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v3.21.2

Segment Information (Segment Activity) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Revenues-crude oil and natural gas sales | $ 55,899,000 | $ 18,256,000 | $ 142,696,000 | $ 54,619,000
Depreciation, depletion and amortization | 6,970,000 | 2,212,000 | 16,928,000 | 8,116,000
Impairment of proved crude oil and natural gas properties | 0 | 0 | 0 | 30,625,000
Bad debt expense and other | 318,000 | 151,000 | 814,000 | 1,140,000
Other operating income (expense), net | 46,000 | (37,000) | (440,000) | (883,000)
Operating income (loss) | 20,030,000 | 4,678,000 | 53,247,000 | (22,971,000)
Derivative instruments gain (loss), net | (5,147,000) |  | (21,070,000) | 6,583,000
Other, net | (328,000) | 147,000 | 4,088,000 | 163,000
Income tax expense (benefit) | (17,183,000) | (2,759,000) | (11,272,000) | 28,470,000
Additions to crude oil and natural gas properties and equipment - accrual | 6,696,000 | (315,000) | 10,993,000 | 10,296,000
Operating Segments [Member] | Gabon Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues-crude oil and natural gas sales | 55,899,000 | 18,256,000 | 142,696,000 | 54,619,000
Depreciation, depletion and amortization | 6,953,000 | 1,946,000 | 16,860,000 | 7,790,000
Impairment of proved crude oil and natural gas properties |  |  |  | 30,625,000
Bad debt expense and other |  | 151,000 | 814,000 | 1,140,000
Other operating income (expense), net |  |  | (440,000) | (883,000)
Operating income (loss) | 22,834,000 | 6,957,000 | 64,933,000 | (17,622,000)
Other, net |  |  | 7,207,000 |
Income tax expense (benefit) | 436,000 | (2,464,000) | 8,396,000 | 19,302,000
Additions to crude oil and natural gas properties and equipment - accrual | 6,696,000 | (306,000) | 10,993,000 | 10,305,000
Operating Segments [Member] | Equatorial Guinea Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) | (271,000) | (95,000) | (505,000) | (289,000)
Other, net |  |  | (2,000) |
Income tax expense (benefit) |  | 1,000 | 1,000 | 1,000
Corporate and Other [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion and amortization | 17,000 | 266,000 | 68,000 | 326,000
Operating income (loss) | (2,533,000) | (2,184,000) | (11,181,000) | (5,060,000)
Derivative instruments gain (loss), net | (5,147,000) |  | (21,070,000) | 6,583,000
Other, net |  |  | (3,117,000) |
Income tax expense (benefit) | $ (17,619,000) | (296,000) | $ (19,669,000) | 9,167,000
Additions to crude oil and natural gas properties and equipment - accrual |  | $ (9,000) |  | $ (9,000)

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