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Supplemental Oil And Gas Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Supplemental Oil And Gas Information [Abstract] |
Schedule Of Capitalized Costs Related To Oil And Gas Producing Activities |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Years Ended December 31,
﻿ |  | 2020 |  | 2019
﻿Oil and gas properties |  | $ | 6,752 |  | $ | 6,751
﻿Ceiling test impairment |  | $ | (3,855) |  | $ | —
﻿Oil and gas properties, net of ceiling test impairment |  | $ | 2,897 |  | $ | 6,751
﻿ |  |  |  |  |  |
﻿Unevaluated properties |  |  | — |  |  | —
﻿ |  |  |  |  |  |
﻿Accumulated depreciation, depletion and amortization |  |  | (2,935) |  |  | (2,366)
﻿Ceiling test impairment |  |  | 2,935 |  |  | —
﻿Accumulated depreciation, depletion and amortization, net of ceiling test impairment |  |  | — |  |  | (2,366)
﻿ |  |  |  |  |  |
﻿Oil and gas properties, net |  | $ | 2,897 |  | $ | 4,385
﻿
Schedule Of Oil And Gas Property Acquisition, Exploration And Development |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Years Ended December 31,
﻿ |  | 2020 |  | 2019
﻿Property acquisitions proved |  | $ | — |  | $ | —
﻿Property acquisitions unproved |  |  | 6 |  |  | 14
﻿Exploration cost |  |  | 1 |  |  | 491
﻿Development cost |  |  | 14 |  |  | 7
﻿Total |  | $ | 21 |  | $ | 512
﻿
Schedule Of Results Of Operations From Oil And Gas Producing Activities |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Years Ended December 31,
﻿ |  | 2020 |  | 2019
﻿Revenues |  | $ | 3,038 |  | $ | 4,911
﻿Production costs and taxes |  |  | (3,104) |  |  | (3,398)
﻿Depletion |  |  | (569) |  |  | (637)
﻿Income (loss) from oil and gas producing activities |  | $ | (635) |  | $ | 876
﻿
Schedule Of Net Proved Oil And Gas Reserves And The Changes In Net Proved Oil And Gas Reserves |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Oil (MBbl) |  | Gas (MMcf) |  | MBOE
﻿Proved reserves at December 31, 2018 |  | 1,094 |  | — |  | 1,094
﻿Revisions of previous estimates |  | (203) |  | — |  | (203)
﻿Improved recovery |  | — |  | — |  | —
﻿Purchase of reserves in place |  | — |  | — |  | —
﻿Extensions and discoveries |  | 8 |  | — |  | 8
﻿Production |  | (94) |  | — |  | (94)
﻿Sales of reserves in place |  | (2) |  | — |  | (2)
﻿Proved reserves at December 31, 2019 |  | 803 |  | — |  | 803
﻿Revisions of previous estimates |  | (200) |  | — |  | (200)
﻿Improved recovery |  | — |  | — |  | —
﻿Purchase of reserves in place |  | — |  | — |  | —
﻿Extensions and discoveries |  | — |  | — |  | —
﻿Production |  | (86) |  | — |  | (86)
﻿Sales of reserves in place |  | — |  | — |  | —
﻿Proved reserves at December 31, 2020 |  | 517 |  | — |  | 517
﻿ |  |  |  |  |  |
﻿Proved developed reserves at: |  |  |  |  |  |
﻿December 31, 2018 |  | 976 |  | — |  | 976
﻿December 31, 2019 |  | 803 |  | — |  | 803
﻿December 31, 2020 |  | 517 |  | — |  | 517
﻿ |  |  |  |  |  |
﻿Proved undeveloped reserves at: |  |  |  |  |  |
﻿December 31, 2018 |  | 118 |  | — |  | 118
﻿December 31, 2019 |  | — |  | — |  | —
﻿December 31, 2020 |  | — |  | — |  | —
﻿
Schedule Of Reserve Value By Category And The Respective Present Values, Before Income Taxes, Discounted At 10% As A Percentage Of Total Proved Reserves |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Year Ended 12/31/2020 |  | Year Ended 12/31/2019 |  | Year Ended 12/31/2018
﻿ |  | Oil |  | Gas |  | Total |  | Oil |  | Gas |  | Total |  | Oil |  | Gas |  | Total
﻿Total proved reserves year-end reserve report |  | $ | 2,897 |  |  | — |  | $ | 2,897 |  | $ | 8,365 |  |  | — |  | $ | 8,365 |  | $ | 13,976 |  |  | — |  | $ | 13,976
﻿Proved developed producing reserves (PDP) |  | $ | 2,598 |  |  | — |  | $ | 2,598 |  | $ | 7,592 |  |  | — |  | $ | 7,592 |  | $ | 12,534 |  |  | — |  | $ | 12,534
﻿% of PDP reserves to total proved reserves |  |  | 90% |  |  | — |  |  | 90% |  |  | 91% |  |  | — |  |  | 91% |  |  | 90% |  |  | — |  |  | 90%
﻿Proved developed non- producing reserves |  | $ | 299 |  |  | — |  | $ | 299 |  | $ | 773 |  |  | — |  | $ | 773 |  | $ | 739 |  |  | — |  | $ | 739
﻿% of PDNP reserves to total proved reserves |  |  | 10% |  |  | — |  |  | 10% |  |  | 9% |  |  | — |  |  | 9% |  |  | 5% |  |  | — |  |  | 5%
﻿Proved undeveloped reserves (PUD) |  | $ | — |  |  | — |  | $ | — |  | $ | — |  |  | — |  | $ | — |  | $ | 703 |  |  | — |  | $ | 703
﻿% of PUD reserves to total proved reserves |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5% |  |  | — |  |  | 5%
﻿
Schedule Of Standardized Measure Of Discounted Futures Net Cash Flows From Proved Oil And Gas Reserves |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Years Ended December 31,
﻿ |  | 2020 |  | 2019 |  | 2018
﻿Future cash inflows |  | $ | 18,036 |  | $ | 40,655 |  | $ | 65,871
﻿Future production costs and taxes |  |  | (12,664) |  |  | (24,829) |  |  | (35,877)
﻿Future development costs |  |  | (538) |  |  | (542) |  |  | (2,833)
﻿Future income tax expenses |  |  | — |  |  | — |  |  | —
﻿Future net cash flows |  |  | 4,834 |  |  | 15,284 |  |  | 27,161
﻿ |  |  |  |  |  |  |  |  |
﻿Discount at 10% for timing of cash flows |  |  | (1,937) |  |  | (6,919) |  |  | (13,185)
﻿Standardized measure of discounted future net cash flows |  | $ | 2,897 |  | $ | 8,365 |  | $ | 13,976
﻿
Schedule Of Changes In The Standardized Measure Of Discounted Future Net Cash Flows From Proved Oil And Gas Reserves |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Years Ended December 31,
﻿ |  | 2020 |  | 2019 |  | 2018
﻿Balance, beginning of year |  | $ | 8,365 |  | $ | 13,976 |  | $ | 8,170
﻿Sales, net of production costs and taxes |  |  | (210) |  |  | (1,646) |  |  | (2,611)
﻿Discoveries and extensions, net of costs |  |  | — |  |  | 154 |  |  | 798
﻿Purchase of reserves in place |  |  | — |  |  | — |  |  | 143
﻿Sale of reserves in place |  |  | — |  |  | (26) |  |  | —
﻿Net changes in prices and production costs |  |  | (2,893) |  |  | (3,348) |  |  | 4,304
﻿Revisions of quantity estimates |  |  | (2,353) |  |  | (3,058) |  |  | 2,180
﻿Previously estimated development cost incurred during the year |  |  | — |  |  | — |  |  | 210
﻿Changes in future development costs |  |  | (314) |  |  | 1,016 |  |  | 78
﻿Changes in timing and other |  |  | (389) |  |  | 86 |  |  | (4)
﻿Accretion of discount |  |  | 691 |  |  | 1,211 |  |  | 708
﻿Net change in income taxes |  |  | — |  |  | — |  |  | —
﻿Balance, end of year |  | $ | 2,897 |  | $ | 8,365 |  | $ | 13,976
﻿

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