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Supplemental Oil and Gas Disclosures - Unaudited (Tables) | 12 Months Ended
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Dec. 31, 2020
Oil and Gas Exploration and Production Industries Disclosures [Abstract] |
Capitalized Costs Related to Oil and Natural Gas Producing Activities | The following table sets forth the capitalized costs related to the Company’s oil and gas producing activities at December 31 (in thousands):
| Successor |  |  | Predecessor
| December 31, 2020 |  |  | December 31, 2019
Proved oil and gas properties | $ | 770,117 |  |  |  | $ | 8,724,376 |
Less: Accumulated depreciation, depletion, amortization and impairment | (12,403) |  |  |  | (3,601,019) |
Proved oil and gas properties, net | 757,714 |  |  |  | 5,123,357 |
Unproved oil and gas properties | 40,211 |  |  |  | 738,662 |
Total oil and gas properties, net | $ | 797,925 |  |  |  | $ | 5,862,019 |
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development Activities | The following table sets forth costs incurred related to the Company’s oil and gas activities for the periods presented (in thousands):
| Successor |  |  | Predecessor
| Period from November 20, 2020 through December 31, 2020 |  |  | Period from January 1, 2020 through November 19, 2020 |  | Year Ended December 31,
|  |  |  | 2019 |  | 2018
Acquisition costs: |  |  |  |  |  |  |  |
Proved oil and gas properties | $ | — |  |  |  | $ | — |  |  | $ | — |  |  | $ | 260,034 |
Unproved oil and gas properties | 336 |  |  |  | 536 |  |  | 23,058 |  |  | 696,293 |
Exploration costs | 105 |  |  |  | 1,225 |  |  | 67,470 |  |  | 53,928 |
Development costs | 14,624 |  |  |  | 199,537 |  |  | 542,133 |  |  | 923,562 |
Asset retirement costs | 35 |  |  |  | 181 |  |  | 2,083 |  |  | 5,804 |
Total costs incurred | $ | 15,100 |  |  |  | $ | 201,479 |  |  | $ | 634,744 |  |  | $ | 1,939,621 |
Results of Operations for Oil and Natural Gas Producing Activities | The following table sets forth the results of operations for oil and gas producing activities, which exclude general and administrative expenses and interest expense, for the periods presented (in thousands):
| Successor |  |  | Predecessor
| Period from November 20, 2020 through December 31, 2020 |  |  | Period from January 1, 2020 through November 19, 2020 |  | Year Ended December 31,
|  |  |  | 2019 |  | 2018
Revenues | $ | 86,442 |  |  |  | $ | 603,585 |  |  | $ | 1,408,771 |  |  | $ | 1,590,024 |
Production costs | 32,903 |  |  |  | 249,707 |  |  | 464,782 |  |  | 434,801 |
Depreciation, depletion and amortization | 12,745 |  |  |  | 264,822 |  |  | 759,900 |  |  | 613,928 |
Exploration costs | — |  |  |  | 2,748 |  |  | 6,658 |  |  | 27,432 |
Rig termination | — |  |  |  | 1,279 |  |  | 384 |  |  | — |
Impairment | — |  |  |  | 4,800,785 |  |  | 5,389 |  |  | 384,228 |
Income tax (benefit) expense | 9,648 |  |  |  | (1,115,276) |  |  | 40,745 |  |  | 30,770 |
Results of operations for oil and gas producing activities | $ | 31,146 |  |  |  | $ | (3,600,480) |  |  | $ | 130,913 |  |  | $ | 98,865 |

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