KOCH*
_____________________________________________________________
KOCH NITROGEN COMPANY

January 4, 2000

Mr. Jim Wewers
President
Eldorado Chemical Company
Box 1373
Oklahoma City, Ok

Re:  Anhydrous Ammonia

Dear Jim,

Per our conversation today and pursuant to Article III, Section B
of  our  Anhydrous Ammonia Sales Agreement effective  October  1,
1999,  Koch Nitrogen and Eldorado Chemical Company agree to  sell
and  purchase,  respectively, additional  tonnage,  approximately
8,000 tons per month January through December 2000, above the new
50%  requirement  amounts.  Price for these  tons  will  be  ***.
Shipments  against the 50% requirements will be made  during  the
first  15  days of the month, the additional tonnage named  above
will  be shipped in the last 15 days of the month.  Either  party
may  cancel  the  terms of this letter agreement  with  120  days
written  notice.  All other terms and conditions as per  the  new
50% requirements contract effective October 1, 1999.

If  you are in agreement with the above terms, please sign  where
noted below.

Regards,

/s/ Mark R. Jones
Mark Jones
Koch Nitrogen

Eldorado Chemical Company

By: /s/ James L. Wewers
   ____________________________
Printed Name James L. Wewers
            ___________________
Title President
     __________________________

P.O. Box 2256    Wichita, Kansas 67201-2256   316/828-4889

*INFORMATION IN THIS DOCUMENT 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.


***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.