v3.26.1
Business Segment Information - Schedule of Business Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Segment Reporting Information [Line Items]      
Oil and gas revenue $ 370,728 $ 290,135  
Other income, net 169 296  
Total revenues and other income 370,897 290,431  
Oil and gas production 130,595 167,308  
Exploration expenses 19,744 9,669  
General and administrative 27,710 26,255  
Depletion, depreciation and amortization 119,873 120,667  
Interest and other financing costs, net 58,802 51,842  
Derivatives, net 251,996 6,732  
Other expenses, net 3,264 1,989  
Total costs and expenses 611,984 384,462  
Income (loss) before income taxes (241,087) (94,031)  
Income tax expense (benefit) (15,513) 16,575  
Net loss (225,574) (110,606)  
Consolidated capital expenditures, net 91,479 86,188  
Property and equipment, net 3,367,489 4,413,056 $ 3,733,784
Total assets 4,783,442 5,269,414 $ 4,696,626
Operating Segments | Ghana      
Segment Reporting Information [Line Items]      
Oil and gas revenue 201,264 151,253  
Other income, net 169 252  
Total revenues and other income 201,433 151,505  
Oil and gas production 28,424 41,310  
Exploration expenses 3 45  
General and administrative 3,939 3,285  
Depletion, depreciation and amortization 53,517 44,817  
Interest and other financing costs, net 11,763 11,141  
Derivatives, net 0 0  
Other expenses, net 154,948 5,196  
Total costs and expenses 252,594 105,794  
Income (loss) before income taxes (51,161) 45,711  
Income tax expense (benefit) (17,548) 16,676  
Net loss (33,613) 29,035  
Consolidated capital expenditures, net 69,611 18,958  
Property and equipment, net 987,893 963,977  
Total assets 3,353,013 3,652,535  
Operating Segments | Equatorial Guinea      
Segment Reporting Information [Line Items]      
Oil and gas revenue 22,395 34,407  
Other income, net 0 0  
Total revenues and other income 22,395 34,407  
Oil and gas production 14,853 16,978  
Exploration expenses 1,114 2,361  
General and administrative 1,465 1,821  
Depletion, depreciation and amortization 4,121 15,100  
Interest and other financing costs, net (34) (67)  
Derivatives, net 0 0  
Other expenses, net 68,068 1,526  
Total costs and expenses 89,587 37,719  
Income (loss) before income taxes (67,192) (3,312)  
Income tax expense (benefit) 650 (601)  
Net loss (67,842) (2,711)  
Consolidated capital expenditures, net 509 (1,357)  
Property and equipment, net 13,620 466,204  
Total assets 2,664,929 2,470,169  
Operating Segments | Mauritania/Senegal      
Segment Reporting Information [Line Items]      
Oil and gas revenue 52,267 2,697  
Other income, net 0 0  
Total revenues and other income 52,267 2,697  
Oil and gas production 55,341 58,101  
Exploration expenses 336 1,618  
General and administrative 2,710 2,528  
Depletion, depreciation and amortization 30,796 2,917  
Interest and other financing costs, net 5,582 (1,014)  
Derivatives, net 0 0  
Other expenses, net 724 715  
Total costs and expenses 95,489 64,865  
Income (loss) before income taxes (43,222) (62,168)  
Income tax expense (benefit) 0 0  
Net loss (43,222) (62,168)  
Consolidated capital expenditures, net 2,050 49,013  
Property and equipment, net 1,878,714 2,105,186  
Total assets 6,389,681 3,231,623  
Operating Segments | Gulf of America      
Segment Reporting Information [Line Items]      
Oil and gas revenue 94,802 101,778  
Other income, net 57 490  
Total revenues and other income 94,859 102,268  
Oil and gas production 31,977 50,919  
Exploration expenses 4,014 4,495  
General and administrative 5,804 5,184  
Depletion, depreciation and amortization 31,286 57,675  
Interest and other financing costs, net 2,373 (2,020)  
Derivatives, net 0 0  
Other expenses, net 30,491 1,347  
Total costs and expenses 105,945 117,600  
Income (loss) before income taxes (11,086) (15,332)  
Income tax expense (benefit) 1 (111)  
Net loss (11,087) (15,221)  
Consolidated capital expenditures, net 18,525 18,331  
Property and equipment, net 485,064 861,330  
Total assets 3,799,340 4,101,688  
Corporate & Other      
Segment Reporting Information [Line Items]      
Oil and gas revenue 0 0  
Other income, net 291,361 46,790  
Total revenues and other income 291,361 46,790  
Oil and gas production 0 0  
Exploration expenses 14,277 1,150  
General and administrative 53,214 53,941  
Depletion, depreciation and amortization 153 158  
Interest and other financing costs, net 39,118 43,802  
Derivatives, net 251,996 6,732  
Other expenses, net 1,029 (63)  
Total costs and expenses 359,787 105,720  
Income (loss) before income taxes (68,426) (58,930)  
Income tax expense (benefit) 1,384 611  
Net loss (69,810) (59,541)  
Consolidated capital expenditures, net 784 1,243  
Property and equipment, net 2,198 16,359  
Total assets 29,742,908 26,285,260  
Eliminations      
Segment Reporting Information [Line Items]      
Oil and gas revenue 0 0  
Other income, net (291,418) (47,236)  
Total revenues and other income (291,418) (47,236)  
Oil and gas production 0 0  
Exploration expenses 0 0  
General and administrative (39,422) (40,504)  
Depletion, depreciation and amortization 0 0  
Interest and other financing costs, net 0 0  
Derivatives, net 0 0  
Other expenses, net (251,996) (6,732)  
Total costs and expenses (291,418) (47,236)  
Income (loss) before income taxes 0 0  
Income tax expense (benefit) 0 0  
Net loss 0 0  
Consolidated capital expenditures, net 0 0  
Property and equipment, net 0 0  
Total assets $ (41,166,429) $ (34,471,861)