SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of The Securities Act of 1934 Date of Report (Date of earliest event reported): January 26, 2001 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-A GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-B GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-C GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-D GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-E GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-F GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-G ------------------------------------------------------------------ (Exact name of Registrant as specified in its Articles) III-A: 0-18302 III-A: 73-1352993 III-B: 0-18636 III-B: 73-1358666 III-C: 0-18634 III-C: 73-1356542 III-D: 0-18936 III-D: 73-1357374 III-E: 0-19010 III-E: 73-1367188 III-F: 0-19102 III-F: 73-1377737 Oklahoma III-G: 0-19563 III-G: 73-1377828 - ---------------- -------------- ----------------- (State or other (Commission (I.R.S. Employer jurisdiction of File No.) Identification) incorporation or organization) Two West Second Street, Tulsa, Oklahoma 74103 -------------------------------------------------------- Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (918) 583-1791 -1- ITEM 5: OTHER EVENTS Year End Values. The General Partner is required to provide year-end values of the Geodyne Energy Income Limited Partnership III-A, Geodyne Energy Income Limited Partnership III-B, Geodyne Energy Income Limited Partnership III-C, Geodyne Energy Income Limited Partnership III-D, Geodyne Energy Income Limited Partnership III-E, Geodyne Energy Income Limited Partnership III-F, and Geodyne Energy Income Limited Partnership III-G (collectively, the "Partnerships") underlying properties to its limited partners pursuant to the Partnerships' partnership agreements. Attached is a form of the letter to be sent to the limited partners on or about January 26, 2001, and a chart showing, on a per-unit basis, the 2000 Year-End Estimated Valuations for the Partnerships. ITEM 7: EXHIBITS 20.1 Form of letter to be sent to the limited partners of the Partnerships on or about January 26, 2001. 99.1 Chart showing on a per-unit basis the 2000 Year-End Estimates Valuations for the Partnerships. -2- SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-A GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-B GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-C GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-D GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-E GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-F GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-G By: GEODYNE RESOURCES, INC. General Partner DATE: January 26, 2001 //s// Dennis R. Neill -------------------------- Dennis R. Neill President -3-