UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC File Number: III-A: 0-18302 III-D: 0-18936 III-B: 0-18636 III-E: 0-19010 III-C: 0-18634 III-F: 0-19102 (Check One) ( X ) Form 10-K ( ) Form 20-F ( ) Form 11-K ( ) Form 10-Q ( ) Form 10-D ( ) Form N-SAR ( ) Form N-CSR For Period Ended: December 31, 2006 ( ) Transition Report on Form 10-K ( ) Transition Report on Form 20-F ( ) Transition Report on Form 11-K ( ) Transition Report on Form 10-Q ( ) Transition Report on Form N-SAR For the Transition Period Ended: ______________ NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION HAS VERIFIED ANY INFORMATION CONTAINED HEREIN. If the notification relates to a portion of the filing checked above, identify the item(s) to which the notification relates: -------------. ------------------------------------------- PART I--REGISTRANT INFORMATION ------------------------------------------- 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 -------------------------------------------------------- (Full Name of Registrant) Two West Second Street, Tulsa, Oklahoma 74103 ------------------------------------------------------------ (Address of principal executive offices) (Zip Code) -1- ------------------------------------------- PART II--RULES 12-b25(b) AND (c) ------------------------------------------- If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate) ( X ) (a) The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense; (b) The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and (c) The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached if applicable. ------------------------------------------- PART III--NARRATIVE ------------------------------------------- State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period. Geodyne Resources, Inc. ("Geodyne") serves as general partner of 26 related limited partnerships, including 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 and Geodyne Energy Income Limited Partnership III-F. Many of these partnerships sold oil and gas properties at auction during February 2007 which required the filing of Current Reports on Form 8-K with the Securities and Exchange Commission. Geodyne was required to prepare pro-forma financial statements for filing with these Current Reports. Geodyne has also been preparing for additional property sales during May 2007 as well as planning for the liquidation of the partnerships as of the end of this year. Geodyne's activities related to the past and future sales of properties, preparation of the Annual Reports on Form 10-K, preparing for the liquidation and termination of the partnerships, and regular management functions of all 26 of the partnerships, including the registrants, have placed a significant time and workload strain on Geodyne's staff. As a result, Annual Reports on Form 10-K cannot be timely filed without unreasonable effort and/or expense. The Annual Reports will be filed on or before April 14, 2007. -2- ------------------------------------------- PART IV--OTHER INFORMATION ------------------------------------------- (1) Name and telephone number of person to contact in regard to this notification: Annabel M. Jones 918-591-1006 (2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). ( X ) YES ( ) NO (3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? ( ) YES ( X ) NO If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made. -3- SIGNATURES The Registrant has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized. (Registrant) 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 BY: GEODYNE RESOURCES, INC. General Partner Date: March 30, 2007 By: /s/ Dennis R. Neill ------------------------------- (Signature) Dennis R. Neill President -4-