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 June 30, 1998 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 73-1231998 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 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 June 30, December 31, 1998 1997 ------------ ------------ CURRENT ASSETS: Cash and cash equivalents $ 31,071 $ 77,028 Accounts receivable: Oil and gas sales 36,249 53,389 -------- -------- Total current assets $ 67,320 $130,417 NET OIL AND GAS PROPERTIES, utilizing the successful efforts method 305,173 327,137 DEFERRED CHARGE 99,262 99,262 -------- -------- $471,755 $556,816 ======== ======== LIABILITIES AND PARTNERS' CAPITAL (DEFICIT) CURRENT LIABILITIES: Accounts payable $ 4,934 $ 9,366 Gas imbalance payable 3,116 3,116 -------- -------- Total current liabilities $ 8,050 $ 12,482 ACCRUED LIABILITY $ 22,520 $ 22,520 PARTNERS' CAPITAL (DEFICIT): General Partner ($104,838) ($103,542) Limited Partners, issued and outstanding, 11,958 units 546,023 625,356 -------- -------- Total Partners' capital $441,185 $521,814 -------- -------- $471,755 $556,816 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 2 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B COMBINED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- --------- REVENUES: Oil and gas sales $59,328 $109,096 Interest income 210 206 Loss on sale of oil and gas properties ( 106) - ------- -------- $59,432 $109,302 COSTS AND EXPENSES: Lease operating $13,188 $ 30,214 Production tax 3,608 7,398 Depreciation, depletion, and amortization of oil and gas properties 11,551 15,336 General and administrative (Note 2) 12,875 17,673 ------- -------- $41,222 $ 70,621 ------- -------- NET INCOME $18,210 $ 38,681 ======= ======== GENERAL PARTNER - NET INCOME $ 1,362 $ 2,537 ======= ======== LIMITED PARTNERS - NET INCOME $16,848 $ 36,144 ======= ======== NET INCOME per unit $ 1.41 $ 3.02 ======= ======== UNITS OUTSTANDING 11,958 11,958 ======= ======== The accompanying condensed notes are an integral part of these combined financial statements. 3 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B COMBINED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- --------- REVENUES: Oil and gas sales $120,200 $191,538 Interest income 732 300 Loss on sale of oil and gas properties ( 106) - -------- -------- $120,826 $191,838 COSTS AND EXPENSES: Lease operating $ 29,009 $ 48,509 Production tax 6,930 12,880 Depreciation, depletion, and amortization of oil and gas properties 21,963 28,262 Impairment provision - 19,726 General and administrative (Note 2) 33,967 36,377 -------- -------- $ 91,869 $145,754 -------- -------- NET INCOME $ 28,957 $ 46,084 ======== ======== GENERAL PARTNER - NET INCOME $ 2,290 $ 4,209 ======== ======== LIMITED PARTNERS - NET INCOME $ 26,667 $ 41,875 ======== ======== NET INCOME per unit $ 2.23 $ 3.50 ======== ======== UNITS OUTSTANDING 11,958 11,958 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 4 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B COMBINED STATEMENTS OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- --------- CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 28,957 $46,084 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion, and amortization of oil and gas properties 21,963 28,262 Impairment provision - 19,726 Loss on sale of oil and gas properties 106 - Decrease in accounts receivable - oil and gas sales 17,140 3,746 Decrease in accounts payable ( 4,432) ( 8,514) -------- ------- Net cash provided by operating activities $ 63,734 $89,304 -------- ------- CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures ($ 105) ($ 2,223) -------- ------- Net cash used by investing activities ($ 105) ($ 2,223) -------- ------- CASH FLOWS FROM FINANCING ACTIVITIES: Cash distributions ($109,586) ($57,866) -------- ------- Net cash used by financing activities ($109,586) ($57,866) -------- ------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS ($ 45,957) $29,215 CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 77,028 13,805 -------- ------- CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 31,071 $43,020 ======== ======= The accompanying condensed notes are an integral part of these combined financial statements. 5 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C COMBINED BALANCE SHEETS (Unaudited) ASSETS June 30, December 31, 1998 1997 ----------- ------------ CURRENT ASSETS: Cash and cash equivalents $ 42,188 $141,699 Accounts receivable: Oil and gas sales 82,411 130,355 -------- -------- Total current assets $124,599 $272,054 NET OIL AND GAS PROPERTIES, utilizing the successful efforts method 321,738 334,734 DEFERRED CHARGE 110,943 110,943 -------- -------- $557,280 $717,731 ======== ======== LIABILITIES AND PARTNERS' CAPITAL (DEFICIT) CURRENT LIABILITIES: Accounts payable $ 15,802 $ 22,321 -------- -------- Total current liabilities $ 15,802 $ 22,321 ACCRUED LIABILITY $ 18,103 $ 18,103 PARTNERS' CAPITAL (DEFICIT): General Partner ($ 92,357) ($ 89,189) Limited Partners, issued and outstanding, 8,885 units 615,732 766,496 -------- -------- Total Partners' capital $523,375 $677,307 -------- -------- $557,280 $717,731 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 6 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C COMBINED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 -------- ---------- REVENUES: Oil and gas sales $95,699 $206,408 Interest income 703 1,258 Loss on sale of oil and gas properties ( 20) ( 4,907) ------- -------- $96,382 $202,759 COSTS AND EXPENSES: Lease operating $46,870 $ 83,502 Production tax 6,739 10,948 Depreciation, depletion, and amortization of oil and gas properties 5,618 10,730 General and administrative (Note 2) 24,549 28,076 ------- -------- $83,776 $133,256 ------- -------- NET INCOME $12,606 $ 69,503 ======= ======== GENERAL PARTNER - NET INCOME $ 819 $ 3,841 ======= ======== LIMITED PARTNERS - NET INCOME $11,787 $ 65,662 ======= ======== NET INCOME per unit $ 1.33 $ 7.39 ======= ======== UNITS OUTSTANDING 8,885 8,885 ======= ======== The accompanying condensed notes are an integral part of these combined financial statements. 7 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C COMBINED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- --------- REVENUES: Oil and gas sales $282,095 $471,975 Interest income 1,990 2,788 Loss on sale of oil and gas properties ( 20) ( 4,362) -------- -------- $284,065 $470,401 COSTS AND EXPENSES: Lease operating $ 93,931 $124,517 Production tax 17,076 26,599 Depreciation, depletion, and amortization of oil and gas properties 12,996 23,286 Impairment provision - 4,679 General and administrative (Note 2) 55,161 57,067 -------- -------- $179,164 $236,148 -------- -------- NET INCOME $104,901 $234,253 ======== ======== GENERAL PARTNER - NET INCOME $ 5,665 $ 12,692 ======== ======== LIMITED PARTNERS - NET INCOME $ 99,236 $221,561 ======== ======== NET INCOME per unit $ 11.17 $ 24.94 ======== ======== UNITS OUTSTANDING 8,885 8,885 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 8 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C COMBINED STATEMENTS OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- --------- CASH FLOWS FROM OPERATING ACTIVITIES: Net income $104,901 $234,253 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion, and amortization of oil and gas properties 12,996 23,286 Impairment provision - 4,679 Loss on sale of oil and gas properties 20 4,362 Decrease in accounts receivable - oil and gas sales 47,944 52,015 Decrease in accounts receivable - General Partner - 14,922 Increase (decrease) in accounts payable ( 6,519) 85,304 -------- -------- Net cash provided by operating activities $159,342 $418,821 -------- -------- CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures ($ 20) ($ 81,949) Proceeds from sale of oil and gas properties - 6,000 -------- -------- Net cash used by investing activities ($ 20) ($ 75,949) -------- -------- CASH FLOWS FROM FINANCING ACTIVITIES: Cash distributions ($258,833) ($434,262) -------- -------- Net cash used by financing activities ($258,833) ($434,262) -------- -------- NET DECREASE IN CASH AND CASH EQUIVALENTS ($ 99,511) ($ 91,390) CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 141,699 218,437 -------- -------- CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 42,188 $127,047 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 9 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D COMBINED BALANCE SHEETS (Unaudited) ASSETS June 30, December 31, 1998 1997 ----------- ------------ CURRENT ASSETS: Cash and cash equivalents $ 291,415 $ 274,109 Accounts receivable: Oil and gas sales 146,951 256,001 ---------- ---------- Total current assets $ 438,366 $ 530,110 NET OIL AND GAS PROPERTIES, utilizing the successful efforts method 675,583 714,156 DEFERRED CHARGE 104,793 104,793 ---------- ---------- $1,218,742 $1,349,059 ========== ========== LIABILITIES AND PARTNERS' CAPITAL (DEFICIT) CURRENT LIABILITIES: Accounts payable $ 10,166 $ 31,310 Gas imbalance payable 39,971 39,971 ---------- ---------- Total current liabilities $ 50,137 $ 71,281 ACCRUED LIABILITY $ 14,345 $ 14,345 PARTNERS' CAPITAL (DEFICIT): General Partner ($ 42,929) ($ 27,560) Limited Partners, issued and outstanding, 7,195 units 1,197,189 1,290,993 ---------- ---------- Total Partners' capital $1,154,260 $1,263,433 ---------- ---------- $1,218,742 $1,349,059 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 10 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D COMBINED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- ---------- REVENUES: Oil and gas sales $186,722 $332,197 Interest income 3,307 2,743 Gain on sale of oil and gas properties 108,746 15,824 -------- -------- $298,775 $350,764 COSTS AND EXPENSES: Lease operating $ 26,529 $ 48,093 Production tax 13,884 19,814 Depreciation, depletion, and amortization of oil and gas properties 11,703 28,574 General and administrative (Note 2) 21,684 24,880 -------- -------- $ 73,800 $121,361 -------- -------- NET INCOME $224,975 $229,403 ======== ======== GENERAL PARTNER - NET INCOME $ 34,889 $ 37,999 ======== ======== LIMITED PARTNERS - NET INCOME $190,086 $191,404 ======== ======== NET INCOME per unit $ 26.42 $ 26.60 ======== ======== UNITS OUTSTANDING 7,195 7,195 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 11 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D COMBINED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 --------- ---------- REVENUES: Oil and gas sales $480,382 $805,114 Interest income 6,088 5,387 Gain on sale of oil and gas properties 255,796 15,824 -------- -------- $742,266 $826,325 COSTS AND EXPENSES: Lease operating $ 57,471 $ 77,334 Production tax 31,822 50,712 Depreciation, depletion, and amortization of oil and gas properties 27,588 60,287 Impairment provision - 61,790 General and administrative (Note 2) 47,567 49,367 -------- -------- $164,448 $299,490 -------- -------- NET INCOME $577,818 $526,835 ======== ======== GENERAL PARTNER - NET INCOME $ 89,622 $ 95,308 ======== ======== LIMITED PARTNERS - NET INCOME $488,196 $431,527 ======== ======== NET INCOME per unit $ 67.85 $ 59.98 ======== ======== UNITS OUTSTANDING 7,195 7,195 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 12 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D COMBINED STATEMENTS OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- ---------- CASH FLOWS FROM OPERATING ACTIVITIES: Net income $577,818 $526,835 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion, and amortization of oil and gas properties 27,588 60,287 Impairment provision - 61,790 Gain on sale of oil and gas properties ( 255,796) ( 15,824) Increase in accounts receivable - oil and gas sales 109,050 116,014 Decrease in accounts receivable - General Partner - ( 13,234) Decrease in accounts payable ( 21,144) ( 1,580) -------- -------- Net cash provided by operating activities $437,516 $734,288 -------- -------- CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures ($ 1,857) ($ 934) Proceeds from sale of oil and gas properties 268,638 16,238 -------- -------- Net cash provided by investing activities $266,781 $ 15,304 -------- -------- CASH FLOWS FROM FINANCING ACTIVITIES: Cash distributions ($686,991) ($816,514) -------- -------- Net cash used by financing activities ($686,991) ($816,514) -------- -------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS $ 17,306 ($ 66,922) CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 274,109 344,951 -------- -------- CASH AND CASH EQUIVALENTS AT END OF PERIOD $291,415 $278,029 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 13 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E COMBINED BALANCE SHEETS (Unaudited) ASSETS June 30, December 31, 1998 1997 ----------- ------------ CURRENT ASSETS: Cash and cash equivalents $1,125,855 $ 827,775 Accounts receivable: Oil and gas sales 626,604 994,354 Other - 69,917 ---------- ---------- Total current assets $1,752,459 $1,892,046 NET OIL AND GAS PROPERTIES, utilizing the successful efforts method 4,406,419 4,844,378 DEFERRED CHARGE 750,369 750,369 ---------- ---------- $6,909,247 $7,486,793 ========== ========== LIABILITIES AND PARTNERS' CAPITAL (DEFICIT) CURRENT LIABILITIES: Accounts payable $ 79,387 $ 257,524 Gas imbalance payable 135,884 135,884 ---------- ---------- Total current liabilities $ 215,271 $ 393,408 ACCRUED LIABILITY $ 138,356 $ 138,356 PARTNERS' CAPITAL (DEFICIT): General Partner ($ 291,665) ($ 228,434) Limited Partners, issued and outstanding, 41,839 units 6,847,285 7,183,463 ---------- ---------- Total Partners' capital $6,555,620 $6,955,029 ---------- ---------- $6,909,247 $7,486,793 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 14 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E COMBINED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- ---------- REVENUES: Oil and gas sales $1,026,695 $1,459,697 Interest income 12,920 9,045 Gain on sale of oil and gas properties 489,455 62,609 ---------- ---------- $1,529,070 $1,531,351 COSTS AND EXPENSES: Lease operating $ 241,285 $ 336,136 Production tax 70,829 96,141 Depreciation, depletion, and amortization of oil and gas properties 159,710 201,890 General and administrative (Note 2) 122,432 140,236 ---------- ---------- $ 594,256 $ 774,403 ---------- ---------- NET INCOME $ 934,814 $ 756,948 ========== ========== GENERAL PARTNER - NET INCOME $ 160,644 $ 140,450 ========== ========== LIMITED PARTNERS - NET INCOME $ 774,170 $ 616,498 ========== ========== NET INCOME per unit $ 18.51 $ 14.74 ========== ========== UNITS OUTSTANDING 41,839 41,839 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 15 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E COMBINED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- ---------- REVENUES: Oil and gas sales $2,092,070 $3,211,446 Interest income 22,299 16,924 Gain on sale of oil and gas properties 1,149,051 62,609 ---------- ---------- $3,263,420 $3,290,979 COSTS AND EXPENSES: Lease operating $ 456,139 $ 594,466 Production tax 144,939 217,165 Depreciation, depletion, and amortization of oil and gas properties 312,718 399,583 Impairment provision - 291,690 General and administrative (Note 2) 272,850 282,574 ---------- ---------- $1,186,646 $1,785,478 ---------- ---------- NET INCOME $2,076,774 $1,505,501 ========== ========== GENERAL PARTNER - NET INCOME $ 351,952 $ 320,065 ========== ========== LIMITED PARTNERS - NET INCOME $1,724,822 $1,185,436 ========== ========== NET INCOME per unit $ 41.23 $ 28.33 ========== ========== UNITS OUTSTANDING 41,839 41,839 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 16 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E COMBINED STATEMENTS OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ----------- ---------- CASH FLOWS FROM OPERATING ACTIVITIES: Net income $2,076,774 $1,505,501 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion, and amortization of oil and gas properties 312,718 399,583 Impairment provision - 291,690 Gain on sale of oil and gas properties ( 1,149,051) ( 62,609) Decrease in accounts receivable - oil and gas sales 367,750 370,021 Increase in accounts receivable - General Partner - ( 42,533) Decrease in accounts receivable - other 69,917 - Decrease in accounts payable ( 178,137) ( 19,624) ---------- ---------- Net cash provided by operating activities $1,499,971 $2,442,029 ---------- ---------- CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures ($ 5,120) ($ 68,233) Proceeds from sale of oil and gas properties 1,279,412 80,538 ---------- ---------- Net cash provided by investing activities $1,274,292 $ 12,305 ---------- ---------- CASH FLOWS FROM FINANCING ACTIVITIES: Cash distributions ($2,476,183) ($2,468,430) ---------- ---------- Net cash used by financing activities ($2,476,183) ($2,468,430) ---------- ---------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS $ 298,080 ($ 14,096) CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 827,775 894,887 ---------- ---------- CASH AND CASH EQUIVALENTS AT END OF PERIOD $1,125,855 $ 880,791 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 17 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F COMBINED BALANCE SHEETS (Unaudited) ASSETS June 30, December 31, 1998 1997 ----------- ------------ CURRENT ASSETS: Cash and cash equivalents $ 275,836 $ 251,220 Accounts receivable: Oil and gas sales 204,984 307,734 Other - 48,942 ---------- ---------- Total current assets $ 480,820 $ 607,896 NET OIL AND GAS PROPERTIES, utilizing the successful efforts method 1,261,665 1,457,908 DEFERRED CHARGE 501,016 501,016 ---------- ---------- $2,243,501 $2,566,820 ========== ========== LIABILITIES AND PARTNERS' CAPITAL (DEFICIT) CURRENT LIABILITIES: Accounts payable $ 37,923 $ 53,205 Gas imbalance payable 47,046 47,046 ---------- ---------- Total current liabilities $ 84,969 $ 100,251 ACCRUED LIABILITY $ 116,401 $ 116,401 PARTNERS' CAPITAL (DEFICIT): General Partner ($ 96,589) ($ 59,811) Limited Partners, issued and outstanding, 14,321 units 2,138,720 2,409,979 ---------- ---------- Total Partners' capital $2,042,131 $2,350,168 ---------- ---------- $2,243,501 $2,566,820 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 18 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F COMBINED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- ---------- REVENUES: Oil and gas sales $320,633 $528,523 Interest income 4,545 2,837 Gain on sale of oil and gas properties 45,507 46,356 -------- -------- $370,685 $577,716 COSTS AND EXPENSES: Lease operating $118,870 $170,574 Production tax 20,716 33,387 Depreciation, depletion, and amortization of oil and gas properties 47,513 63,335 General and administrative (Note 2) 42,403 48,548 -------- -------- $229,502 $315,844 -------- -------- NET INCOME $141,183 $261,872 ======== ======== GENERAL PARTNER - NET INCOME $ 27,147 $ 47,722 ======== ======== LIMITED PARTNERS - NET INCOME $114,036 $214,150 ======== ======== NET INCOME per unit $ 7.96 $ 14.95 ======== ======== UNITS OUTSTANDING 14,321 14,321 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 19 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F COMBINED STATEMENTS OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- ---------- REVENUES: Oil and gas sales $ 686,935 $1,128,873 Interest income 7,719 5,714 Gain on sale of oil and gas properties 333,266 46,356 ---------- ---------- $1,027,920 $1,180,943 COSTS AND EXPENSES: Lease operating $ 216,106 $ 299,049 Production tax 44,390 73,194 Depreciation, depletion, and amortization of oil and gas properties 95,892 126,646 Impairment provision - 114,631 General and administrative (Note 2) 93,876 97,259 ---------- ---------- $ 450,264 $ 710,779 ---------- ---------- NET INCOME $ 577,656 $ 470,164 ========== ========== GENERAL PARTNER - NET INCOME $ 98,915 $ 103,446 ========== ========== LIMITED PARTNERS - NET INCOME $ 478,741 $ 366,718 ========== ========== NET INCOME per unit $ 33.43 $ 25.61 ========== ========== UNITS OUTSTANDING 14,321 14,321 ========== ========== The accompanying condensed notes are an integral part of these combined financial statements. 20 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F COMBINED STATEMENTS OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1998 AND 1997 (Unaudited) 1998 1997 ---------- --------- CASH FLOWS FROM OPERATING ACTIVITIES: Net income $577,656 $470,164 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion, and amortization of oil and gas properties 95,892 126,646 Impairment provision - 114,631 Gain on sale of oil and gas properties ( 333,266) ( 46,356) Decrease in accounts receivable - oil and gas sales 102,750 115,246 Increase in accounts receivable - General Partner - ( 35,198) Decrease in accounts receivable - other 48,942 - Decrease in accounts payable ( 15,282) ( 292) -------- -------- Net cash provided by operating activities $476,692 $744,841 -------- -------- CASH FLOWS FROM INVESTING ACTIVITIES: Capital expenditures ($ 2,180) ($ 24,997) Proceeds from sale of oil and gas properties 435,797 58,027 -------- -------- Net cash provided by investing activities $433,617 $ 33,030 -------- -------- CASH FLOWS FROM FINANCING ACTIVITIES: Cash distributions ($885,693) ($835,338) -------- -------- Net cash used by financing activities ($885,693) ($835,338) -------- -------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS $ 24,616 ($ 57,467) CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 251,220 339,064 -------- -------- CASH AND CASH EQUIVALENTS AT END OF PERIOD $275,836 $281,597 ======== ======== The accompanying condensed notes are an integral part of these combined financial statements. 21 GEODYNE ENERGY INCOME I LIMITED PARTNERSHIPS CONDENSED NOTES TO THE COMBINED FINANCIAL STATEMENTS JUNE 30, 1998 (Unaudited) 1. ACCOUNTING POLICIES ------------------- The combined balance sheets as of June 30, 1998, combined statements of operations for the three and six months ended June 30, 1998 and 1997, and combined statements of cash flows for the six months ended June 30, 1998 and 1997 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 June 30, 1998, the combined results of operations for the three and six months ended June 30, 1998 and 1997, and the combined cash flows for the six months ended June 30, 1998 and 1997. 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, 1997. The results of operations for the period ended June 30, 1998 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 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 difference between asset cost and salvage value is charged to accumulated depreciation. 23 Statement of Financial Accounting Standards ("SFAS") No. 121, "Accounting for the Impairment of Long Lived Assets and Assets Held for Disposal", requires successful efforts companies, like the Partnerships, to evaluate the recoverability of the carrying costs of their proved oil and gas properties at the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of oil and gas properties. With respect to the Partnerships' oil and gas properties, this evaluation was performed for each field. SFAS No. 121, provides that if the unamortized costs of oil and gas properties for each field exceed the expected undiscounted future cash flows from such properties, the cost of the properties is written down to fair value, which is determined by using the discounted future cash flows from the properties. The Partnerships recorded a non-cash charge against earnings (impairment provision) during the six months ended June 30, 1997 pursuant to SFAS No. 121 as follows: Partnership Amount ----------- ----------- I-B $ 19,726 I-C 4,679 I-D 61,790 I-E 291,690 I-F 114,631 No such charge was recorded in the six months ended June 30, 1998. The risk that the Partnerships will be required to record such impairment provisions in the future increases when oil and gas prices are depressed. 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 June 30, 1998 the following payments were made to the General Partner or its affiliates by the Partnerships: Direct General Administrative Partnership and Administrative Overhead ----------- ------------------- --------------- I-B $1,562 $ 11,313 I-C 1,167 23,382 I-D 1,698 19,986 I-E 6,212 116,220 I-F 2,623 39,780 24 During the six months ended June 30, 1998 the following payments were made to the General Partner or its affiliates by the Partnerships: Direct General Administrative Partnership and Administrative Overhead ----------- ------------------- --------------- I-B $11,341 $ 22,626 I-C 8,397 46,764 I-D 7,595 39,972 I-E 40,410 232,440 I-F 14,316 79,560 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. 25 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. 26 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 June 30, 1998 and the net revenue generated from future operations will provide sufficient working capital to meet current and future obligations. The Partnerships' Statements of Cash Flows for the six months ended June 30, 1998 include proceeds from the sale of oil and gas properties during the six months ended June 30, 1998. These proceeds received during the first quarter were included in the Partnerships' cash distributions paid during May 1998, and the proceeds received during the second quarter will be included in the Partnerships' cash distributions to be paid in August 1998. It is possible that the Partnerships' repurchase values and future cash distributions could decline as a result of the disposition of these properties. On the other hand, the General Partner believes there will be beneficial operating efficiencies related to the Partnerships' remaining properties. This is primarily due to the fact that the properties sold generally bore a higher ratio of operating expenses as compared to reserves than the Partnerships' remaining properties. 27 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. Predicting future prices is very difficult. 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 are at or near their lowest level in the past decade due primarily to the global surplus of crude oil. Management is unable to predict whether future oil and gas prices will (i) stabilize, (ii) increase, or (iii) decrease. I-B PARTNERSHIP THREE MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE THREE MONTHS ENDED JUNE 30, 1997. Three Months Ended June 30, --------------------------- 1998 1997 ------- -------- Oil and gas sales $59,328 $109,096 Oil and gas production expenses $16,796 $ 37,612 Barrels produced 265 527 Mcf produced 28,541 37,735 Average price/Bbl $ 11.15 $ 18.83 Average price/Mcf $ 1.98 $ 2.63 As shown in the table above, total oil and gas sales decreased $49,768 (45.6%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Of this decrease, approximately $5,000 and $24,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $2,000 and $19,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 262 barrels and 9,194 Mcf, respectively, for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) the sale of one significant well in 1997 and (ii) a normal decline in production due to diminishing reserves on one significant well during the three months ended June 30, 1998. The decrease in volumes of gas sold resulted primarily 28 from (i) positive prior period volume adjustments by purchasers on two significant wells during the three months ended June 30, 1997, (ii) the sale of one significant well in 1997, and (iii) a normal decline in production due to diminishing reserves on one significant well during the three months ended June 30, 1998. Average oil and gas prices decreased to $11.15 per barrel and $1.98 per Mcf, respectively, for the three months ended June 30, 1998 from $18.83 per barrel and $2.63 per Mcf, respectively, for the three months ended June 30, 1997. Oil and gas production expenses (including lease operating expenses and production taxes) decreased $20,816 (55.3%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above, (ii) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997, (iii) workover expenses incurred on two significant wells during the three months ended June 30, 1997 in order to improve the recovery of reserves, and (iv) the sale of one significant well in 1997. As a percentage of oil and gas sales, these expenses decreased to 28.3% for the three months ended June 30, 1998 from 34.5% for the three months ended June 30, 1997. This percentage decrease was primarily due to the decrease in workover expenses discussed above. Depreciation, depletion, and amortization of oil and gas properties decreased $3,785 (24.7%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from the decreases in volumes of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30 1997. As a percentage of oil and gas sales, this expense increased to 19.5% for the three months ended June 30, 1998 from 14.1% for the three months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30 1997. General and administrative expenses decreased $4,798 (27.1%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from a decrease in professional fees for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 21.7% for the three months ended June 30, 1998 from 16.2% for the three months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. 29 SIX MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE SIX MONTHS ENDED JUNE 30, 1997. Six Months Ended June 30, ------------------------- 1998 1997 -------- -------- Oil and gas sales $120,200 $191,538 Oil and gas production expenses $ 35,939 $ 61,389 Barrels produced 736 1,113 Mcf produced 52,879 68,688 Average price/Bbl $ 13.17 $ 20.01 Average price/Mcf $ 2.09 $ 2.46 As shown in the table above, total oil and gas sales decreased $71,338 (37.2%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Of this decrease, approximately $7,000 and $39,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $5,000 and $20,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 377 barrels and 15,809 Mcf for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) the sale of one significant well in 1997 and (ii) a normal decline in production due to diminishing reserves on one significant well during the six months ended June 30, 1998. The decrease in volumes of gas sold resulted primarily from (i) the sale of two significant wells in 1997 and (ii) positive prior period volume adjustments by purchasers on several wells during the six months ended June 30, 1997. Average oil and gas prices decreased to $13.17 per barrel and $2.09 per Mcf, respectively, for the six months ended June 30, 1998 from $20.01 per barrel and $2.46 per Mcf, respectively, for the six months ended June 30, 1997. Oil and gas production expenses (including lease operating expenses and production taxes) decreased $25,450 (41.5%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above, (ii) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997, and (iii) workover expenses on one significant well during the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses decreased to 29.9% for the six months ended June 30, 1998 from 32.1% for the six months ended June 30, 1997. This percentage decrease was primarily due to the decrease in workover expenses discussed above. 30 Depreciation, depletion, and amortization of oil and gas properties decreased $6,299 (22.3%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from the decrease in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30 1997. As a percentage of oil and gas sales, this expense increased to 18.3% for the six months ended June 30, 1998 from 14.8% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The I-B Partnership recognized a non-cash charge against earnings of $19,726 during the six months ended June 30, 1997. Of this amount, $17,233 was related to the decline in oil and gas prices used to determine the recoverability of proved oil and gas reserves at March 31, 1997 and $2,493 was related to the writing off of unproved properties. These unproved properties were written off based on the General Partner's determination that it was unlikely that such properties would be developed due to the low oil and gas prices received over the prior several years and provisions in the I-B Partnership's partnership agreement which limit the level of permissible drilling activity. No similar charge was necessary during the three months ended June 30, 1998. General and administrative expenses decreased $2,410 (6.6%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 28.3% for the six months ended June 30, 1998 from 19.0 % for the six months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. The Limited Partners have received cash distributions through June 30, 1998 totaling $6,650,527 or 55.62% of Limited Partners' capital contributions. 31 I-C PARTNERSHIP THREE MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE THREE MONTHS ENDED JUNE 30, 1997. Three Months Ended June 30, --------------------------- 1998 1997 ------- -------- Oil and gas sales $95,699 $206,408 Oil and gas production expenses $53,609 $ 94,450 Barrels produced 3,143 5,288 Mcf produced 31,455 40,614 Average price/Bbl $ 11.45 $ 18.78 Average price/Mcf $ 1.90 $ 2.64 As shown in the table above, total oil and gas sales decreased $110,709 (53.6%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Of this decrease, approximately $40,000 and $24,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $23,000 and $23,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 2,145 barrels and 9,159 Mcf, respectively, for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from the sale of one significant well during 1997. The decrease in volumes of gas sold resulted primarily from a normal decline in production on one significant well during the three months ended June 30, 1998. Average oil and gas prices decreased to $11.45 per barrel and $1.90 per Mcf, respectively, for the three months ended June 31, 1998 from $18.78 per barrel and $2.64 per Mcf, respectively, for the three months ended June 30, 1997. Oil and gas production expenses (including lease operating expenses and production taxes) decreased $40,841 (43.2%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease was primarily due to (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above, (ii) the decreases in volumes of oil and gas sold for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997, and (iii) workover expenses incurred on three wells during the three months ended June 30, 1997 in order to improve the recovery of reserves. As a percentage of oil and gas sales, these expenses increased to 56.0% for the three months ended June 30, 1998 from 45.8% for the three months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold for the 32 three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $5,112 (47.6%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from the decreases in volumes of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, this expense remained relatively constant at 5.9% for the three months ended June 30, 1998 and 5.2% for the three months ended June 30, 1997. General and administrative expenses decreased $3,527 (12.6%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease was primarily due to decreased professional fees during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 25.7% for the three months ended June 30, 1998 from 13.6% for the three months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. SIX MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE SIX MONTHS ENDED JUNE 30, 1997. Six Months Ended June 30, ------------------------- 1998 1997 -------- -------- Oil and gas sales $282,095 $471,975 Oil and gas production expenses $111,007 $151,116 Barrels produced 7,382 11,222 Mcf produced 72,092 89,654 Average price/Bbl $ 12.45 $ 19.94 Average price/Mcf $ 2.64 $ 2.77 As shown in the table above, total oil and gas sales decreased $189,880 (40.2%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Of this decrease, approximately $77,000 and $49,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $55,000 and $9,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 3,840 barrels and 17,562 Mcf, respectively, for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from the sale of one significant well during 1997. The decrease in volumes of gas sold resulted primarily from a normal decline in production on another significant well during the six months ended June 33 30, 1998. Average oil and gas prices decreased to $12.45 per barrel and $2.64 per Mcf, respectively, for the six months ended June 30, 1998 from $19.94 per barrel and $2.77 per Mcf, respectively, for the six months ended June 30, 1997. Oil and gas production expenses (including lease operating expenses and production taxes) decreased $40,109 (26.5%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease was primarily due to (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above and (ii) the decreases in volumes of oil and gas sold for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 39.4% for the six months ended June 30, 1998 from 32.0% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $10,290 (44.2%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, this expense remained relatively constant at 4.6% for the six months ended June 30, 1998 and 4.9% for the six months ended June 30, 1997. The I-C Partnership recognized a non-cash charge against earnings of $4,679 during the six months ended June 30, 1997 primarily related to the decline in oil and gas prices used to determine the recoverability of proved oil and gas reserves at March 31, 1997. No similar charge was necessary during the six months ended June 30, 1998. General and administrative expenses decreased $1,906 (3.3%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 19.6% for the six months ended June 30, 1998 from 12.1% for the six months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. The Limited Partners have received cash distributions through June 30, 1998 totaling $8,131,300 or 91.52% of Limited Partners' capital contributions. 34 I-D PARTNERSHIP THREE MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE THREE MONTHS ENDED JUNE 30, 1997. Three Months Ended June 30, --------------------------- 1998 1997 -------- -------- Oil and gas sales $186,722 $332,197 Oil and gas production expenses $ 40,413 $ 67,907 Barrels produced 2,913 3,700 Mcf produced 78,709 124,332 Average price/Bbl $ 11.95 $ 17.98 Average price/Mcf $ 1.93 $ 2.14 As shown in the table above, total oil and gas sales decreased $145,475 (43.8%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Of this decrease, approximately $14,000 and $97,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $18,000 and $16,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 787 barrels and 45,623 Mcf, respectively, for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from a normal decline in production on one significant well during the three months ended June 30, 1998. The decrease in volumes of gas sold resulted primarily from normal declines in production on three significant wells during the three months ended June 30, 1998. Average oil and gas prices decreased to $11.95 per barrel and $1.93 per Mcf, respectively, for the three months ended June 30, 1998 from $17.98 per barrel and $2.14 per Mcf, respectively, for the three months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-D Partnership sold certain oil and gas properties during the three months ended June 30, 1998 and recognized a $108,746 gain on such sales. Similar sales during the three months ended June 30, 1997 resulted in the I-D Partnership recognizing similar gains totaling $15,824. 35 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $27,494 (40.5%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above and (ii) the decreases in volumes of oil and gas sold for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses remained relatively constant at 21.6% for the three months ended June 30, 1998 and 20.4% for the three months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $16,871 (59.0%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the three months ended June 3, 1998 as compared to the three months ended June 30, 1997 and (ii) upward revisions in the estimates of remaining oil and gas reserves at December 31, 1997. As a percentage of oil and gas sales, this expense decreased to 6.3% for the three months ended June 30, 1998 from 8.6% for the three months ended June 30, 1997. This percentage decrease was primarily due to the upward revisions in the estimates of remaining oil and gas reserves discussed above. General and administrative expenses decreased $3,196 (12.8%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease was primarily a result of a decrease in professional fees during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 11.6% for the three months ended June 30, 1998 from 7.5% for the three months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. 36 SIX MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE SIX MONTHS ENDED JUNE 30, 1997. Six Months Ended June 30, ------------------------- 1998 1997 -------- -------- Oil and gas sales $480,382 $805,114 Oil and gas production expenses $ 89,293 $128,046 Barrels produced 6,333 8,519 Mcf produced 188,751 258,049 Average price/Bbl $ 13.23 $ 20.66 Average price/Mcf $ 2.10 $ 2.44 As shown in the table above, total oil and gas sales decreased $324,732 (40.3%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Of this decrease, approximately $45,000 and $169,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $47,000 and $64,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 2,186 barrels and 69,298 Mcf, respectively, for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from normal declines in production on two significant wells during the six months ended June 30, 1998. The decrease in volumes of gas sold resulted primarily from normal declines in production on several wells during the six months ended June 30, 1998. Average oil and gas prices decreased to $13.23 per barrel and $2.10 per Mcf, respectively, for the six months ended June 30, 1998 from $20.66 per barrel and $2.44 per Mcf, respectively, for the six months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-D Partnership sold certain oil and gas properties during the six months ended June 30, 1998 and recognized a $255,796 gain on such sales. Similar sales during the six months ended June 30, 1997 resulted in the I-D Partnership recognizing similar gains totaling $15,824. 37 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $38,753 (30.3%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above and (ii) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 18.6% for the six months ended June 30, 1998 from 15.9% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $32,699 (54.2%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997 and (ii) upward revisions in the estimates of remaining oil and gas reserves at December 31, 1997. As a percentage of oil and gas sales, this expense decreased to 5.7% for the six months ended June 30, 1998 from 7.5% for the six months ended June 30, 1997. The I-D Partnership recognized a non-cash charge against earnings of $61,790 during the six months ended June 30, 1998. Of this amount, $12,290 was related to the decline in oil and gas prices used to determine the recoverability of proved oil and gas reserves at March 31, 1997 and $49,500 was related to the writing off of unproved properties. These unproved properties were written off based on the General Partner's determination that it was unlikely that such properties would be developed due to the low oil and gas prices received over the prior several years and provisions in the I-D Partnership's partnership agreement which limit the level of permissible drilling activity. No similar charge was necessary during the six months ended June 30, 1998. General and administrative expenses decreased $1,800 (3.6%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 9.9% for the six months ended June 30, 1998 from 6.1% for the six months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. 38 The Limited Partners have received cash distributions through June 30, 1998 totaling $13,496,175 or 187.58% of Limited Partners' capital contributions. I-E PARTNERSHIP THREE MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE THREE MONTHS ENDED JUNE 30, 1997. Three Months Ended June 30, --------------------------- 1998 1997 ---------- ---------- Oil and gas sales $1,026,695 $1,459,697 Oil and gas production expenses $ 312,114 $ 432,277 Barrels produced 17,876 20,166 Mcf produced 434,138 516,555 Average price/Bbl $ 11.53 $ 18.39 Average price/Mcf $ 1.89 $ 2.11 As shown in the table above, total oil and gas sales decreased $433,002 (29.7%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Of this decrease, approximately $42,000 and $174,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $122,000 and $95,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 2,290 barrels and 82,417 Mcf, respectively, for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) normal declines in production on two significant wells during the three months ended June 30, 1998 and (ii) the sale of one significant well in 1997. The decrease in volumes of gas sold resulted primarily from normal declines in production on two significant wells during the three months ended June 30, 1998. Average oil and gas prices decreased to $11.53 per barrel and $1.89 per Mcf, respectively, for the three months ended June 30, 1998 from $18.39 per barrel and $2.11 per Mcf, respectively, for the three months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-E Partnership sold certain oil and gas properties during the three months ended June 30, 1998 and recognized a $489,455 gain on such sales. Similar sales during the three months ended June 30, 1997 resulted in the I-E Partnership recognizing similar gains totaling $62,609. 39 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $120,163 (27.8%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above, (ii) the decreases in volumes of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997, and (iii) decreased general repair and maintenance expenses on two significant wells during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 30.4% for the three months ended June 30, 1998 from 29.6% for the three months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997, which increase was partially offset by the decreased general repair and maintenance expenses discussed above. Depreciation, depletion, and amortization of oil and gas properties decreased $42,180 (20.9%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997 and (ii) upward revisions in the estimates of remaining gas reserves at December 31, 1997. As a percentage of oil and gas sales, this expense increased to 15.6% for the three months ended June 30, 1998 from 13.8% for the three months ended June 30, 1997. General and administrative expenses decreased $17,804 (12.7%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease was primarily due to a decrease in professional fees during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 11.9% for the three months ended June 30, 1998 from 9.6% for the three months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. 40 SIX MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE SIX MONTHS ENDED JUNE 30, 1997. Six Months Ended June 30, ------------------------- 1998 1997 ---------- ---------- Oil and gas sales $2,092,070 $3,211,446 Oil and gas production expenses $ 601,078 $ 811,631 Barrels produced 33,859 39,108 Mcf produced 856,909 1,027,197 Average price/Bbl $ 13.15 $ 20.63 Average price/Mcf $ 1.92 $ 2.34 As shown in the table above, total oil and gas sales decreased $1,119,376 (34.9%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Of this decrease, approximately $108,000 and $399,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $253,000 and $359,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 5,249 barrels and 170,288 Mcf, respectively, for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) the sale of one significant well in 1997 and (ii) normal declines in production on several wells during the six months ended June 30, 1998. The decrease in volumes of gas sold resulted primarily from (i) a negative prior period volume adjustment made by the purchaser on one significant well during the six months ended June 30, 1998 and (ii) normal declines in production on several wells during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Average oil and gas prices decreased to $13.15 per barrel and $1.92 per Mcf, respectively, for the six months ended June 30, 1998 from $20.63 per barrel and $2.34 per Mcf, respectively, for the six months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-E Partnership sold certain oil and gas properties during the six months ended June 30, 1998 and recognized a $1,149,051 gain on such sales. Similar sales during the six months ended June 30, 1997 resulted in the I-E Partnership recognizing similar gains totaling $62,609. 41 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $210,553 (25.9%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) a decrease in production taxes associated with the decrease in oil and gas sales discussed above and (ii) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 28.7% for the six months ended June 30, 1998 from 25.3% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $86,865 (21.7%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997 and (ii) upward revisions in the estimates of remaining gas reserves at December 31, 1997. As a percentage of oil and gas sales, this expense increased to 14.9% for the six months ended June 30, 1998 from 12.4% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The I-E Partnership recognized a non-cash charge against earnings of $291,690 during the six months ended June 30, 1997. Of this amount, $59,728 was related to the decline in oil and gas prices used to determine the recoverability of proved oil and gas reserves at March 31, 1997 and $231,962 was related to the writing off of unproved properties. These unproved properties were written off based on the General Partner's determination that it was unlikely that such properties would be developed due to the low oil and gas prices received over the prior several years and provisions in the I-E Partnership's partnership agreement which limit the level of permissible drilling activity. No similar charge was necessary during the six months ended June 30, 1998. General and administrative expenses decreased $9,724 (3.4%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 13.0% for the six months ended June 30, 1998 from 8.8% for the six months 42 ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. The Limited Partners have received cash distributions through June 30, 1998 totaling $51,797,552 or 123.80% of Limited Partners' capital contributions. I-F PARTNERSHIP THREE MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE THREE MONTHS ENDED JUNE 30, 1997. Three Months Ended June 30, --------------------------- 1998 1997 -------- -------- Oil and gas sales $320,633 $528,523 Oil and gas production expenses $139,586 $203,961 Barrels produced 8,327 9,760 Mcf produced 107,539 145,741 Average price/Bbl $ 11.74 $ 18.21 Average price/Mcf $ 2.07 $ 2.41 As shown in the table above, total oil and gas sales decreased $207,890 (39.3%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Of this decrease, approximately $26,000 and $92,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $54,000 and $36,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 1,433 barrels and 38,202 Mcf, respectively, for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) normal declines in production due to diminishing reserves on two significant wells during the three months ended June 30, 1998 and (ii) the sale of one significant well during 1997. The decrease in volumes of gas sold resulted primarily from (i) a negative prior period volume adjustment by a purchaser on one significant well during the three months ended June 30, 1998 and (ii) the sale of several wells during the six months ended June 30, 1998. Average oil and gas prices decreased to $11.74 per barrel and $2.07 per Mcf, respectively, for the three months ended June 30, 1998 from $18.21 per barrel and $2.41 per Mcf, respectively, for the three months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-F Partnership sold certain oil and gas properties during the three months ended June 30, 1998 and recognized a $45,507 gain on such sales. Similar sales during the three months ended June 30, 1997 resulted in the I-F Partnership recognizing similar gains totaling $46,356. 43 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $64,375 (31.6%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the three months ended March 31, 1998 as compared to the three months ended March 31, 1997 and (ii) a decrease in production taxes associated with the decrease in oil and gas sales discussed above. As a percentage of oil and gas sales, these expenses increased to 43.5% for the three months ended June 30, 1998 from 38.6% for the three months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $15,822 (25.0%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease resulted primarily from the decreases in volumes of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, this expense increased to 14.8% for the three months ended June 30, 1998 from 12.0% for the three months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. General and administrative expenses decreased $6,145 (12.7%) for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. This decrease was primarily due to a decrease in professional fees for the three months ended June 30, 1998 as compared to the three months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 13.2% for the three months ended June 30, 1998 from 9.2% for the three months ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. 44 SIX MONTHS ENDED JUNE 30, 1998 AS COMPARED TO THE SIX MONTHS ENDED JUNE 30, 1997. Six Months Ended June 30, ------------------------- 1998 1997 -------- ---------- Oil and gas sales $686,935 $1,128,873 Oil and gas production expenses $260,496 $ 372,243 Barrels produced 16,194 19,522 Mcf produced 220,708 291,400 Average price/Bbl $ 13.32 $ 20.65 Average price/Mcf $ 2.14 $ 2.49 As shown in the table above, total oil and gas sales decreased $441,938 (39.1%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Of this decrease, approximately $69,000 and $176,000, respectively, were related to decreases in volumes of oil and gas sold and approximately $119,000 and $78,000, respectively, were related to decreases in the average prices of oil and gas sold. Volumes of oil and gas sold decreased 3,328 barrels and 70,692 Mcf, respectively, for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The decrease in volumes of oil sold resulted primarily from (i) normal declines in production on several significant wells due to diminishing reserves during the six months ended June 30, 1998 and (ii) the sale of one significant well in 1997. The decrease in volumes of gas sold resulted primarily from (i) negative prior period volume adjustments on one significant well made by a purchaser during the six months ended June 30, 1998 and (ii) positive prior period volume adjustments on two significant wells made by a purchaser during the six months ended June 30, 1997. Average oil and gas prices decreased to $13.32 per barrel and $2.14 per Mcf, respectively, for the six months ended June 30, 1998 from $20.65 per barrel and $2.49 per Mcf, respectively, for the six months ended June 30, 1997. As discussed in Liquidity and Capital Resources above, the I-F Partnership sold certain oil and gas properties during the six months ended June 30, 1998 and recognized a $333,266 gain on such sales. Similar sales during the three months ended June 30, 1997 resulted in the I-F Partnership recognizing similar gains totaling $46,356. 45 Oil and gas production expenses (including lease operating expenses and production taxes) decreased $111,747 (30.0%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from (i) the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997 and (ii) a decrease in production taxes associated with the decrease in oil and gas sales discussed above. As a percentage of oil and gas sales, these expenses increased to 37.9% for the six months ended June 30, 1998 from 33.0% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. Depreciation, depletion, and amortization of oil and gas properties decreased $30,754 (24.3%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. This decrease resulted primarily from the decreases in volumes of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, this expense increased to 14.0% for the six months ended June 30, 1998 from 11.2% for the six months ended June 30, 1997. This percentage increase was primarily due to the decreases in the average prices of oil and gas sold during the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. The I-F Partnership recognized a non-cash charge against earnings of $114,631 during the six months ended June 30, 1997. Of this amount, $20,908 was related to the decline in oil and gas prices used to determine the recoverability of proved oil and gas reserves at March 31, 1997 and $93,723 was related to the writing off of unproved properties. These unproved properties were written off based on the General Partner's determination that it was unlikely that such properties would be developed due to the low oil and gas prices received over the prior several years and provisions in the I-F Partnership's partnership agreement which limit the level of permissible drilling activity. No similar charge was necessary during the six months ended June 30, 1998. General and administrative expenses decreased $3,383 (3.5%) for the six months ended June 30, 1998 as compared to the six months ended June 30, 1997. As a percentage of oil and gas sales, these expenses increased to 13.7% for the six months ended June 30, 1998 from 8.6% for the six months 46 ended June 30, 1997. This percentage increase was primarily due to the decrease in oil and gas sales discussed above. The Limited Partners have received cash distributions through June 30, 1998 totaling $17,512,664 or 122.29% of Limited Partners' capital contributions. 47 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 June 30, 1998 and for the six months ended June 30, 1998, filed herewith. 27.2 Financial Data Schedule containing summary financial information extracted from the I-C Partnership's financial statements as of June 30, 1998 and for the six months ended June 30, 1998, filed herewith. 27.3 Financial Data Schedule containing summary financial information extracted from the I-D Partnership's financial statements as of June 30, 1998 and for the six months ended June 30, 1998, filed herewith. 27.4 Financial Data Schedule containing summary financial information extracted from the I-E Partnership's financial statements as of June 30, 1998 and for the six months ended June 30, 1998, filed herewith. 27.5 Financial Data Schedule containing summary financial information extracted from the I-F Partnership's financial statements as of June 30, 1998 and for the six months ended June 30, 1998, filed herewith. All other exhibits are omitted as inapplicable. (b) Reports on Form 8-K. None. 48 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: August 13, 1998 By: /s/Dennis R. Neill -------------------------------- (Signature) Dennis R. Neill President Date: August 13, 1998 By: /s/Patrick M. Hall -------------------------------- (Signature) Patrick M. Hall Principal Accounting Officer 49 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 June 30, 1998 and for the six months ended June 30, 1998, 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 June 30, 1998 and for the six months ended June 30, 1998, 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 June 30, 1998 and for the six months ended June 30, 1998, 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 June 30, 1998 and for the six months ended June 30, 1998, 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 June 30, 1998 and for the six months ended June 30, 1998, filed herewith. All other exhibits are omitted as inapplicable. 50