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Supplemental Information on Oil and Natural Gas Producing Activities (Unaudited) - Results of Operations from Oil and Natural Gas Producing Activities (Unaudited) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 | Oct. 01, 2016 | Dec. 31, 2018 | Dec. 31, 2017
Successor |  |  |  |
Results of Operations for Oil and Gas Producing Activities |  |  |  |
Revenues | $ 98,456 |  | $ 349,395 | $ 357,299
Expenses |  |  |  |
Production costs | 27,640 |  | 112,173 | 116,372
Depreciation and depletion | 36,061 |  | 127,281 | 118,035
Impairment | 319,087 |  | 0 | 0
Total expenses | 382,788 |  | 239,454 | 234,407
Income (loss) before income taxes | (284,481) |  | 109,272 | 121,803
Income tax expense (benefit) | (112,427) |  | 28,520 | 47,722
Results of operations for oil and natural gas producing activities (excluding corporate overhead and interest costs) | (172,054) |  | 80,752 | 74,081
Predecessor |  |  |  |
Results of Operations for Oil and Gas Producing Activities |  |  |  |
Revenues |  | $ 293,809 |  |
Expenses |  |  |  |
Production costs |  | 135,715 |  |
Depreciation and depletion |  | 90,978 |  |
Impairment |  | 657,392 |  |
Total expenses |  | 884,085 |  |
Income (loss) before income taxes |  | (604,114) |  |
Income tax expense (benefit) |  | (229,986) |  |
Results of operations for oil and natural gas producing activities (excluding corporate overhead and interest costs) |  | (374,128) |  |
Oil, natural gas and NGL | Successor |  |  |  |
Results of Operations for Oil and Gas Producing Activities |  |  |  |
Revenues | $ 98,307 |  | $ 348,726 | $ 356,210
Oil, natural gas and NGL | Predecessor |  |  |  |
Results of Operations for Oil and Gas Producing Activities |  |  |  |
Revenues |  | $ 279,971 |  |

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