November 21, 2003



TO:   All  Limited   Partners  in  the  Geodyne  Energy  Income  Limited
      Partnership I-D, I-E and I-F

RE:   Election to extend terms of Partnerships for additional two years


      As previously described to you, the limited partnership  agreements,  as
amended (the  "Agreements")  for the above  referenced  Geodyne  Energy Income
Limited Partnerships (the  "Partnerships")  provide that the Partnerships will
automatically terminate and dissolve on December 31, 2003.

The Agreements  give Geodyne  Resources as General Partner an option to extend
the terms of the Partnerships  for up to five additional two year terms.  Four
years ago  Geodyne  exercised  the first  such  extensions,  and two years ago
exercised  the second such  extensions.  Geodyne is hereby  notifying you that
it has elected to extend the Partnerships'  terms for a third,  additional two
year period.  Accordingly,  Geodyne will file amendments to the  Partnerships'
Certificates of Limited  Partnership  extending the Partnerships'  terms until
December 31, 2005.

If you have any questions  concerning  the  Partnerships'  extensions,  please
contact Geodyne Investor Services at 918-583-1791 or 888-436-3963.

                                    Very truly yours,

                                    GEODYNE RESOURCES, INC.,
                                    General Partner


                                    Dennis R. Neill
                                    President