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v3.22.0.1

Segment Information (Segment Activity) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Revenues-crude oil and natural gas sales | $ 199,075,000 | $ 67,176,000 | $ 84,521,000
Depreciation, depletion and amortization | 21,060,000 | 9,382,000 | 7,083,000
Gain on revision of asset retirement obligations |  |  | (379,000)
Impairment of proved crude oil and natural gas properties | 0 | 30,625,000 |
Bad debt (recovery) expense and other | 875,000 | 1,165,000 | (341,000)
Other operating expense, net | (440,000) | (1,669,000) | (4,421,000)
Operating income (loss) | 79,100,000 | (27,263,000) | 21,193,000
Derivative instruments gain (loss), net | (22,826,000) | 6,577,000 | (446,000)
Interest income (expense), net |  | 155,000 | 733,000
Other, net | 3,494,000 | 129,000 | (438,000)
Income tax expense (benefit) | (22,156,000) | 27,681,000 | 23,890,000
Additions to crude oil and natural gas properties and equipment - accrual | 79,221,000 | 10,494,000 | 22,173,000
Operating Segments [Member] | Gabon Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues-crude oil and natural gas sales | 199,075,000 | 67,176,000 | 84,521,000
Depreciation, depletion and amortization | 20,972,000 | 9,028,000 | 6,825,000
Gain on revision of asset retirement obligations |  |  | (379,000)
Impairment of proved crude oil and natural gas properties |  | 30,625,000 |
Bad debt (recovery) expense and other | 875,000 | 1,165,000 | (341,000)
Other operating expense, net | (440,000) | (1,669,000) | (4,456,000)
Operating income (loss) | 93,191,000 | (17,261,000) | 35,049,000
Interest income (expense), net |  |  | 5,000
Other, net | 6,925,000 | 194,000 | (230,000)
Income tax expense (benefit) | 12,392,000 | 16,204,000 | 20,311,000
Additions to crude oil and natural gas properties and equipment - accrual | 79,169,000 | 10,503,000 | 22,116,000
Operating Segments [Member] | Equatorial Guinea Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Operating income (loss) | (853,000) | (431,000) | (438,000)
Other, net | (3,000) | 3,000 | (3,000)
Income tax expense (benefit) | 1,000 | 1,000 | 12,000
Corporate and Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Depreciation, depletion and amortization | 88,000 | 354,000 | 258,000
Other operating expense, net |  |  | 35,000
Operating income (loss) | (13,238,000) | (9,571,000) | (13,418,000)
Derivative instruments gain (loss), net | (22,826,000) | 6,577,000 | (446,000)
Interest income (expense), net |  | 155,000 | 728,000
Other, net | (3,428,000) | (68,000) | (205,000)
Income tax expense (benefit) | (34,549,000) | 11,476,000 | 3,567,000
Additions to crude oil and natural gas properties and equipment - accrual | $ 52,000 | $ (9,000) | $ 57,000

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