(Isramco Letterhead Omitted)

                                                               January 27, 1997


Mr. Ishay Mor
Stonewall Resources, L.L.C.
30 Kalisher Street
Tel Aviv, Israel  65257

Dear Mr. Mor,

     This  letter is  written  to set  forth our  agreement  for  Isramco,  Inc.
("Isramco")  to  Purchase  25%  Membership  Interest  and  18.75%  After  Payout
Percentage in Jay Petroleum  L.L.C., a Texas limited  liability  company ("LLC")
from Stonewall Resources,  L.L.C.  ("Stonewall") for the purchase price of Three
Hundred  Sixty  Three   Thousand   Seven   Hundred  Fifty  and  NO/100   Dollars
($363,750.00).

     Isramco will wire  transfer the purchase  price monies to Welborn  Sullivan
Meck & Tooley, P.C. ("Escrow Agent"),  COLTAF Account,  Account No. 101-9035805,
ABA No. 102000076,  Norwest Bank of Denver,  N.A. on or before February 3, 1997.
Isramco will fax this originally executed letter agreement to Escrow Agent to be
received by Escrow Agent on or before February 3, 1997. If Escrow Agent does not
receive  the monies and the  agreement  as set forth  above,  Escrow  Agent will
immediately  return  monies  received,  if any,  to  Isramco  and the  agreement
received, if any, to Stonewall.

     This letter will serve as  Irrevocable  Instructions  to Escrow  Agent that
upon  receipt  of(I) the monies  from  Isramco and (II) the fax  agreement  from
Isramco, Escrow Agent shall immediately disburse as follows:

1.   $327,375,  the purchase  price  monies less 10% for U.S.  tax  withholdings
     ($363,750 - 36,375 = $327,375) to Stonewall  Resources,  Inc. Account No. -
     101-8156059, Norwest Bank of Denver, N.A.

2.   $36,375  to U.S.  Internal  Revenue  Service  on  Isramco's  behalf for the
     benefit of Stonewall.

3.   The originally or faxed executed letter agreement to Isramco.

     Effective upon Escrow Agent's  disbursement  as set forth above,  Stonewall
assigns all of its right,  title and interest in the L.L.C. to Isramco.  Isramco
agrees to become a member of the L.L.C.  and to be bound by and comply  with the
Regulations of the L.L.C., a copy of which it has reviewed. Stonewall represents
and warrants to Isramco that its interest it is assigning in the L.L.C., is free
and clear of any liens.


                   Isramco Inc., Israel Branch, Shavit House,
                     4 Raoul Wallenberg St., Tel-Avia 69174
                    Tel: 973-3-6490330 - Fax: 972-3-6490340







                          [ISRAMCO LETTERHEAD OMITTED]

The effective date of this  transaction is December 31, 1996. This agreement may
be signed in  counterparts.  If the  foregoing  represents  your  understanding,
please sign in the space provided.

                                        Sincerely,

                                        ISRAMCO, INC.



                                        By:  /S/  Y LEVY
                                            -----------------------------------

                                        Title:  General Manager
                                                -------------------------------



Accepted and agreed to this  23  day of January, 1997.
                            ---         -------


STONEWALL RESOURCES, L.L.C.



By: /S/  I. MOR
    ---------------------------------

Title:    Manager