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Note 4 - Segment Information - Segment Activity of Continuing Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Revenues, Total | $ 110,985 |  | $ 47,023 |  |  | $ 179,641 | $ 86,797 |
Production expense | 25,475 |  | 16,419 |  |  | 43,835 | 32,552 |
Exploration expense | 67 |  | 665 |  |  | 194 | 807 |
Depreciation, depletion and amortization | 8,191 |  | 5,810 |  |  | 12,864 | 9,958 |
General and administrative expense | 3,534 |  | 4,734 |  |  | 8,528 | 9,281 |
Bad debt expense and other | 571 |  | 395 |  |  | 1,063 | 496 |
Total operating costs and expenses | 37,838 |  | 28,023 |  |  | 66,484 | 53,094 |
Other operating expense, net | 0 |  | (126) |  |  | (5) | (486) |
Operating income | 73,147 |  | 18,874 |  |  | 113,152 | 33,217 |
Derivative instruments loss, net | (9,542) |  | (9,969) |  |  | (41,300) | (15,923) |
Interest (expense) income, net | (118) |  | 1 |  |  | (121) | 6 |
Other (expense) income, net | (2,111) |  | (164) |  |  | (2,807) | 4,416 |
Total other expense, net | (11,771) |  | (10,132) |  |  | (44,228) | (11,501) |
Income from continuing operations before income taxes | 61,376 |  | 8,742 |  |  | 68,924 | 21,716 |
Income tax (benefit) expense | 46,252 |  | 2,825 |  |  | 41,624 | 5,911 |
Income from continuing operations | 15,124 |  | 5,917 |  |  | 27,300 | 15,805 |
Loss from discontinued operations, net of tax | (20) |  | (33) |  |  | (32) | (52) |
Net Income (Loss) Attributable to Parent, Total | 15,104 | $ 12,164 | 5,884 |  | $ 9,869 | 27,268 | 15,753 |
Consolidated capital expenditures | 38,169 |  | 1,782 | [1] |  | 69,949 | 4,297 | [1]
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |
Revenues, Total | 0 |  | 0 |  |  | 0 | 0 |
Production expense | (60) |  | 9 |  |  | 0 | 9 |
Exploration expense | 0 |  | 0 |  |  | 0 | 0 |
Depreciation, depletion and amortization | 18 |  | 24 |  |  | 38 | 51 |
General and administrative expense | 2,859 |  | 4,410 |  |  | 7,161 | 8,588 |
Bad debt expense and other | 0 |  | 0 |  |  | 0 | 0 |
Total operating costs and expenses | 2,817 |  | 4,443 |  |  | 7,199 | 8,648 |
Other operating expense, net | 0 |  | 0 |  |  | 0 | (353) |
Operating income | (2,817) |  | (4,443) |  |  | (7,199) | (9,001) |
Derivative instruments loss, net | (9,542) |  | (9,969) |  |  | (41,300) | (15,923) |
Interest (expense) income, net | 40 |  | 1 |  |  | 43 | 6 |
Other (expense) income, net | (1,254) |  | (9) |  |  | (1,311) | (2,755) |
Total other expense, net | (10,756) |  | (9,977) |  |  | (42,568) | (18,672) |
Income from continuing operations before income taxes | (13,573) |  | (14,420) |  |  | (49,767) | (27,673) |
Income tax (benefit) expense | 9,828 |  | (3,220) |  |  | (7,633) | (3,569) |
Income from continuing operations | (23,401) |  | (11,200) |  |  | (42,134) | (24,104) |
Loss from discontinued operations, net of tax | (20) |  | (33) |  |  | (32) | (52) |
Net Income (Loss) Attributable to Parent, Total | (23,421) |  | (11,233) |  |  | (42,166) | (24,156) |
Consolidated capital expenditures | 67 |  | 0 | [1] |  | 67 | 0 | [1]
Gabon Segment [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |
Revenues, Total | 110,985 |  | 47,023 |  |  | 179,641 | 86,797 |
Production expense | 25,360 |  | 16,378 |  |  | 43,441 | 32,511 |
Exploration expense | 67 |  | 665 |  |  | 194 | 807 |
Depreciation, depletion and amortization | 8,173 |  | 5,786 |  |  | 12,826 | 9,907 |
General and administrative expense | 565 |  | 254 |  |  | 1,158 | 491 |
Bad debt expense and other | 571 |  | 395 |  |  | 1,063 | 496 |
Total operating costs and expenses | 34,736 |  | 23,478 |  |  | 58,682 | 44,212 |
Other operating expense, net | 0 |  | (126) |  |  | (5) | (133) |
Operating income | 76,249 |  | 23,419 |  |  | 120,954 | 42,452 |
Derivative instruments loss, net | 0 |  | 0 |  |  | 0 | 0 |
Interest (expense) income, net | (158) |  | 0 |  |  | (164) | 0 |
Other (expense) income, net | (856) |  | (156) |  |  | (1,494) | 7,172 |
Total other expense, net | (1,014) |  | (156) |  |  | (1,658) | 7,172 |
Income from continuing operations before income taxes | 75,235 |  | 23,263 |  |  | 119,296 | 49,624 |
Income tax (benefit) expense | 36,423 |  | 6,045 |  |  | 49,256 | 9,479 |
Income from continuing operations | 38,812 |  | 17,218 |  |  | 70,040 | 40,145 |
Loss from discontinued operations, net of tax | 0 |  | 0 |  |  | 0 | 0 |
Net Income (Loss) Attributable to Parent, Total | 38,812 |  | 17,218 |  |  | 70,040 | 40,145 |
Consolidated capital expenditures | 38,102 |  | 1,782 | [1] |  | 69,882 | 4,297 | [1]
Equatorial Guinea Segment [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |
Revenues, Total | 0 |  | 0 |  |  | 0 | 0 |
Production expense | 175 |  | 32 |  |  | 394 | 32 |
Exploration expense | 0 |  | 0 |  |  | 0 | 0 |
Depreciation, depletion and amortization | 0 |  | 0 |  |  | 0 | 0 |
General and administrative expense | 110 |  | 70 |  |  | 209 | 202 |
Bad debt expense and other | 0 |  | 0 |  |  | 0 | 0 |
Total operating costs and expenses | 285 |  | 102 |  |  | 603 | 234 |
Other operating expense, net | 0 |  | 0 |  |  | 0 | 0 |
Operating income | (285) |  | (102) |  |  | (603) | (234) |
Derivative instruments loss, net | 0 |  | 0 |  |  | 0 | 0 |
Interest (expense) income, net | 0 |  | 0 |  |  | 0 | 0 |
Other (expense) income, net | (1) |  | 1 |  |  | (2) | (1) |
Total other expense, net | (1) |  | 1 |  |  | (2) | (1) |
Income from continuing operations before income taxes | (286) |  | (101) |  |  | (605) | (235) |
Income tax (benefit) expense | 1 |  | 0 |  |  | 1 | 1 |
Income from continuing operations | (287) |  | (101) |  |  | (606) | (236) |
Loss from discontinued operations, net of tax | 0 |  | 0 |  |  | 0 | 0 |
Net Income (Loss) Attributable to Parent, Total | (287) |  | (101) |  |  | (606) | (236) |
Consolidated capital expenditures | $ 0 |  | $ 0 | [1] |  | $ 0 | $ 0 | [1]
[1] | Excludes assets acquired in the Sasol acquisition.

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