UNITED STATES
                       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): September 12, 2007

      GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED PARTNERSHIP P-4
      GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED PARTNERSHIP P-6

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             (Exact name of Registrant as specified in its Charter)


                      P-4: 0-18308        P-4: 73-1341929
   Oklahoma           P-6: 0-18937        P-6: 73-1357375
- ----------------    ----------------    -------------------
(State or other       (Commission       (I.R.S. Employer
 jurisdiction of       File Number)      Identification No.)
 incorporation)

                  Two West Second Street, Tulsa, Oklahoma 74103
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               (Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (918) 583-1791

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the Registrant under any of the
following provisions:

      [   ] Written  communications  pursuant to Rule 425 under the Securities
            Act (17 CFR 230.425)
      [   ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
            (17 CFR 240.14a-12)
      [   ] Pre-commencement  communications  pursuant to Rule 14d-2(b) under
            the Exchange Act (17 CFR 240.14d-2(b))
      [   ] Pre-commencement  communications  pursuant to Rule 13e-4(c) under
            the Exchange Act (17 CFR 240.13e-4(c))


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ITEM 2.01.  COMPLETION OF ACQUISITION OR DISPOSITION OF ASSETS

     On September  12, 2007,  the Geodyne  Institutional/Pension  Energy  Income
Limited Partnership P-4 and Geodyne  Institutional/Pension Energy Income Limited
Partnership  P-6 (the  "Partnerships")  sold  their  interests  in a  number  of
producing  properties  to  independent  third  parties  at The Oil and Gas Asset
Clearinghouse auction in Houston,  Texas. Samson Resources Company, an affiliate
of the General Partner,  purchased  properties  through the competitive  bidding
process  at the  auction  from the P-4  Partnership  for total net  proceeds  of
approximately  $8,000.  Total  net  proceeds,   including  sales  to  affiliated
entities, for the auction are as described below:

                                         Reserves
       Number                             Sold as        Reserve
         of     Location     Number     of 12/31/06       Value
        Wells      of          of       Oil     Gas       Sold       Net
P/ship  Sold   Properties  Purchasers (Bbls)   (Mcf)    12/31/06   Proceeds
- ------ ------ ------------ ---------- ------  -------   --------   --------

  P-4    37   New Mexico        8       497   121,164   $227,774   $185,000

              Campbell Co.
  P-6   107    Wyoming          3     8,295   403,751    628,105    897,000


     The transactions are subject to standard auction closing conditions.

     The proceeds from the sales,  less transaction  costs,  will be included in
the November 15, 2007 cash distributions paid by the Partnerships.

     This sale was in conjunction with the Partnerships'  scheduled  termination
on December 31, 2007. All of the  Partnerships'  properties will be sold as part
of the liquidation  process.  It is anticipated that auction sales will continue
through at least early 2008.


ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS

     The pro forma  financial  information  that would be  required  pursuant to
Article 11 of  Regulation  S-X will be filed by amendment to this Form 8-K on or
before October 3, 2007.


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                                   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 INSTITUTIONAL/PENSION ENERGY
                                      INCOME LIMITED PARTNERSHIP P-4
                                    GEODYNE INSTITUTIONAL/PENSION ENERGY
                                      INCOME LIMITED PARTNERSHIP P-6

                                    By:  GEODYNE RESOURCES, INC.
                                         General Partner

                                         //s// Dennis R Neill
                                         -----------------------------
                                         Dennis R. Neill
                                         President

DATE: September 18, 2007


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