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Supplemental information on oil and gas activities (Schedule of Results of Operations for Oil and Gas Producing Activities) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | $ 1,040,125 | $ 688,543 | $ 393,692
Production costs, excluding depreciation |  |  |
Operating costs | (99,563) | (99,767) | (89,197)
Royalties and economic rights | (252,287) | (113,023) | (35,875)
Total production costs | (351,850) | (212,790) | (125,072)
Exploration expenses | (34,087) | (16,783) | (64,488)
Accretion expense | (2,641) | (3,140) | (4,276)
Impairment loss for non-financial assets |  | (4,334) | (99,889)
Depreciation, depletion and amortization | (88,964) | (78,479) | (106,164)
Results of operations before income tax | 562,583 | 373,017 | (6,197)
Income tax (expense) benefit | (196,744) | (120,669) | (24,862)
Results of oil and gas operations | 365,839 | 252,348 | (31,059)
Colombia [Member] |  |  |
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | 978,423 | 618,268 | 334,606
Production costs, excluding depreciation |  |  |
Operating costs | (78,323) | (72,043) | (61,866)
Royalties and economic rights | (249,303) | (106,341) | (30,453)
Total production costs | (327,626) | (178,384) | (92,319)
Exploration expenses | (28,424) | (11,276) | (12,493)
Accretion expense | (621) | (576) | (670)
Impairment loss for non-financial assets |  | 0 | 0
Depreciation, depletion and amortization | (72,386) | (54,588) | (56,720)
Results of operations before income tax | 549,366 | 373,444 | 172,404
Income tax (expense) benefit | (192,278) | (115,768) | (55,169)
Results of oil and gas operations | 357,088 | 257,676 | 117,235
Chile [Member] |  |  |
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | 29,196 | 21,471 | 21,704
Production costs, excluding depreciation |  |  |
Operating costs | (12,961) | (10,280) | (9,491)
Royalties and economic rights | (1,165) | (770) | (753)
Total production costs | (14,126) | (11,050) | (10,244)
Exploration expenses | (116) | (4,509) | (50,301)
Accretion expense | (1,516) | (1,319) | (1,358)
Impairment loss for non-financial assets |  | (17,641) | (81,967)
Depreciation, depletion and amortization | (12,754) | (12,806) | (32,233)
Results of operations before income tax | 684 | (25,854) | (154,399)
Income tax (expense) benefit | (103) | 3,878 | 23,160
Results of oil and gas operations | 581 | (21,976) | (131,239)
Brazil [Member] |  |  |
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | 19,873 | 20,109 | 12,783
Production costs, excluding depreciation |  |  |
Operating costs | (3,753) | (2,954) | (2,827)
Royalties and economic rights | (1,546) | (1,642) | (1,049)
Total production costs | (5,299) | (4,596) | (3,876)
Exploration expenses |  | 0 | (1,000)
Accretion expense | (504) | (535) | (867)
Impairment loss for non-financial assets |  | 0 | (1,717)
Depreciation, depletion and amortization | (1,509) | (2,933) | (2,488)
Results of operations before income tax | 12,561 | 12,045 | 2,835
Income tax (expense) benefit | (4,271) | (4,095) | (964)
Results of oil and gas operations | 8,290 | 7,950 | 1,871
Argentina [Member] |  |  |
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | 1,962 | 28,695 | 24,599
Production costs, excluding depreciation |  |  |
Operating costs | (1,306) | (14,490) | (15,013)
Royalties and economic rights | (273) | (4,270) | (3,620)
Total production costs | (1,579) | (18,760) | (18,633)
Exploration expenses | (779) | (998) | (694)
Accretion expense |  | (710) | (1,381)
Impairment loss for non-financial assets |  | 13,307 | (16,205)
Depreciation, depletion and amortization |  | (8,152) | (14,723)
Results of operations before income tax | (396) | 13,382 | (27,037)
Income tax (expense) benefit |  | (4,684) | 8,111
Results of oil and gas operations | (396) | $ 8,698 | $ (18,926)
Ecuador [Member] |  |  |
Disclosure Of Supplemental information on oil and gas activities [Line Items] |  |  |
Revenue | 10,671 |  |
Production costs, excluding depreciation |  |  |
Operating costs | (3,220) |  |
Royalties and economic rights | 0 |  |
Total production costs | (3,220) |  |
Exploration expenses | (4,768) |  |
Accretion expense | 0 |  |
Depreciation, depletion and amortization | (2,315) |  |
Results of operations before income tax | 368 |  |
Income tax (expense) benefit | (92) |  |
Results of oil and gas operations | $ 276 |  |

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