCH NITROGEN COMPANY
4111 E. 37TH STREET NORTH
WICHITA, KS  67220
ATTN:     CREDIT DEPARTMENT
          KEVIN SHELTON / CALVIN BAHR

GENTLEMEN:

WE HEREBY ESTABLISH OUR IRREVOCABLE STANDBY LETTER OF CREDIT IN YOUR FAVOR FOR 
THE ACCOUNT OF EL DORADO CHEMICAL COMPANY. AVAILABLE BY YOUR DRAFTS 
DRAWN AT SIGHT ON BANK NAME, CITY, STATE, FOR ANY SUM OR SUMS NOT EXCEEDING 
A TOTAL OF ABOUT U.S. 3,500,000 (THREE MILLION FIVE HUNDRED THOUSAND AND 
00/100 U.S. DOLLARS).  

ACCOMPANIED BY STATEMENT SIGNED BY A PURPORTED OFFICER OF KOCH NITROGEN COMPANY
STATING THAT:  

"EL DORADO CHEMICAL COMPANY ("EDC") HAS BEEN PROVIDED WITH AT LEAST TEN (10) 
DAYS NOTICE OF A BREACH UNDER THE ANHYDROUS AMMONIA SALES AGREEMENT 
DATED _________ ("AGREEMENT), AND, THEREFORE KOCH NITROGEN COMPANY IS DUE THE 
AMOUNT OF $________ AND MAKES THIS DRAWING FOR SUCH AMOUNT UNDER LETTER OF 
CREDIT NUMBER _________.  BREACH OF THE AGREEMENT BY EDC RELATES TO EDC 
FAILING TO RENEW THE UC AS PER THE AGREEMENT, EDC FAILING TO PAY AMOUNTS DUE 
OR OWING UNDER THE AGREEMENT, EDC ASSIGNING THE AGREEMENT TO AN UNAFFILIATED 
THIRD PARTY WITHOUT KOCH NITROGEN'S CONSENT, OR EDC FAILING TO PROVIDE A 
SUBSTITUTE UC IN FORM AND SUBSTANCE ACCEPTABLE TO KOCH AND ON A BANK ACCEPTABLE 
TO KOCH SHOULD THE BANK ISSUING THE ORIGINAL LC BECOME UNACCEPTABLE TO KOCH."

EXCEPT AS OTHERWISE STATED HEREIN, THIS CREDIT IS SUBJECT TO THE UNIFORM 
CUSTOMS AND PRACTICE FOR DOCUMENTARY CREDITS (1993 REVISION), INTERNATIONAL 
CHAMBER OF COMMERCE, PUBLICATION NO. 500.

ALSO EXCEPT AS OTHERWISE EXPRESSLY STATED HEREIN, ANY CHARGES OR COMMISSION IN
RESPECT TO THE NEGOTIATION OF DRAFTS UNDER THIS CREDIT ARE FOR OPENER'S ACCOUNT.

THE AMOUNT OF EACH DRAFT NEGOTIATED, WITH THE DATE OF NEGOTIATION, MUST BE 
ENDORSED HEREON BY THE NEGOTIATING BANK, AND ANY DRAFT PRESENTED TO US SHALL 
CONSTITUTE A WARRANTY OF THE NEGOTIATING BANK THAT SUCH ENDORSEMENT WAS 
EFFECTED.

ALL DRAFTS DRAWN UNDER THIS CREDIT SHOULD BEAR THE CLAUSE "DRAWN UNDER BANK NAME
LETTER OF CREDIT NO.___________  DATED _____________. CITY, STATE'

PARTIAL DRAWINGS ARE ACCEPTABLE AND DRAWING MAY BE MADE FOR SALES PRIOR TO AND
DURING THE TERM OF THIS CREDIT.

ANY AND/OR ALL DOCUMENTS REQUIRED BY THIS LETTER OF CREDIT MAY BE PRESENTED
REGARDLESS OF THEIR DATE OF ORIGINATION.  

IN EXCEPTION TO ARTICLE 43, PUBLICATION NO. 500, STALE DOCUMENTS ARE 
ACCEPTABLE, AND ALL DOCUMENTS REQUIRED BY THIS LETTER MAY BE SUBMITTED UNTIL 
EXPIRY.

WE HEREBY AGREE WITH YOU AND WITH NEGOTIATING BANKS AND BANKERS THAT ALL DRAFTS
DRAWN BY VIRTUE OF THIS CREDIT, AND IN ACCORDANCE WITH ITS TERMS, SHALL MEET 
WITH DUE HONOR UPON PRESENTATION AND DELIVERY OF DOCUMENTS AS SPECIFIED TO 
BANK NAME, CITY, STATE, IF NEGOTIATED, OR IF PRESENTED AT THIS OFFICE TOGETHER 
WITH LETTER OF CREDIT ON OR BEFORE (EXPIRE DATE).

YOURS VERY TRULY,

AUTHORIZED BANK REPRESENTATIVE SIGNATURE