GEODYNE ENERGY INCOME LTD PARTNERSHIP I-B
10-Q, 1999-11-05
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

               QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934


For the quarter ended September 30, 1999


Commission File Number:

      I-B:  0-14657           I-C:  0-14658           I-D:  0-15831
      I-E:  0-15832           I-F:  0-15833

           GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
           GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
           GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
           GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
           GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
      --------------------------------------------------------
      (Exact name of Registrant as specified in its Articles)


                                          I-B 73-1231999
                                          I-C 73-1252536
                                          I-D 73-1265223
                                          I-E 73-1270110
         Oklahoma                         I-F 73-1292669
- ----------------------------    -------------------------------
(State or other jurisdiction    (I.R.S. Employer Identification
   of incorporation or                         Number)
     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



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                        Yes     X               No
                            ------                    ------




                                       1
<PAGE>

                          PART I. FINANCIAL INFORMATION


ITEM 1.  FINANCIAL STATEMENTS

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                             September 30,     December 31,
                                                 1999              1998
                                             -------------     ------------

CURRENT ASSETS:
   Cash and cash equivalents                    $ 66,237          $ 20,930
   Accounts receivable:
      Oil and gas sales                           81,868            18,364
      General Partner (Note 2)                         -             6,814
                                                --------          --------
        Total current assets                    $148,105          $ 46,108

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method                 262,336           275,445

DEFERRED CHARGE                                   74,248            74,248
                                                --------          --------
                                                $484,689          $395,801
                                                ========          ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                             $  4,176          $ 24,273
                                                --------          --------
        Total current liabilities               $  4,176          $ 24,273

ACCRUED LIABILITY                               $ 23,490          $ 23,490

PARTNERS' CAPITAL (DEFICIT):
   General Partner                             ($102,248)        ($107,999)
   Limited Partners, issued and
      outstanding, 11,958 units                  559,271           456,037
                                                --------          --------
        Total Partners' capital                 $457,023          $348,038
                                                --------          --------
                                                $484,689          $395,801
                                                ========          ========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       2
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF OPERATIONS
             FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999               1998
                                               --------           --------

REVENUES:
   Oil and gas sales                            $154,468           $79,710
   Interest income                                    77               402
                                                --------           -------
                                                $154,545           $80,112

COSTS AND EXPENSES:
   Lease operating                              $ 13,252           $17,317
   Production tax                                 10,257             5,012
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  18,125            17,089
   General and administrative
      (Note 2)                                    12,888            14,042
                                                --------           -------
                                                $ 54,522           $53,460
                                                --------           -------

NET INCOME                                      $100,023           $26,652
                                                ========           =======
GENERAL PARTNER - NET INCOME                    $  5,723           $ 1,996
                                                ========           =======
LIMITED PARTNERS - NET INCOME                   $ 94,300           $24,656
                                                ========           =======
NET INCOME per unit                             $   7.89           $  2.06
                                                ========           =======
UNITS OUTSTANDING                                 11,958            11,958
                                                ========           =======


         The accompanying condensed notes are an integral part of these
                         combined financial statements.

                                       3
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF OPERATIONS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                  1999               1998
                                               ---------          ---------

REVENUES:
   Oil and gas sales                            $284,764           $199,910
   Interest income                                   145              1,134
   Loss on sale of oil and gas
      properties                                       -          (     106)
                                                --------           --------
                                                $284,909           $200,938

COSTS AND EXPENSES:
   Lease operating                              $ 53,981           $ 46,326
   Production tax                                 17,944             11,942
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  40,174             39,052
   General and administrative
      (Note 2)                                    48,774             48,009
                                                --------           --------
                                                $160,873           $145,329
                                                --------           --------

NET INCOME                                      $124,036           $ 55,609
                                                ========           ========
GENERAL PARTNER - NET INCOME                    $  7,802           $  4,286
                                                ========           ========
LIMITED PARTNERS - NET INCOME                   $116,234           $ 51,323
                                                ========           ========
NET INCOME per unit                             $   9.72           $   4.29
                                                ========           ========
UNITS OUTSTANDING                                 11,958             11,958
                                                ========           ========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       4
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF CASH FLOWS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)


                                                 1999               1998
                                               --------          ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                  $124,036           $ 55,609
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                               40,174             39,052
      Loss on sale of oil and gas
        properties                                    -                106
      (Increase) decrease in accounts
        receivable - oil and gas sales        (  63,504)            24,895
      Decrease in accounts receivable -
        General Partner                           6,814                  -
      Decrease in accounts payable            (  20,097)         (   4,070)
                                               --------           --------
Net cash provided by operating
   activities                                  $ 87,423           $115,592
                                               --------           --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                       ($ 27,321)         ($    105)
   Proceeds from sale of oil and gas
      properties                                    256                  -
                                               --------           --------
Net cash used by investing
   activities                                 ($ 27,065)         ($    105)
                                               --------           --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                         ($ 15,051)         ($140,219)
                                               --------           --------
Net cash used by financing activities         ($ 15,051)         ($140,219)
                                               --------           --------

NET INCREASE (DECREASE) IN CASH AND
   CASH EQUIVALENTS                            $ 45,307          ($ 24,732)

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           20,930             77,028
                                               --------           --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                               $ 66,237           $ 52,296
                                               ========           ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       5
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                             September 30,     December 31,
                                                 1999              1998
                                             -------------     ------------

CURRENT ASSETS:
   Cash and cash equivalents                    $ 19,825          $ 33,065
   Accounts receivable:
      Oil and gas sales                           99,363            51,790
      General Partner (Note 2)                         -            18,767
                                                --------          --------
        Total current assets                    $119,188          $103,622

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method                 175,365           175,640

DEFERRED CHARGE                                   80,059            80,059
                                                --------          --------
                                                $374,612          $359,321
                                                ========          ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                             $ 12,719          $ 13,520
                                                --------          --------
        Total current liabilities               $ 12,719          $ 13,520

ACCRUED LIABILITY                               $ 12,927          $ 12,927

PARTNERS' CAPITAL (DEFICIT):
   General Partner                             ($ 93,761)        ($ 96,039)
   Limited Partners, issued and
      outstanding, 8,885 units                   442,727           428,913
                                                --------          --------
        Total Partners' capital                 $348,966          $332,874
                                                --------          --------
                                                $374,612          $359,321
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       6
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF OPERATIONS
             FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999             1998
                                              ----------        ---------

REVENUES:
   Oil and gas sales                           $135,754          $95,155
   Interest income                                  185              358
                                               --------          -------
                                               $135,939          $95,513

COSTS AND EXPENSES:
   Lease operating                             $ 40,472          $46,679
   Production tax                                 8,381            6,261
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  6,484            5,342
   General and administrative
      (Note 2)                                   24,547           25,400
                                               --------          -------
                                               $ 79,884          $83,682
                                               --------          -------

NET INCOME                                     $ 56,055          $11,831
                                               ========          =======
GENERAL PARTNER - NET INCOME                   $  3,053          $   788
                                               ========          =======
LIMITED PARTNERS - NET INCOME                  $ 53,002          $11,043
                                               ========          =======
NET INCOME per unit                            $   5.97          $  1.24
                                               ========          =======
UNITS OUTSTANDING                                 8,885            8,885
                                               ========          =======


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       7
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF OPERATIONS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $324,129          $377,250
   Interest income                                  523             2,348
   Loss on sale of oil and gas
      properties                                      -         (      20)
                                               --------          --------
                                               $324,652          $379,578

COSTS AND EXPENSES:
   Lease operating                             $100,971          $140,610
   Production tax                                18,887            23,337
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 19,568            18,338
   General and administrative
      (Note 2)                                   81,467            80,561
                                               --------          --------
                                               $220,893          $262,846
                                               --------          --------

NET INCOME                                     $103,759          $116,732
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $  5,945          $  6,453
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $ 97,814          $110,279
                                               ========          ========
NET INCOME per unit                            $  11.01          $  12.41
                                               ========          ========
UNITS OUTSTANDING                                 8,885             8,885
                                               ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       8
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF CASH FLOWS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)
                                                  1999               1998
                                               ---------          ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                   $103,759          $116,732
   Adjustments to reconcile net income
      to net cash provided by operating
      activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                                19,568            18,338
      Loss on sale of oil and gas
        properties                                     -                20
      (Increase) decrease in accounts
        receivable - oil and gas sales         (  47,573)           69,340
      Decrease in accounts receivable -
        General Partner                           18,767                 -
      Decrease in accounts payable             (     801)        (   6,708)
                                                --------          --------
Net cash provided by operating
   activities                                   $ 93,720          $197,722
                                                --------          --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                        ($ 19,341)         $      -
   Proceeds from sale of oil and
      gas properties                                  48             1,781
                                                --------          --------
Net cash provided (used) by investing
   activities                                  ($ 19,293)         $  1,781
                                                --------          --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                          ($ 87,667)        ($302,988)
                                                --------          --------
Net cash used by financing activities          ($ 87,667)        ($302,988)
                                                --------          --------

NET DECREASE IN CASH AND CASH
   EQUIVALENTS                                 ($ 13,240)        ($103,485)

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                            33,065           141,699
                                                --------          --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                                $ 19,825          $ 38,214
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       9
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                             September 30,     December 31,
                                                 1999              1998
                                             ------------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                    $181,811          $167,361
   Accounts receivable:
      Oil and gas sales                          173,766           134,477
                                                --------          --------
        Total current assets                    $355,577          $301,838

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method                 561,094           605,793

DEFERRED CHARGE                                   66,062            66,062
                                                --------          --------
                                                $982,733          $973,693
                                                ========          ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                             $  8,199          $  9,270
   Gas imbalance payable                          43,521            43,521
                                                --------          --------
        Total current liabilities               $ 51,720          $ 52,791

ACCRUED LIABILITY                               $ 14,456          $ 14,456

PARTNERS' CAPITAL (DEFICIT):
   General Partner                             ($ 26,199)        ($ 53,161)
   Limited Partners, issued and
      outstanding, 7,195 units                   942,756           959,607
                                                --------          --------
        Total Partners' capital                 $916,557          $906,446
                                                --------          --------
                                                $982,733          $973,693
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       10
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF OPERATIONS
             FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $250,390          $331,185
   Interest income                                1,544             3,210
   Gain on sale of oil and gas
      properties                                    494             4,186
                                               --------          --------
                                               $252,428          $338,581

COSTS AND EXPENSES:
   Lease operating                             $ 22,130          $ 24,216
   Production tax                                17,028            22,718
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 15,407            20,706
   General and administrative
      (Note 2)                                   20,934            21,655
                                               --------          --------
                                               $ 75,499          $ 89,295
                                               --------          --------

NET INCOME                                     $176,929          $249,286
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $ 28,465          $ 39,810
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $148,464          $209,476
                                               ========          ========
NET INCOME per unit                            $  20.64          $  29.12
                                               ========          ========
UNITS OUTSTANDING                                 7,195             7,195
                                               ========          ========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.

                                       11
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF OPERATIONS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                               --------         ----------

REVENUES:
   Oil and gas sales                           $572,783          $  811,567
   Interest income                                4,124               9,298
   Gain on sale of oil and gas
      properties                                    494             259,982
                                               --------          ----------
                                               $577,401          $1,080,847

COSTS AND EXPENSES:
   Lease operating                             $ 75,962          $   81,687
   Production tax                                39,550              54,540
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 45,463              48,294
   General and administrative
      (Note 2)                                   69,490              69,222
                                               --------          ----------
                                               $230,465          $  253,743
                                               --------          ----------

NET INCOME                                     $346,936          $  827,104
                                               ========          ==========
GENERAL PARTNER - NET INCOME                   $ 57,787          $  129,432
                                               ========          ==========
LIMITED PARTNERS - NET INCOME                  $289,149          $  697,672
                                               ========          ==========
NET INCOME per unit                            $  40.19          $    96.97
                                               ========          ==========
UNITS OUTSTANDING                                 7,195               7,195
                                               ========          ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       12
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF CASH FLOWS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)


                                                  1999              1998
                                               ----------        ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                   $346,936          $827,104
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                                45,463            48,294
      Gain on sale of oil and gas
        properties                             (     494)        ( 259,982)
      (Increase) decrease in accounts
        receivable - oil and gas sales         (  39,289)          142,311
      Decrease in accounts payable             (   1,071)        (  22,946)
                                                --------          --------
Net cash provided by operating
   activities                                   $351,545          $734,781
                                                --------          --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                        ($    764)        ($  2,364)
   Proceeds from sale of oil and
      gas properties                                 494           272,824
                                                --------          --------
Net cash provided (used) by
   investing activities                        ($    270)         $270,460
                                                --------          --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                          ($336,825)        ($990,251)
                                                --------          --------
Net cash used by financing activities          ($336,825)        ($990,251)
                                                --------          --------

NET INCREASE IN CASH AND CASH
   EQUIVALENTS                                  $ 14,450          $ 14,990

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           167,361           274,109
                                                --------          --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                                $181,811          $289,099
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       13
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                             September 30,     December 31,
                                                 1999              1998
                                             ------------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                  $  670,194        $   12,003
   Accounts receivable:
      Oil and gas sales                          810,904           651,445
                                              ----------        ----------
        Total current assets                  $1,481,098        $  663,448

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method               3,786,954         4,191,663

DEFERRED CHARGE                                  570,545           570,545
                                              ----------        ----------
                                              $5,838,597        $5,425,656
                                              ==========        ==========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                           $   66,608        $  209,486
   Gas imbalance payable                         115,808           115,808
                                              ----------        ----------
        Total current liabilities             $  182,416        $  325,294

ACCRUED LIABILITY                             $  151,490        $  151,490

PARTNERS' CAPITAL (DEFICIT):
   General Partner                           ($   86,408)      ($  232,100)
   Limited Partners, issued and
      outstanding, 41,839 units                5,591,099         5,180,972
                                              ----------        ----------
        Total Partners' capital               $5,504,691        $4,948,872
                                              ----------        ----------
                                              $5,838,597        $5,425,656
                                              ==========        ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       14
<PAGE>

                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF OPERATIONS
             FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                  1999             1998
                                               ----------      -----------

REVENUES:
   Oil and gas sales                           $1,252,798      $1,332,007
   Interest income                                  6,275          11,851
   Gain on sale of oil and gas
      properties                                    1,587           9,953
                                               ----------      ----------
                                               $1,260,660      $1,353,811

COSTS AND EXPENSES:
   Lease operating                             $  192,512      $  209,281
   Production tax                                  77,422          96,904
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  155,433         210,621
   General and administrative
      (Note 2)                                    121,723         125,620
                                               ----------      ----------
                                               $  547,090      $  642,426
                                               ----------      ----------

NET INCOME                                     $  713,570      $  711,385
                                               ==========      ==========
GENERAL PARTNER - NET INCOME                   $  127,855      $  134,417
                                               ==========      ==========
LIMITED PARTNERS - NET INCOME                  $  585,715      $  576,968
                                               ==========      ==========
NET INCOME per unit                            $    14.00      $    13.79
                                               ==========      ==========
UNITS OUTSTANDING                                  41,839          41,839
                                               ==========      ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       15
<PAGE>

                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF OPERATIONS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                  1999             1998
                                              -----------      -----------

REVENUES:
   Oil and gas sales                          $2,906,835       $3,424,077
   Interest income                                 9,444           34,150
   Gain on sale of oil and gas
      properties                                   1,587        1,159,004
   Insurance settlement                          675,000                -
                                              ----------       ----------
                                              $3,592,866       $4,617,231

COSTS AND EXPENSES:
   Lease operating                            $  640,242       $  665,420
   Production tax                                187,037          241,843
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 432,075          523,339
   General and administrative
      (Note 2)                                   400,334          398,470
                                              ----------       ----------
                                              $1,659,688       $1,829,072
                                              ----------       ----------

NET INCOME                                    $1,933,178       $2,788,159
                                              ==========       ==========
GENERAL PARTNER - NET INCOME                  $  349,051       $  486,369
                                              ==========       ==========
LIMITED PARTNERS - NET INCOME                 $1,584,127       $2,301,790
                                              ==========       ==========
NET INCOME per unit                           $    37.86       $    55.02
                                              ==========       ==========
UNITS OUTSTANDING                                 41,839           41,839
                                              ==========       ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       16
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF CASH FLOWS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                 $1,933,178        $2,788,159
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                               432,075           523,339
      Gain on sale of oil and gas
        properties                           (     1,587)      ( 1,159,004)
      (Increase) decrease in accounts
        receivable - oil and gas sales       (   159,459)          476,744
      Decrease in accounts receivable -
        other                                          -            69,917
      Decrease in accounts payable           (   142,878)      (   189,112)
                                              ----------        ----------
Net cash provided by operating
   activities                                 $2,061,329        $2,510,043
                                              ----------        ----------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                      ($   27,366)       $        -
   Proceeds from sale of oil and
      gas properties                               1,587         1,278,511
                                              ----------        ----------
Net cash provided (used) by
   investing activities                      ($   25,779)       $1,278,511
                                              ----------        ----------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                        ($1,377,359)      ($3,639,630)
                                              ----------        ----------
Net cash used by financing activities        ($1,377,359)      ($3,639,630)
                                              ----------        ----------

NET INCREASE IN CASH AND CASH
   EQUIVALENTS                                $  658,191        $  148,924

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                            12,003           827,775
                                              ----------        ----------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                              $  670,194        $  976,699
                                              ==========        ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       17
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                             September 30,     December 31,
                                                 1999              1998
                                             ------------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                  $  158,945        $    5,457
   Accounts receivable:
      Oil and gas sales                          258,091           195,444
                                              ----------        ----------
        Total current assets                  $  417,036        $  200,901

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method               1,194,825         1,311,368

DEFERRED CHARGE                                  346,704           346,704
                                              ----------        ----------
                                              $1,958,565        $1,858,973
                                              ==========        ==========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                           $   31,406        $  406,740
   Gas imbalance payable                          38,738            38,738
                                              ----------        ----------
        Total current liabilities             $   70,144        $  445,478

ACCRUED LIABILITY                             $  109,153        $  109,153

PARTNERS' CAPITAL (DEFICIT):
   General Partner                           ($    4,705)      ($   94,547)
   Limited Partners, issued and
      outstanding, 14,321 units                1,783,973         1,398,889
                                              ----------        ----------
        Total Partners' capital               $1,779,268        $1,304,342
                                              ----------        ----------
                                              $1,958,565        $1,858,973
                                              ==========        ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       18
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF OPERATIONS
             FOR THE THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $408,335          $409,569
   Interest income                                1,095             3,065
   Gain on sale of oil and
      gas properties                                546             2,403
                                               --------          --------
                                               $409,976          $415,037

COSTS AND EXPENSES:
   Lease operating                             $100,184          $ 93,294
   Production tax                                22,677            30,034
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 49,917            65,631
   General and administrative
      (Note 2)                                   41,662            42,912
                                               --------          --------
                                               $214,440          $231,871
                                               --------          --------

NET INCOME                                     $195,536          $183,166
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $ 36,154          $ 36,204
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $159,382          $146,962
                                               ========          ========
NET INCOME per unit                            $  11.13          $  10.26
                                               ========          ========
UNITS OUTSTANDING                                14,321            14,321
                                               ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       19
<PAGE>

                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF OPERATIONS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999               1998
                                             -----------        -----------

REVENUES:
   Oil and gas sales                         $  919,529          $1,096,504
   Interest income                                1,856              10,784
   Gain on sale of oil and
      gas properties                                546             335,669
   Insurance settlement                         472,500                   -
                                             ----------          ----------
                                             $1,394,431          $1,442,957

COSTS AND EXPENSES:
   Lease operating                           $  277,636          $  309,400
   Production tax                                53,848              74,424
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                134,083             161,523
   General and administrative
      (Note 2)                                  137,597             136,788
                                             ----------          ----------
                                             $  603,164          $  682,135
                                             ----------          ----------

NET INCOME                                   $  791,267          $  760,822
                                             ==========          ==========
GENERAL PARTNER - NET INCOME                 $  137,183          $  135,119
                                             ==========          ==========
LIMITED PARTNERS - NET INCOME                $  654,084          $  625,703
                                             ==========          ==========
NET INCOME per unit                          $    45.67          $    43.69
                                             ==========          ==========
UNITS OUTSTANDING                                14,321              14,321
                                             ==========          ==========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       20
<PAGE>

                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF CASH FLOWS
              FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998
                                   (Unaudited)

                                                1999               1998
                                              --------          -----------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                 $791,267          $  760,822
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                             134,083             161,523
      Gain on sale of oil and gas
        properties                           (     546)        (   335,669)
      (Increase) decrease in accounts
        receivable - oil and gas sales       (  62,647)            146,457
      Decrease in accounts receivable -
        other                                        -              48,942
      Decrease in accounts payable           ( 375,334)        (    20,861)
                                              --------          ----------
Net cash provided by operating
   activities                                 $486,823          $  761,214
                                              --------          ----------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                      ($ 18,998)        ($    4,488)
   Proceeds from sale of oil and
      gas properties                             2,004             438,200
                                              --------          ----------
Net cash provided (used) by
   investing activities                      ($ 16,994)         $  433,712
                                              --------          ----------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                        ($316,341)        ($1,166,438)
                                              --------          ----------
Net cash used by financing activities        ($316,341)        ($1,166,438)
                                              --------          ----------

NET INCREASE IN CASH AND CASH
   EQUIVALENTS                                $153,488          $   28,488

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           5,457             251,220
                                              --------          ----------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                              $158,945          $  279,708
                                              ========          ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       21
<PAGE>

             GEODYNE ENERGY INCOME PROGRAM I LIMITED PARTNERSHIPS
             CONDENSED NOTES TO THE COMBINED FINANCIAL STATEMENTS
                               SEPTEMBER 30, 1999
                                   (Unaudited)


1.    ACCOUNTING POLICIES
      -------------------

      The combined balance sheets as of September 30, 1999,  combined statements
      of operations  for the three and nine months ended  September 30, 1999 and
      1998,  and  combined  statements  of cash flows for the nine months  ended
      September 30, 1999 and 1998 have been prepared by Geodyne Resources, Inc.,
      the  General  Partner of the limited  partnerships,  without  audit.  Each
      limited  partnership  is a general  partner in the related  Geodyne Energy
      Income Production  Partnership in which Geodyne Resources,  Inc. serves as
      the  managing  partner.  Unless  the  context  indicates  otherwise,   all
      references to a "Partnership" or the  "Partnerships" are references to the
      limited partnership and its related production partnership,  collectively,
      and all references to the "General  Partner" are references to the general
      partner  of the  limited  partnerships  and the  managing  partner  of the
      production  partnerships,  collectively.  In the opinion of management the
      financial statements referred to above include all necessary  adjustments,
      consisting of normal recurring adjustments, to present fairly the combined
      financial  position  at  September  30,  1999,  the  combined  results  of
      operations  for the three and nine  months  ended  September  30, 1999 and
      1998, and the combined cash flows for the nine months ended  September 30,
      1999 and 1998.

      Information  and  footnote  disclosures  normally  included  in  financial
      statements  prepared in  accordance  with  generally  accepted  accounting
      principles  have been  condensed  or  omitted.  The  accompanying  interim
      financial  statements should be read in conjunction with the Partnerships'
      Annual Report on Form 10-K filed for the year ended December 31, 1998. The
      results of  operations  for the period  ended  September  30, 1999 are not
      necessarily indicative of the results to be expected for the full year.

      The  Limited  Partners'  net  income  or loss per unit is based  upon each
      $1,000 initial capital contribution.


                                       22
<PAGE>
      OIL AND GAS PROPERTIES
      ----------------------

      The  Partnerships  follow the successful  efforts method of accounting for
      their oil and gas properties.  Under the successful  efforts  method,  the
      Partnerships  capitalize all property  acquisition  costs and  development
      costs incurred in connection  with the further  development of oil and gas
      reserves.  Property  acquisition  costs  include  costs  incurred  by  the
      Partnerships  or the  General  Partner  to acquire  producing  properties,
      including  related  title  insurance or  examination  costs,  commissions,
      engineering, legal and accounting fees, and similar costs directly related
      to the acquisitions,  plus an allocated portion,  of the General Partner's
      property  screening  costs.  The acquisition  cost to the  Partnerships of
      properties  acquired by the General Partner is adjusted to reflect the net
      cash results of  operations,  including  interest  incurred to finance the
      acquisition, for the period of time the properties are held by the General
      Partner prior to their transfer to the Partnerships.  Leasehold impairment
      is recognized based upon an individual property assessment and exploratory
      experience.  Upon discovery of commercial  reserves,  leasehold  costs are
      transferred to producing properties.

      Depletion of the costs of producing oil and gas  properties,  amortization
      of related intangible  drilling and development costs, and depreciation of
      tangible lease and well  equipment are computed on the  unit-of-production
      method.  The  Partnerships'  depletion,   depreciation,  and  amortization
      includes  estimated  dismantlement and abandonment costs, net of estimated
      salvage value.

      When complete units of depreciable property are retired or sold, the asset
      cost and related accumulated  depreciation are eliminated with any gain or
      loss  reflected in income.  When less than complete  units of  depreciable
      property  are retired or sold,  the  proceeds  are credited to oil and gas
      properties.


                                       23
<PAGE>

2.    TRANSACTIONS WITH RELATED PARTIES
      ---------------------------------

      The Partnerships'  partnership agreements provide for reimbursement to the
      General Partner for all direct general and administrative expenses and for
      the general and  administrative  overhead  applicable to the  Partnerships
      based on an allocation of actual costs  incurred.  During the three months
      ended  September 30, 1999 the following  payments were made to the General
      Partner or its affiliates by the Partnerships:

                                Direct General           Administrative
            Partnership        and Administrative           Overhead
            -----------        -------------------       ---------------
               I-B                  $1,575                   $ 11,313
               I-C                   1,165                     23,382
               I-D                     948                     19,986
               I-E                   5,503                    116,220
               I-F                   1,882                     39,780

      During the nine months ended  September  30, 1999 the  following  payments
      were made to the General Partner or its affiliates by the Partnerships:

                                 Direct General          Administrative
            Partnership        and Administrative           Overhead
            -----------        -------------------       ---------------
               I-B                  $14,835                  $ 33,939
               I-C                   11,321                    70,146
               I-D                    9,532                    59,958
               I-E                   51,674                   348,660
               I-F                   18,257                   119,340

      Affiliates  of the  Partnerships  operate  certain  of  the  Partnerships'
      properties and their policy is to bill the  Partnerships for all customary
      charges and cost reimbursements associated with their activities.



                                       24
<PAGE>

ITEM 2.     MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF FINANCIAL  CONDITION AND
            RESULTS OF OPERATIONS

USE OF FORWARD-LOOKING STATEMENTS AND ESTIMATES
- -----------------------------------------------

      This Quarterly Report contains  certain  forward-looking  statements.  The
      words "anticipate",  "believe",  "expect",  "plan", "intend",  "estimate",
      "project", "could", "may" and similar expressions are intended to identify
      forward-looking  statements.  Such statements reflect management's current
      views  with  respect  to future  events and  financial  performance.  This
      Quarterly Report also includes certain information,  which is, or is based
      upon,  estimates  and  assumptions.  Such  estimates and  assumptions  are
      management's  efforts to accurately reflect the condition and operation of
      the Partnerships.

      Use of  forward-looking  statements and estimates and assumptions  involve
      risks  and  uncertainties  which  include,  but are not  limited  to,  the
      volatility of oil and gas prices, the uncertainty of reserve  information,
      the operating risk associated  with oil and gas properties  (including the
      risk of personal injury,  death,  property  damage,  damage to the well or
      producing  reservoir,  environmental  contamination,  and other  operating
      risks), the prospect of changing tax and regulatory laws, the availability
      and capacity of  processing  and  transportation  facilities,  the general
      economic climate,  the supply and price of foreign imports of oil and gas,
      the level of consumer  product demand,  and the price and  availability of
      alternative  fuels.  Should  one or more of these  risks or  uncertainties
      occur or should  estimates  or  underlying  assumptions  prove  incorrect,
      actual  conditions or results may vary materially and adversely from those
      stated, anticipated, believed, estimated, and otherwise indicated.

GENERAL
- -------

      The  Partnerships  are engaged in the business of acquiring  and operating
      producing oil and gas properties located in the continental United States.
      In general, a Partnership acquired producing properties and did not engage
      in  development  drilling  or  enhanced  recovery  projects,  except as an
      incidental  part of the management of the producing  properties  acquired.
      Therefore,  the  economic  life  of  each  Partnership,  and  its  related
      Production Partnership, is limited to the period of time required to fully
      produce its acquired oil and gas  reserves.  The net proceeds from the oil
      and gas operations are distributed to the Limited Partners and the General
      Partner  in  accordance  with the terms of the  Partnerships'  partnership
      agreements.


                                       25
<PAGE>

LIQUIDITY AND CAPITAL RESOURCES
- -------------------------------

      The Partnerships began operations and investors were assigned their rights
      as Limited Partners,  having made capital contributions in the amounts and
      on the dates set forth below:

                                                           Limited
                                   Date of              Partner Capital
              Partnership        Activation              Contributions
              -----------     ------------------        ---------------

                 I-B          July 12, 1985               $11,957,700
                 I-C          December 20, 1985             8,884,900
                 I-D          March 4, 1986                 7,194,700
                 I-E          September 10, 1986           41,839,400
                 I-F          December 16, 1986            14,320,900

      In general,  the amount of funds  available for  acquisition  of producing
      properties was equal to the capital contributions of the Limited Partners,
      less 15% for sales  commissions and  organization and management fees. All
      of the Partnerships have fully invested their capital contributions.

      Net proceeds from the  operations  less  necessary  operating  capital are
      distributed to the Limited Partners on a quarterly basis. Revenues and net
      proceeds of a Partnership  are largely  dependent  upon the volumes of oil
      and gas sold and the  prices  received  for  such oil and gas.  While  the
      General  Partner cannot predict  future  pricing  trends,  it believes the
      working  capital  available as of  September  30, 1999 and the net revenue
      generated from future operations will provide  sufficient  working capital
      to meet current and future obligations.

      During  the  nine  months  ended  September  30,  1999,  the  I-B  and I-C
      Partnerships invested approximately $27,000 and $5,000,  respectively,  in
      the  recompletion  of the Unit 30-11 #1 well  located in  Jefferson  Davis
      County,  Mississippi  in order to improve the recovery of  reserves.  This
      recompletion  was successful.  The I-B and I-C  Partnerships  own 2.5% and
      0.5% working interests, respectively, in this well.

      During the nine months  ended  September  30,  1999,  the I-C  Partnership
      invested  approximately  $14,000 in the recompletion of the Ross Draw Unit
      #10 well located in Eddy County,  New Mexico in order to improve  recovery
      of reserves. This recompletion was successful.  The I-C Partnership owns a
      5.8% working interest in this well.


                                       26
<PAGE>

      In August 1999, the I-E and I-F Partnerships received insurance settlement
      proceeds of $675,000 and $472,500, respectively, for the costs incurred to
      drill the State Lease 8191 No. 4 well in St. Bernard Parish, Louisiana for
      the purpose of relieving pressure in another well which suffered a blowout
      during a workover attempt.  This new well was completed as a producing gas
      well in 1998. These amounts were included in the Partnerships' August 1999
      cash distributions.

      Pursuant to the terms of the Partnership Agreements, the Partnerships will
      terminate  on December  31,  1999.  However,  the  Partnership  Agreements
      provide that the General  Partner may extend the term of each  Partnership
      for up to five periods of two years each. The General  Partner has elected
      to extend the term of the I-D, I-E, and I-F Partnerships for the first two
      year extension period.  With respect to the I-B and I-C Partnerships,  the
      General  Partner  has  elected  to let  these  Partnerships  terminate  on
      December 31, 1999 pursuant to the terms of their Partnership Agreements.

      The  dissolution  of  the  I-B  and  I-C  Partnerships  (the  "Terminating
      Partnerships")  will be effective  on December  31, 1999.  Pursuant to the
      terms of the Partnership  Agreements,  the Terminating  Partnerships  will
      then be  liquidated.  The  liquidation  procedures  under the  Partnership
      Agreements  provide  that the General  Partner  will sell the  Terminating
      Partnerships'  properties and, in accordance therewith,  attempt to obtain
      the best price  available  for such  properties.  Pending such sales,  the
      General  Partner  will  continue to manage the  Terminating  Partnerships'
      properties. It is currently anticipated that the Terminating Partnerships'
      properties  will be  sold  during  the  first  quarter  of 2000 at an EBCO
      Auction tentatively scheduled to be held in Oklahoma City, Oklahoma.

      Gain or loss realized on the sale of the Terminating  Partnerships' assets
      will be credited to (in the case of gain) or charged  against (in the case
      of loss) each Partners'  capital account to the extent allocable under the
      Partnership   Agreement.   In  settling  the   Partners'   accounts   upon
      dissolution, the assets of the Terminating Partnership will be paid out as
      follows: (i) to third party creditors; (ii) to the General Partner for any
      expenses of the  Terminating  Partnership  paid by or payable to it to the
      extent it is entitled to  reimbursement  under the Partnership  Agreement;
      (iii) to all of the  Limited  Partners  in the  amount  equivalent  to the
      amount of their positive capital account balances (as adjusted pursuant to
      the  Partnership  Agreement)  on the  date  of  distribution;  (iv) to the
      General  Partner in the amount  equivalent  to the amount of its  positive
      capital account balance (as adjusted) on the date of distribution; and (v)
      the balance shall be paid to the


                                       27
<PAGE>

      Limited  Partners and General Partner in the same percentage  interests as
      cash  distributions  are  payable  under  the  Partnership  Agreement.  In
      addition, in the event that, following the final distribution, the General
      Partner has a deficit  balance in its capital  account  balance,  it shall
      contribute cash to the Terminating  Partnership necessary to eliminate the
      deficit  balance,  which amount would be distributed to the other Partners
      to the extent of their remaining positive capital account balances.


RESULTS OF OPERATIONS
- ---------------------

      GENERAL DISCUSSION

      The following  general  discussion  should be read in conjunction with the
      analysis  of results of  operations  provided  below.  The most  important
      variable  affecting the Partnerships'  revenues is the prices received for
      the  sale of oil and gas.  Due to the  volatility  of oil and gas  prices,
      forecasting  future prices is subject to great uncertainty and inaccuracy.
      Substantially  all of the Partnerships' gas reserves are being sold in the
      "spot market".  Prices on the spot market are subject to wide seasonal and
      regional pricing  fluctuations due to the highly competitive nature of the
      spot market. Such spot market sales are generally short-term in nature and
      are dependent upon the obtaining of  transportation  services  provided by
      pipelines. In addition, crude oil prices in 1998 and early 1999 were at or
      near their  lowest  level in the past decade due  primarily  to the global
      surplus of crude oil. Oil prices have since  rebounded  primarily due to a
      decrease in the global oil surplus as a result of production  curtailments
      by several  major oil producing  nations.  Management is unable to predict
      whether  future oil and gas prices will (i) stabilize,  (ii) increase,  or
      (iii) decrease.


                                       28
<PAGE>

      I-B PARTNERSHIP

      THREE MONTHS ENDED  SEPTEMBER  30, 1999 COMPARED TO THE THREE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                             Three Months Ended September 30,
                                             --------------------------------
                                                    1999             1998
                                                  --------         -------
      Oil and gas sales                           $154,468         $79,710
      Oil and gas production expenses             $ 23,509         $22,329
      Barrels produced                                 545             259
      Mcf produced                                  59,595          43,023
      Average price/Bbl                           $  15.75         $ 13.05
      Average price/Mcf                           $   2.45         $  1.77

      As shown in the table  above,  total oil and gas sales  increased  $74,758
      (93.8%) for the three months ended  September  30, 1999 as compared to the
      three months ended  September  30, 1998. Of this  increase,  approximately
      $29,000   was   related  to  an  increase  in  volumes  of  gas  sold  and
      approximately  $40,000 was related to an increase in the average  price of
      gas sold.  Volumes of oil and gas sold  increased  286  barrels and 16,572
      Mcf,  respectively,  for the three  months  ended  September  30,  1999 as
      compared to the three months  ended  September  30, 1998.  The increase in
      volumes of gas sold was primarily due to (i) the successful  completion of
      one well in late 1998 and another two wells in early 1999, (ii) successful
      workovers  performed during late 1998 and early 1999 on two wells in order
      to improve the recovery of reserves, and (iii) the successful recompletion
      of one  significant  well during 1999 in order to improve the  recovery of
      reserves. These increases were partially offset by a positive prior period
      volume adjustment made by the purchaser on one significant well during the
      three  months  ended  September  30,  1998.  The  I-B  Partnership  has an
      overriding royalty interest in each of the new wells.  Average oil and gas
      prices increased to $15.75 per barrel and $2.45 per Mcf, respectively, for
      the three months ended September 30, 1999 from $13.05 per barrel and $1.77
      per Mcf, respectively, for the three months ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  increased  $1,180  (5.3%) for the three  months  ended
      September  30, 1999 as compared to the three  months ended  September  30,
      1998.  This increase was primarily due to an increase in production  taxes
      associated  with the  increase in oil and gas sales,  which  increase  was
      partially  offset by a decrease  in repair  and  maintenance  expenses  on
      several wells during the three months ended September 30, 1999 as compared
      to the three months ended  September  30, 1998. As a percentage of oil and
      gas sales, these expenses decreased to 15.2% for the three months ended


                                       29
<PAGE>

      September  30, 1999 from 28.0% for the three  months ended  September  30,
      1998. This  percentage  decrease was primarily due to the increases in the
      average prices of oil and gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,036 (6.1%) for the three months ended  September 30, 1999 as
      compared to the three months ended  September 30, 1998. As a percentage of
      oil and gas sales,  this  expense  decreased to 11.7% for the three months
      ended  September 30, 1999 from 21.4% for the three months ended  September
      30, 1998. This  percentage  decrease was primarily due to the increases in
      the average prices of oil and gas sold.

      General and administrative  expenses decreased $1,154 (8.2%) for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      decreased to 8.3% for the three months ended September 30, 1999 from 17.6%
      for the three months ended September 30, 1998.  This  percentage  decrease
      was primarily due to the increase in oil and gas sales.

      NINE MONTHS  ENDED  SEPTEMBER  30, 1999  COMPARED TO THE NINE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                              Nine Months Ended September 30,
                                              -------------------------------
                                                   1999              1998
                                                 --------          --------
      Oil and gas sales                          $284,764          $199,910
      Oil and gas production expenses            $ 71,925          $ 58,268
      Barrels produced                              1,552               995
      Mcf produced                                130,020            95,902
      Average price/Bbl                          $  13.63          $  13.14
      Average price/Mcf                          $   2.03          $   1.95

      As shown in the table  above,  total oil and gas sales  increased  $84,854
      (42.4%) for the nine months  ended  September  30, 1999 as compared to the
      nine months ended  September  30, 1998.  Of this  increase,  approximately
      $66,000   was   related  to  an  increase  in  volumes  of  gas  sold  and
      approximately  $10,000 was related to an increase in the average  price of
      gas sold.  Volumes of oil and gas sold  increased  557  barrels and 34,118
      Mcf,  respectively,  for the  nine  months  ended  September  30,  1999 as
      compared to the nine months  ended  September  30,  1998.  The increase in
      volumes of gas sold was primarily due to (i) the successful  completion of
      one  well in late  1998 and  another  two  wells  in  early  1999 and (ii)
      successful  workovers  performed  during  late 1998 and early  1999 on two
      wells in order to improve the recovery of reserves,  which  increases were
      partially offset by a


                                       30
<PAGE>

      positive  prior  period  volume  adjustment  made by the  purchaser on one
      significant  well during the nine months ended September 30, 1998. The I-B
      Partnership has an overriding  royalty  interest in each of the new wells.
      Average  oil and gas prices  increased  to $13.63 per barrel and $2.03 per
      Mcf,  respectively,  for the nine  months  ended  September  30, 1999 from
      $13.14  per barrel and $1.95 per Mcf,  respectively,  for the nine  months
      ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  increased  $13,657  (23.4%) for the nine months  ended
      September  30, 1999 as compared to the nine  months  ended  September  30,
      1998. This increase was primarily due to workover expenses incurred on one
      significant  well during the nine months ended September 30, 1999 in order
      to improve the recovery of reserves. As a percentage of oil and gas sales,
      these expenses  decreased to 25.3% for the nine months ended September 30,
      1999  from  29.1% for the nine  months  ended  September  30,  1998.  This
      percentage  decrease  was  primarily  due to the  increases in the average
      prices of oil and gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,122  (2.9%) for the nine months ended  September 30, 1999 as
      compared to the nine months ended  September  30, 1998. As a percentage of
      oil and gas sales,  this  expense  decreased  to 14.1% for the nine months
      ended  September  30, 1999 from 19.5% for the nine months ended  September
      30, 1998. This  percentage  decrease was primarily due to the increases in
      the average prices of oil and gas sold.

      General and  administrative  expenses  increased  $765 (1.6%) for the nine
      months  ended  September  30, 1999 as  compared  to the nine months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      decreased to 17.1% for the nine months ended September 30, 1999 from 24.0%
      for the nine months ended September 30, 1998. This percentage decrease was
      primarily due to the increase in oil and gas sales.

      The Limited Partners have received cash  distributions  through  September
      30,  1999  totaling  $6,740,527  or 56.37% of  Limited  Partners'  capital
      contributions.


                                       31
<PAGE>

      I-C PARTNERSHIP

      THREE MONTHS ENDED  SEPTEMBER  30, 1999 COMPARED TO THE THREE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                             Three Months Ended September 30,
                                             --------------------------------
                                                    1999             1998
                                                  --------         -------
      Oil and gas sales                           $135,754         $95,155
      Oil and gas production expenses             $ 48,853         $52,940
      Barrels produced                               3,667           3,483
      Mcf produced                                  25,449          26,940
      Average price/Bbl                           $  18.14         $ 12.19
      Average price/Mcf                           $   2.72         $  1.96

      As shown in the table  above,  total oil and gas sales  increased  $40,599
      (42.7%) for the three months ended  September  30, 1999 as compared to the
      three months ended  September  30, 1998. Of this  increase,  approximately
      $22,000  and  $19,000,  respectively,  were  related to  increases  in the
      average  prices of oil and gas sold.  Volumes  of oil sold  increased  184
      barrels,  while  volumes  of gas sold  decreased  1,491  Mcf for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998.  The decrease in volumes of gas sold was primarily due
      to production difficulties on one significant well during the three months
      ended  September  30,  1999.  This  decrease was  partially  offset by new
      production on four wells  successfully  completed during 1999 in which the
      I-C Partnership has an overriding  royalty  interest.  Average oil and gas
      prices increased to $18.14 per barrel and $2.72 per Mcf, respectively, for
      the three months ended September 30, 1999 from $12.19 per barrel and $1.96
      per Mcf, respectively, for the three months ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $4,087  (7.7%) for the three  months  ended
      September  30, 1999 as compared to the three  months ended  September  30,
      1998. This decrease was primarily due to subsurface repair and maintenance
      expenses  incurred on one well during the three months ended September 30,
      1998.  This  decrease was  partially  offset by an increase in  production
      taxes  associated  with the increase in oil and gas sales. As a percentage
      of oil and gas  sales,  these  expenses  decreased  to 36.0% for the three
      months  ended  September  30, 1999 from 55.6% for the three  months  ended
      September  30, 1998.  This  percentage  decrease was  primarily due to the
      increases in the average prices of oil and gas sold.


                                       32
<PAGE>

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,142 (21.4%) for the three months ended September 30, 1999 as
      compared to the three months ended  September 30, 1998.  This increase was
      primarily due to downward  revisions in the estimates of remaining oil and
      gas reserves at December 31, 1998.  As a percentage  of oil and gas sales,
      this expense  decreased to 4.8% for the three months ended  September  30,
      1999  from  5.6% for the three  months  ended  September  30,  1998.  This
      decrease was primarily  due to the increases in the average  prices of oil
      and gas sold.

      General and  administrative  expenses  decreased $853 (3.4%) for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      decreased  to 18.1% for the three  months  ended  September  30, 1999 from
      26.7% for the three  months ended  September  30,  1998.  This  percentage
      decrease was primarily due to the increase in oil and gas sales.

      NINE MONTHS  ENDED  SEPTEMBER  30, 1999  COMPARED TO THE NINE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                              Nine Months Ended September 30,
                                              -------------------------------
                                                   1999              1998
                                                 --------          --------
      Oil and gas sales                          $324,129          $377,250
      Oil and gas production expenses            $119,858          $163,947
      Barrels produced                             11,285            10,865
      Mcf produced                                 75,472            99,032
      Average price/Bbl                          $  14.55          $  12.37
      Average price/Mcf                          $   2.12          $   2.45

      As shown in the table  above,  total oil and gas sales  decreased  $53,121
      (14.1%) for the nine months  ended  September  30, 1999 as compared to the
      nine months ended  September  30, 1998.  Of this  decrease,  approximately
      $58,000 was related to a decrease in volumes of gas sold and approximately
      $25,000 was related to a decrease in the average price of gas sold.  These
      decreases were partially  offset by an increase of  approximately  $25,000
      related to an increase in the  average  price of oil sold.  Volumes of oil
      sold increased 420 barrels, while volumes of gas sold decreased 23,560 Mcf
      for the nine  months  ended  September  30,  1999 as  compared to the nine
      months ended  September 30, 1998.  The decrease in volumes of gas sold was
      primarily due to production  difficulties on one  significant  well during
      the nine months ended September 30, 1999. This decrease was


                                       33
<PAGE>

      partially  offset by new production on four wells  successfully  completed
      during  1999  in  which  the I-C  Partnership  has an  overriding  royalty
      interest.  Average oil prices  increased to $14.55 per barrel for the nine
      months ended September 30, 1999 from $12.37 per barrel for the nine months
      ended  September 30, 1998.  Average gas prices  decreased to $2.12 per Mcf
      for the nine months  ended  September  30, 1999 from $2.45 per Mcf for the
      nine months ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $44,089  (26.9%) for the nine months  ended
      September  30, 1999 as compared to the nine  months  ended  September  30,
      1998.  This  decrease  was  primarily  due to (i) repair  and  maintenance
      expenses  incurred on two  significant  wells during the nine months ended
      September  30, 1998 and (ii) a negative  adjustment  of prior period lease
      operating expenses made by the operator on one significant well during the
      nine months  ended  September  30, 1999.  As a  percentage  of oil and gas
      sales,  these  expenses  decreased  to  37.0%  for the nine  months  ended
      September  30, 1999 from 43.5% for the nine  months  ended  September  30,
      1998. This percentage decrease was primarily due to the dollar decrease in
      oil and gas production expenses.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,230  (6.7%) for the nine months ended  September 30, 1999 as
      compared to the nine months ended  September  30, 1998.  This increase was
      primarily due to downward  revisions in the estimates of remaining oil and
      gas reserves at December 31, 1998. This increase was partially offset by a
      decrease in depreciation, depletion, and amortization primarily due to the
      decrease  in volumes of gas sold.  As a  percentage  of oil and gas sales,
      this expense  increased to 6.0% for the nine months  ended  September  30,
      1999  from  4.9%  for the nine  months  ended  September  30,  1998.  This
      percentage   increase  was  primarily  due  to  the  dollar   increase  in
      depreciation, depletion, and amortization.

      General and  administrative  expenses  increased  $906 (1.1%) for the nine
      months  ended  September  30, 1999 as  compared  to the nine months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 25.1% for the nine months ended September 30, 1999 from 21.4%
      for the nine months ended September 30, 1998. This percentage increase was
      primarily due to the decrease in oil and gas sales.

      The Limited Partners have received cash  distributions  through  September
      30,  1999  totaling  $8,295,300  or 93.36% of  Limited  Partners'  capital
      contributions.


                                       34
<PAGE>

      I-D PARTNERSHIP

      THREE MONTHS ENDED  SEPTEMBER  30, 1999 COMPARED TO THE THREE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                             Three Months Ended September 30,
                                             --------------------------------
                                                    1999             1998
                                                  --------         --------
      Oil and gas sales                           $250,390         $331,185
      Oil and gas production expenses             $ 39,158         $ 46,934
      Barrels produced                               2,577            2,497
      Mcf produced                                  82,545          155,204
      Average price/Bbl                           $  17.61         $  12.20
      Average price/Mcf                           $   2.48         $   1.94

      As shown in the table  above,  total oil and gas sales  decreased  $80,795
      (24.4%) for the three months ended  September  30, 1999 as compared to the
      three months ended  September  30, 1998. Of this  decrease,  approximately
      $141,000 was related to a decrease in volumes of gas sold,  which decrease
      was partially  offset by increases of  approximately  $14,000 and $45,000,
      respectively,  related to increases  in the average  prices of oil and gas
      sold. Volumes of oil sold increased 80 barrels,  while volumes of gas sold
      decreased  72,659 Mcf for the three  months  ended  September  30, 1999 as
      compared to the three months  ended  September  30, 1998.  The decrease in
      volumes of gas sold was primarily due to (i) positive  prior period volume
      adjustments  made by the  operators  on two  significant  wells during the
      three months ended September 30, 1998 and (ii) production  difficulties on
      one  significant  well during the three months ended  September  30, 1999.
      Average  oil and gas prices  increased  to $17.61 per barrel and $2.48 per
      Mcf,  respectively,  for the three  months ended  September  30, 1999 from
      $12.20 per barrel and $1.94 per Mcf,  respectively,  for the three  months
      ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $7,776  (16.6%) for the three  months ended
      September  30, 1999 as compared to the three  months ended  September  30,
      1998.  This decrease was  primarily due to a decrease in production  taxes
      associated  with the decrease in oil and gas sales. As a percentage of oil
      and gas sales,  these  expenses  increased  to 15.6% for the three  months
      ended  September 30, 1999 from 14.2% for the three months ended  September
      30, 1998.


                                       35
<PAGE>

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $5,299 (25.6%) for the three months ended September 30, 1999 as
      compared to the three months ended  September 30, 1998.  This decrease was
      primarily  due to the decrease in volumes of gas sold.  As a percentage of
      oil and gas sales,  this  expense  decreased  to 6.2% for the three months
      ended  September  30, 1999 from 6.3% for the three months ended  September
      30, 1998.

      General and  administrative  expenses  decreased $721 (3.3%) for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 8.4% for the three months ended  September 30, 1999 from 6.5%
      for the three months ended September 30, 1998.  This  percentage  increase
      was primarily due to the decrease in oil and gas sales.

      NINE MONTHS  ENDED  SEPTEMBER  30, 1999  COMPARED TO THE NINE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                              Nine Months Ended September 30,
                                              -------------------------------
                                                    1999             1998
                                                  --------         --------
      Oil and gas sales                           $572,783         $811,567
      Oil and gas production expenses             $115,512         $136,227
      Barrels produced                               7,386            8,830
      Mcf produced                                 234,026          343,955
      Average price/Bbl                           $  14.10         $  12.94
      Average price/Mcf                           $   2.00         $   2.03

      As shown in the table above,  total oil and gas sales  decreased  $238,784
      (29.4%) for the nine months  ended  September  30, 1999 as compared to the
      nine months ended  September  30, 1998.  Of this  decrease,  approximately
      $223,000 was related to a decrease in volumes of gas sold.  Volumes of oil
      and gas sold decreased  1,444 barrels and 109,929 Mcf,  respectively,  for
      the nine months  ended  September  30, 1999 as compared to the nine months
      ended  September  30,  1998.  The  decrease  in  volumes  of oil  sold was
      primarily due to production  difficulties on one  significant  well during
      the nine months ended  September 30, 1999.  The decrease in volumes of gas
      sold was primarily due to (i) production  difficulties  on one significant
      well during the nine months ended  September 30, 1999, (ii) positive prior
      period volume  adjustments made by the operators on two significant  wells
      during the nine months ended  September  30,  1998,  and (iii) the sale of
      several  wells  during  1998.  Average oil prices  increased to $14.10 per
      barrel for the nine months ended September 30, 1999 from $12.94 per barrel
      for the nine months ended September 30, 1998. Average gas prices decreased
      to $2.00 per Mcf for the nine months ended


                                       36
<PAGE>

      September 30, 1999 from $2.03 per Mcf for the nine months ended  September
      30, 1998.

      The I-D  Partnership  sold certain oil and gas properties  during the nine
      months ended  September 30, 1999 and recognized a $494 gain on such sales.
      Sales of oil and gas properties during the nine months ended September 30,
      1998  resulted  in  the  I-D  Partnership  recognizing  similar  gains  of
      $259,982.

      Oil and gas production  expenses  decreased  $20,715  (15.2%) for the nine
      months  ended  September  30, 1999 as  compared  to the nine months  ended
      September  30, 1998.  This decrease was primarily due to (i) a decrease in
      production  taxes  associated  with the  decrease in oil and gas sales and
      (ii) a negative  adjustment of prior period lease operating  expenses made
      by the  operator on one  significant  well  during the nine  months  ended
      September 30, 1999.  These  decreases  were  partially  offset by workover
      expenses  incurred on several wells during the nine months ended September
      30, 1999 in order to improve the recovery of reserves.  As a percentage of
      oil and gas sales,  these expenses  increased to 20.2% for the nine months
      ended  September  30, 1999 from 16.8% for the nine months ended  September
      30,  1998.  This  percentage  increase was  primarily  due to the workover
      expenses incurred during 1999.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $2,831  (5.9%) for the nine months ended  September 30, 1999 as
      compared to the nine months ended  September  30, 1998. As a percentage of
      oil and gas sales,  this  expense  increased  to 7.9% for the nine  months
      ended September 30, 1999 from 6.0% for the nine months ended September 30,
      1998.

      General and administrative  expenses remained  relatively constant for the
      nine months ended  September 30, 1999 as compared to the nine months ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 12.1% for the nine months ended  September 30, 1999 from 8.5%
      for the nine months ended September 30, 1998. This percentage increase was
      primarily due to the decrease in oil and gas sales.

      The Limited Partners have received cash  distributions  through  September
      30, 1999  totaling  $14,314,175  or 198.95% of Limited  Partners'  capital
      contributions.


                                       37
<PAGE>

      I-E PARTNERSHIP

      THREE MONTHS ENDED  SEPTEMBER  30, 1999 COMPARED TO THE THREE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                             Three Months Ended September 30,
                                             --------------------------------
                                                   1999             1998
                                                ----------       ----------
      Oil and gas sales                         $1,252,798       $1,332,007
      Oil and gas production expenses           $  269,934       $  306,185
      Barrels produced                              13,360           15,123
      Mcf produced                                 411,175          623,229
      Average price/Bbl                         $    19.65       $    10.56
      Average price/Mcf                         $     2.41       $     1.88

      As shown in the table  above,  total oil and gas sales  decreased  $79,209
      (5.9%) for the three  months ended  September  30, 1999 as compared to the
      three months ended  September  30, 1998. Of this  decrease,  approximately
      $18,000 and $399,000,  respectively,  were related to decreases in volumes
      of oil and gas sold, which decreases were partially offset by increases of
      approximately $121,000 and $217,000, respectively, related to increases in
      the  average  prices  of oil and gas  sold.  Volumes  of oil and gas  sold
      decreased  1,763  barrels and  212,054  Mcf,  respectively,  for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998.  The decrease in volumes of oil sold was primarily due
      to a negative prior period volume  adjustment made by the purchaser on one
      significant  well during the three  months  ended  September  30, 1999 and
      normal  declines in  production.  The  decrease in volumes of gas sold was
      primarily  due to positive  prior period  volume  adjustments  made by the
      purchasers  on several  wells during the three months ended  September 30,
      1998.  Average oil and gas prices increased to $19.65 per barrel and $2.41
      per Mcf, respectively,  for the three months ended September 30, 1999 from
      $10.56 per barrel and $1.88 per Mcf,  respectively,  for the three  months
      ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $36,251  (11.8%) for the three months ended
      September  30, 1999 as compared to the three  months ended  September  30,
      1998. This decrease was primarily due to (i) positive adjustments of prior
      period lease  operating  expenses  made by the  operators on several wells
      during the three  months  ended  September  30,  1998,  (ii) a decrease in
      production  taxes  associated with the decrease in oil and gas sales,  and
      (iii) a negative  adjustment of prior period  production taxes made by the
      purchaser on one significant  well during the three months ended September
      30, 1999. These decreases were partially  offset by (i) workover  expenses
      incurred on two wells during the three months ended


                                       38
<PAGE>

      September 30, 1999 in order to improve the recovery of reserves and (ii) a
      negative  adjustment of prior period lease operating  expenses made by the
      operator  on  another  significant  well  during  the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      decreased  to 21.5% for the three  months  ended  September  30, 1999 from
      23.0% for the three months ended September 30, 1998.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased $55,188 (26.2%) for the three months ended September 30, 1999 as
      compared to the three months ended  September 30, 1998.  This decrease was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  decreased to 12.4% for the
      three  months  ended  September  30, 1999 from 15.8% for the three  months
      ended September 30, 1998.  This  percentage  decrease was primarily due to
      the increases in the average prices of oil and gas sold.

      General and administrative  expenses decreased $3,897 (3.1%) for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 9.7% for the three months ended  September 30, 1999 from 9.4%
      for the three months ended September 30, 1998.

      NINE MONTHS  ENDED  SEPTEMBER  30, 1999  COMPARED TO THE NINE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                              Nine Months Ended September 30,
                                              ------------------------------
                                                   1999             1998
                                                ----------       ----------
      Oil and gas sales                         $2,906,835       $3,424,077
      Oil and gas production expenses           $  827,279       $  907,263
      Barrels produced                              44,371           48,982
      Mcf produced                               1,162,880        1,480,138
      Average price/Bbl                         $    14.71       $    12.35
      Average price/Mcf                         $     1.94       $     1.90

      As shown in the table above,  total oil and gas sales  decreased  $517,242
      (15.1%) for the nine months  ended  September  30, 1999 as compared to the
      nine months ended  September  30, 1998.  Of this  decrease,  approximately
      $57,000 and $604,000,  respectively,  were related to decreases in volumes
      of oil and gas sold, which decreases were partially offset by increases of
      approximately $105,000 and $39,000, respectively,  related to increases in
      the  average  prices  of oil and gas  sold.  Volumes  of oil and gas  sold
      decreased 4,611 barrels and 317,258 Mcf, respectively, for the nine months
      ended  September  30, 1999 as compared to the nine months ended  September
      30,  1998.  The decrease in volumes of gas sold was  primarily  due to (i)
      positive prior period


                                       39
<PAGE>

      volume adjustments made by the purchasers on several wells during the nine
      months ended  September 30, 1998 and (ii) the sale of several wells during
      1998.  Average oil and gas prices increased to $14.71 per barrel and $1.94
      per Mcf,  respectively,  for the nine months ended September 30, 1999 from
      $12.35  per barrel and $1.90 per Mcf,  respectively,  for the nine  months
      ended September 30, 1998.

      The I-E  Partnership  sold certain oil and gas properties  during the nine
      months  ended  September  30,  1999 and  recognized  a $1,587 gain on such
      sales.  Sales during the nine months ended  September 30, 1998 resulted in
      the I-E Partnership recognizing similar gains totaling $1,159,004.

      As discussed in Liquidity and Capital Resources above, the I-E Partnership
      recognized an insurance  settlement  in the amount of $675,000  during the
      nine months ended  September  30, 1999.  No similar  settlements  occurred
      during the nine months ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $79,984  (8.8%) for the nine  months  ended
      September  30, 1999 as compared to the nine  months  ended  September  30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      28.5% for the nine months ended September 30, 1999 from 26.5% for the nine
      months ended September 30, 1998.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $91,264 (17.4%) for the nine months ended September 30, 1999 as
      compared to the nine months ended  September  30, 1998.  This decrease was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  decreased to 14.9% for the
      nine months ended  September 30, 1999 from 15.3% for the nine months ended
      September 30, 1998.

      General and administrative  expenses remained  relatively constant for the
      nine months ended  September 30, 1999 as compared to the nine months ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 13.8% for the nine months ended September 30, 1999 from 11.6%
      for the nine months ended September 30, 1998. This percentage increase was
      primarily due to the decrease in oil and gas sales.

      The Limited Partners have received cash  distributions  through  September
      30, 1999  totaling  $54,842,552  or 131.08% of Limited  Partners'  capital
      contributions.


                                       40
<PAGE>

      I-F PARTNERSHIP

      THREE MONTHS ENDED  SEPTEMBER  30, 1999 COMPARED TO THE THREE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                             Three Months Ended September 30,
                                             --------------------------------
                                                    1999             1998
                                                  --------         --------
      Oil and gas sales                           $408,335         $409,569
      Oil and gas production expenses             $122,861         $123,328
      Barrels produced                               6,158            6,899
      Mcf produced                                 113,037          176,166
      Average price/Bbl                           $  19.40         $  10.59
      Average price/Mcf                           $   2.56         $   1.91

      As shown in the table  above,  total oil and gas  sales  decreased  $1,234
      (0.3%) for the three  months ended  September  30, 1999 as compared to the
      three months ended  September  30, 1998. Of this  decrease,  approximately
      $8,000 and $120,000, respectively, were related to decreases in volumes of
      oil and gas sold,  which  decreases were partially  offset by increases of
      approximately $54,000 and $73,000,  respectively,  related to increases in
      the  average  prices  of oil and gas  sold.  Volumes  of oil and gas  sold
      decreased 741 barrels and 63,129 Mcf,  respectively,  for the three months
      ended  September 30, 1999 as compared to the three months ended  September
      30,  1998.  The  decrease  in volumes of oil sold was  primarily  due to a
      negative  prior  period  volume  adjustment  made by the  purchaser on one
      significant  well during the three  months  ended  September  30, 1999 and
      normal  declines in  production.  The  decrease in volumes of gas sold was
      primarily  due to positive  prior period  volume  adjustments  made by the
      purchasers  on several  wells during the three months ended  September 30,
      1998.  Average oil and gas prices increased to $19.40 per barrel and $2.56
      per Mcf, respectively,  for the three months ended September 30, 1999 from
      $10.59 per barrel and $1.91 per Mcf,  respectively,  for the three  months
      ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $467  (0.4%)  for the  three  months  ended
      September  30, 1999 as compared to the three  months ended  September  30,
      1998. This decrease was primarily due to (i) positive adjustments of prior
      period lease  operating  expenses  made by the  operators on several wells
      during the three  months  ended  September  30,  1998,  (ii) a decrease in
      production  taxes  associated with the decrease in oil and gas sales,  and
      (iii) a negative  adjustment of prior period  production taxes made by the
      purchaser on one significant  well during the three months ended September
      30, 1999. These decreases were substantially offset by workover


                                       41
<PAGE>

      expenses incurred on two wells during the three months ended September 30,
      1999 in order to improve the recovery of reserves.  As a percentage of oil
      and gas sales,  these  expenses  remained  constant at 30.1% for the three
      months ended September 30, 1999 and 1998.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased $15,714 (23.9%) for the three months ended September 30, 1999 as
      compared to the three months ended  September 30, 1998.  This decrease was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  decreased to 12.2% for the
      three  months  ended  September  30, 1999 from 16.0% for the three  months
      ended September 30, 1998.  This  percentage  decrease was primarily due to
      the increases in the average prices of oil and gas sold.

      General and administrative  expenses decreased $1,250 (2.9%) for the three
      months  ended  September  30, 1999 as compared to the three  months  ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      decreased  to 10.2% for the three  months  ended  September  30, 1999 from
      10.5% for the three months ended September 30, 1998.

      NINE MONTHS  ENDED  SEPTEMBER  30, 1999  COMPARED TO THE NINE MONTHS ENDED
      SEPTEMBER 30, 1998.

                                              Nine Months Ended September 30,
                                              -------------------------------
                                                    1999            1998
                                                  --------       ----------
      Oil and gas sales                           $919,529       $1,096,504
      Oil and gas production expenses             $331,484       $  383,824
      Barrels produced                              21,118           23,093
      Mcf produced                                 296,248          396,874
      Average price/Bbl                           $  14.65       $    12.50
      Average price/Mcf                           $   2.06       $     2.04

      As shown in the table above,  total oil and gas sales  decreased  $176,975
      (16.1%) for the nine months  ended  September  30, 1999 as compared to the
      nine months ended  September  30, 1998.  Of this  decrease,  approximately
      $25,000 and $205,000,  respectively,  were related to decreases in volumes
      of oil and gas sold,  which decreases were partially offset by an increase
      of  approximately  $45,000  related to an increase in the average price of
      oil sold.  Volumes of oil and gas sold decreased 1,975 barrels and 100,626
      Mcf,  respectively,  for the  nine  months  ended  September  30,  1999 as
      compared to the nine months  ended  September  30,  1998.  The decrease in
      volumes of gas sold was primarily due to (i) positive  prior period volume
      adjustments made by the purchasers on several wells during the nine months
      ended  September  30, 1998 and (ii) the sale of several wells during 1998.
      Average oil and gas prices increased to $14.65 per


                                       42
<PAGE>

      barrel  and  $2.06  per  Mcf,  respectively,  for the  nine  months  ended
      September 30, 1999 from $12.50 per barrel and $2.04 per Mcf, respectively,
      for the nine months ended September 30, 1998.

      The I-F  Partnership  sold certain oil and gas properties  during the nine
      months ended  September 30, 1999 and recognized a $546 gain on such sales.
      Sales during the nine months ended  September 30, 1998 resulted in the I-F
      Partnership recognizing similar gains totaling $335,669.

      As discussed in Liquidity and Capital Resources above, the I-F Partnership
      recognized an insurance  settlement  in the amount of $472,500  during the
      nine months ended  September  30, 1999.  No similar  settlements  occurred
      during the nine months ended September 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $52,340  (13.6%) for the nine months  ended
      September  30, 1999 as compared to the nine  months  ended  September  30,
      1998. This decrease was primarily due to (i) workover expenses incurred on
      one  significant  well during the nine months ended  September 30, 1998 in
      order to improve the recovery of reserves,  (ii) positive  adjustments  of
      prior  period  lease  operating  expenses  made by the operator on several
      wells  during  the nine  months  ended  September  30,  1998,  and (iii) a
      decrease in production  taxes  associated with the decrease in oil and gas
      sales. As a percentage of oil and gas sales,  these expenses  increased to
      36.0% for the nine months ended September 30, 1999 from 35.0% for the nine
      months ended September 30, 1998.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $27,440 (17.0%) for the nine months ended September 30, 1999 as
      compared to the nine months ended  September  30, 1998.  This decrease was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales, this expense remained relatively constant
      at 14.6% for the nine months  ended  September  30, 1999 and 14.7% for the
      nine months ended September 30, 1998.

      General and administrative  expenses remained  relatively constant for the
      nine months ended  September 30, 1999 as compared to the nine months ended
      September 30, 1998. As a percentage of oil and gas sales,  these  expenses
      increased to 15.0% for the nine months ended September 30, 1999 from 12.5%
      for the nine months ended September 30, 1998. This percentage increase was
      primarily due to the decrease in oil and gas sales.


                                       43
<PAGE>

      The Limited Partners have received cash  distributions  through  September
      30, 1999  totaling  $18,255,664  or 127.48% of Limited  Partners'  capital
      contributions.

YEAR 2000 COMPUTER ISSUES
- -------------------------

      IN GENERAL

      The Year 2000 Issue ("Y2K")  refers to the inability of computer and other
      information   technology   systems  to  properly  process  date  and  time
      information,  stemming from the earlier programming  practice of using two
      digits  rather than four to  represent  the year in a date.  For  example,
      computer programs and imbedded chips that are date sensitive may recognize
      a date  using  (00) as the  year  1900  rather  than the  year  2000.  The
      consequence of Y2K is that computer and imbedded processing systems may be
      at risk of malfunctioning, particularly during the transition from 1999 to
      2000.

      The effects of Y2K are exacerbated by the  interdependence of computer and
      telecommunication  systems throughout the world. This interdependence also
      exists  among  the  Partnerships,   Samson  Investment   Company  and  its
      affiliates  ("Samson"),   and  their  vendors,   customers,  and  business
      partners, as well as with regulators.  The potential risks associated with
      Y2K for an oil and gas  production  company fall into three general areas:
      (i)  financial,   leasehold  and  administrative  computer  systems,  (ii)
      imbedded  systems in field process  control  units,  and (iii) third party
      exposures. As discussed below, General Partner does not believe that these
      risks will be material to the Partnerships' operations.

      The  Partnerships'  business  is  producing  oil and gas.  The  day-to-day
      production of the  Partnerships' oil and gas is not dependent on computers
      or equipment with imbedded chips. As further  discussed below,  management
      anticipates that the Partnerships'  daily business  activities will not be
      materially affected by Y2K.

      The  Partnerships  rely on Samson to provide all of their  operational and
      administrative  services on either a direct or indirect basis.  Samson has
      addressed each of the three Y2K areas  discussed above through a readiness
      process that:

      1.    increased the awareness of the issue among key employees;
      2.    identified areas of potential risk;
      3.    assessed the relative  impact of these risks and Samson's  ability
            to manage them; and
      4.    remediated the risks on a priority basis wherever possible.


                                       44
<PAGE>

      One  of  Samson   Investment   Company's   Executive  Vice  Presidents  is
      responsible  for  communicating  to its Board of Directors Y2K actions and
      for the  ultimate  implementation  of its Y2K plan.  He has  delegated  to
      Samson   Investment   Company's  Senior  Vice   President-Technology   and
      Administrative Services principal responsibility for ensuring Y2K
      compliance within Samson.

      Samson  has  been  planning  for  the  impact  of Y2K  on its  information
      technology  systems since 1993.  As of November 1, 1999,  Samson is in the
      final stages of implementation of a Y2K plan, as summarized below:


      FINANCIAL AND ADMINISTRATIVE SYSTEMS

      1. Awareness. Samson has alerted its officers, managers and supervisors of
      Y2K  issues  and asked them to have  their  employees  participate  in the
      identification  of potential Y2K risks which might  otherwise go unnoticed
      by higher level  employees  and  officers.  As a result,  awareness of the
      issue is considered high.

      2.  Risk   Identification.   Samson's  most   significant   financial  and
      administrative  systems  exposure is the Y2K status of the  accounting and
      land  administration  system used to collect and manage data for  internal
      management  decision making and for external  revenue and accounts payable
      purposes.  Other concerns include network  hardware and software,  desktop
      computing  hardware  and  software,  telecommunications,  and office space
      readiness.

      3. Risk  Assessment.  The failure to identify  and correct a material  Y2K
      problem could result in inaccurate or untimely  financial  information for
      management  decision-making  or cash flow and payment purposes,  including
      maintaining oil and gas leases.

      4.  Remediation.  Since 1993, Samson has been upgrading its accounting and
      land administration software. All of the Y2K upgrades have been completed.
      In addition,  in 1997 and 1998 Samson replaced or applied software patches
      to substantially all of its network and desktop software  applications and
      believes  them to be currently Y2K  compliant.  The costs of all such risk
      assessments and remediation were not material to the Partnerships.


                                       45
<PAGE>

      5. Contingency  Planning.  Notwithstanding the foregoing,  should there be
      significant   unanticipated   disruptions   in  Samson's   financial   and
      administrative systems, all of the accounting processes that are currently
      automated will need to be performed  manually.  Samson has communicated to
      its management  team the importance of having  adequate staff available to
      manually perform necessary functions to minimize disruptions.


      IMBEDDED SYSTEMS

      1.  Awareness.  Samson's  Y2K  program  has  involved  all levels of field
      personnel from production  foremen and higher.  Employees at all levels of
      the organization  have been asked to participate in the  identification of
      potential  Y2K risks,  which might  otherwise go unnoticed by higher level
      employees and officers of Samson, and as a result,  awareness of the issue
      is considered high.

      2. Risk  Identification.  Samson has inventoried all possible exposures to
      imbedded chips and systems. Such exposures can be classified as either (i)
      oil and gas production and  processing  equipment or (ii) office  machines
      such as faxes, copiers, phones, etc.

      With respect to oil and gas production and processing  equipment,  neither
      Samson nor the Partnerships operate offshore wells, significant processing
      plants, or wells with older electronic  monitoring  systems.  As a result,
      Samson's  inventory  identified less than 10  applications  using imbedded
      chips.  All of these have been tested by the  respective  vendors and have
      been found to be Y2K compliant or have been upgraded or replaced.

      Office machines have been tested by Samson and vendors and are believed to
      be compliant.

      3. Risk Assessment and Remediation.  The failure to identify and correct a
      material  Y2K  problem in an  imbedded  system  could  result in  outcomes
      ranging  from errors in data  reporting  to  curtailments  or shutdowns in
      production.  As noted above,  Samson has identified  less than 10 imbedded
      system  applications  all of which have been made  compliant  or replaced.
      None of these  applications  are  believed to be material to Samson or the
      Partnerships.   Samson  believes  that  sufficient  manual  processes  are
      available  to  minimize  any field  level  risk and that  there will be no
      material impact on the Partnerships with respect to these applications.


                                       46
<PAGE>

      4. Contingency Planning. Should material production disruptions occur as a
      result of Y2K  failures  in field  operations,  Samson  will  utilize  its
      existing  field  personnel in an attempt to avoid any  material  impact on
      operating cash flow. Samson is not able to quantify any potential exposure
      in the event of systems failure or inadequate manual alternatives.


      THIRD PARTY EXPOSURES

      1. Awareness.  Samson has advised  management to consider Y2K implications
      with its outside vendors, customers, and business partners. Management has
      been asked to participate in the  identification  of potential third party
      Y2K risks and, as a result, awareness of the issue is considered high.

      2. Risk Identification. Samson's most significant third party Y2K exposure
      is its  dependence  on third  parties for the receipt of revenues from oil
      and gas sales.  However,  virtually all of these purchasers are very large
      and sophisticated  companies.  Other Y2K concerns include the availability
      of  electric  power  to  Samson's  field  operations,   the  integrity  of
      telecommunication  systems,  and the  readiness  of  commercial  banks  to
      execute electronic fund transfers.

      3. Risk  Assessment.  Because of the high  awareness of the Y2K problem in
      the U.S.,  Samson  has not  undertaken  and does not plan to  undertake  a
      formal company wide plan to make inquiries of third parties on the subject
      of Y2K readiness. If it did so, Samson has no ability to require responses
      to such inquiries or to independently  verify their accuracy.  Samson has,
      however,  received  oral  assurances  from  its  significant  oil  and gas
      purchasers  of Y2K  compliance.  If  significant  disruptions  from  major
      purchasers were to occur,  however,  there could be a material and adverse
      impact  on  the  Partnerships'  results  of  operations,   liquidity,  and
      financial conditions.

      It is  important  to note that  third  party oil and gas  purchasers  have
      significant  incentives to avoid  disruptions  arising from a Y2K failure.
      For example,  most of these parties are under  contractual  obligations to
      purchase oil and gas or disperse revenues to Samson.  The failure to do so
      will result in  contractual  and statutory  penalties.  Therefore,  Samson
      believes  that it is  unlikely  that there will be  material  third  party
      non-compliance with purchase and remittance obligations as a result of Y2K
      issues.


                                       47
<PAGE>

      4.  Remediation.   Where  Samson  perceived  a  significant  risk  of  Y2K
      non-compliance by banks and other significant  vendors that would have had
      a material  impact on Samson's  business,  Samson  undertook joint testing
      during 1999, and any identified problems have been resolved.

      5. Contingency  Planning.  In the unlikely event that material  production
      disruptions  occur as a result  of Y2K  failures  of  third  parties,  the
      Partnerships' operating cash flow could be impacted. This contingency will
      be  factored   into   deliberations   on  the  level  of  quarterly   cash
      distributions paid out during any such period of cash flow disruption.


                                       48
<PAGE>


ITEM 3.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET
            RISK.

            The Partnerships do not hold any market risk sensitive instruments.


                                       49
<PAGE>

                           PART II. OTHER INFORMATION


ITEM 6.     EXHIBITS AND REPORTS ON FORM 8-K

(a)   Exhibits

      27.1              Financial  Data Schedule  containing  summary  financial
                        information   extracted   from  the  I-B   Partnership's
                        financial  statements  as of September  30, 1999 and for
                        the  nine  months  ended   September  30,  1999,   filed
                        herewith.

      27.2              Financial  Data Schedule  containing  summary  financial
                        information   extracted   from  the  I-C   Partnership's
                        financial  statements  as of September  30, 1999 and for
                        the  nine  months  ended   September  30,  1999,   filed
                        herewith.

      27.3              Financial  Data Schedule  containing  summary  financial
                        information   extracted   from  the  I-D   Partnership's
                        financial  statements  as of September  30, 1999 and for
                        the  nine  months  ended   September  30,  1999,   filed
                        herewith.

      27.4              Financial  Data Schedule  containing  summary  financial
                        information   extracted   from  the  I-E   Partnership's
                        financial  statements  as of September  30, 1999 and for
                        the  nine  months  ended   September  30,  1999,   filed
                        herewith.

      27.5              Financial  Data Schedule  containing  summary  financial
                        information   extracted   from  the  I-F   Partnership's
                        financial  statements  as of September  30, 1999 and for
                        the  nine  months  ended   September  30,  1999,   filed
                        herewith.

                        All other exhibits are omitted as inapplicable.

      (b)   Reports on From 8-K.

            Current Report on Form 8-K filed during the third quarter of 1999:

            Date of Event:                      September 27, 1999
            Date filed with the SEC:            September 28, 1999
            Items Included:                     Item 5 - Other Events
                                                Item 7 - Exhibits


                                       50
<PAGE>

                                   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, thereunto duly authorized.


                        GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                        GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                        GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                        GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                        GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F

                                    (Registrant)

                                    BY:   GEODYNE RESOURCES, INC.

                                          General Partner


Date:  November 5, 1999      By:       /s/Dennis R. Neill
                                       --------------------------------
                                             (Signature)
                                             Dennis R. Neill
                                             President


Date:  November 5, 1999      By:      /s/Patrick M. Hall
                                       --------------------------------
                                            (Signature)
                                            Patrick M. Hall
                                            Principal Accounting Officer



                                       51
<PAGE>
                                INDEX TO EXHIBITS


NUMBER      DESCRIPTION
- ------      -----------

27.1        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-B's
            financial  statements  as of  September  30,  1999  and for the nine
            months ended September 30, 1999, filed herewith.

27.2        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-C's
            financial  statements  as of  September  30,  1999  and for the nine
            months ended September 30, 1999, filed herewith.

27.3        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-D's
            financial  statements  as of  September  30,  1999  and for the nine
            months ended September 30, 1999, filed herewith.

27.4        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-E's
            financial  statements  as of  September  30,  1999  and for the nine
            months ended September 30, 1999, filed herewith.

27.5        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-F's
            financial  statements  as of  September  30,  1999  and for the nine
            months ended September 30, 1999, filed herewith.

            All other exhibits are omitted as inapplicable.

                                       52
<PAGE>

<TABLE> <S> <C>

<ARTICLE>                           5
<CIK>                               0000780200
<NAME>                              GEODYNE ENERGY INCOME LIMITED PTRSHP I-B

<S>                                   <C>
<PERIOD-TYPE>                       9-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
<CASH>                                    66,237
<SECURITIES>                                   0
<RECEIVABLES>                             81,868
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                         148,105
<PP&E>                                 6,537,193
<DEPRECIATION>                         6,274,857
<TOTAL-ASSETS>                           484,689
<CURRENT-LIABILITIES>                      4,176
<BONDS>                                        0
                          0
                                    0
<COMMON>                                       0
<OTHER-SE>                               457,023
<TOTAL-LIABILITY-AND-EQUITY>             484,689
<SALES>                                  284,764
<TOTAL-REVENUES>                         284,909
<CGS>                                          0
<TOTAL-COSTS>                            160,873
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                          124,036
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                      124,036
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                             124,036
<EPS-BASIC>                               9.72
<EPS-DILUTED>                                  0



</TABLE>

<TABLE> <S> <C>

<ARTICLE>                           5
<CIK>                               0000791067
<NAME>                              GEODYNE ENERGY INCOME LIMITED PTRSHP I-C

<S>                                   <C>
<PERIOD-TYPE>                       9-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
<CASH>                                    19,825
<SECURITIES>                                   0
<RECEIVABLES>                             99,363
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                         119,188
<PP&E>                                 3,659,027
<DEPRECIATION>                         3,483,662
<TOTAL-ASSETS>                           374,612
<CURRENT-LIABILITIES>                     12,719
<BONDS>                                        0
                          0
                                    0
<COMMON>                                       0
<OTHER-SE>                               348,966
<TOTAL-LIABILITY-AND-EQUITY>             374,612
<SALES>                                  324,129
<TOTAL-REVENUES>                         324,652
<CGS>                                          0
<TOTAL-COSTS>                            220,893
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                          103,759
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                      103,759
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                             103,759
<EPS-BASIC>                              11.01
<EPS-DILUTED>                                  0



</TABLE>

<TABLE> <S> <C>

<ARTICLE>                           5
<CIK>                               0000799178
<NAME>                              GEODYNE ENERGY INCOME LTD PTRSHIP I-D

<S>                                   <C>
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<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
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                           0
                                     0
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<EPS-BASIC>                               40.19
<EPS-DILUTED>                                   0



</TABLE>

<TABLE> <S> <C>

<ARTICLE>                           5
<CIK>                               0000806613
<NAME>                              GEODYNE ENERGY INCOME LTD PTRSHP I-E

<S>                                   <C>
<PERIOD-TYPE>                       9-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
<CASH>                                   670,194
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                          0
                                    0
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<EPS-BASIC>                              37.86
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</TABLE>

<TABLE> <S> <C>

<ARTICLE>                           5
<CIK>                               0000811031
<NAME>                              GEODYNE ENERGY INCOME LTD PTRSHP I-F

<S>                                   <C>
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<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
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<DEPRECIATION>                         6,841,031
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                          0
                                    0
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<NET-INCOME>                             791,267
<EPS-BASIC>                              45.67
<EPS-DILUTED>                                  0



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