| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 1,473a | 1,929a |
| Accounts receivable—oil, natural gas, and natural gas liquids sales | 155,942a | 122,479a |
| Accounts receivable—joint interest and other | 8,727a | 22,221a |
| Prepaid expenses and other current assets | 7,086a | 16,951a |
| Short-term derivative instruments | 58,085a | 233,226a |
| Total current assets | 231,313a | 396,806a |
| Property and equipment | — | — |
| Oil and natural gas properties, full-cost method | — | — |
| Proved oil and natural gas properties | 3,349,805a | 2,904,519a |
| Unproved properties | 221,650a | 204,233a |
| Other property and equipment | 11,291a | 9,165a |
| Total property and equipment | 3,582,746a | 3,117,917a |
| Less: accumulated depletion, depreciation, amortization and impairment | -1,564,475a | -865,618a |
| Total property and equipment, net | 2,018,271a | 2,252,299a |
| Other assets | — | — |
| Long-term derivative instruments | 6,003a | 47,566a |
| Deferred tax asset | 581,233a | 525,156a |
| Operating lease assets | 6,099a | 14,299a |
| Other assets | 22,778a | 31,487a |
| Total other assets | 616,113a | 618,508a |
| Total assets | 2,865,697a | 3,267,613a |
| Liabilities, mezzanine equity and stockholders’ equity | — | — |
| Current liabilities | — | — |
| Accounts payable and accrued liabilities | 298,081a | 309,532a |
| Short-term derivative instruments | 41,889a | 21,963a |
| Current portion of operating lease liabilities | 5,538a | 12,959a |
| Total current liabilities | 345,508a | 344,454a |
| Non-current liabilities | — | — |
| Long-term derivative instruments | 35,081a | 18,602a |
| Asset retirement obligation | 32,949a | 29,941a |
| Non-current operating lease liabilities | 561a | 1,340a |
| Long-term debt | 702,857a | 667,382a |
| Total non-current liabilities | 771,448a | 717,265a |
| Total liabilities | 1,116,956a | 1,061,719a |
| Mezzanine equity | — | — |
| Preferred stock | 37,348a | 44,214a |
| Stockholders’ equity | — | — |
| Common stock | 2a | 2a |
| Additional paid-in capital | 129,059a | 315,726a |
| Common stock held in reserve | 0a | -1,996a |
| Retained earnings | 1,582,332a | 1,847,948a |
| Total stockholders’ equity | 1,711,393a | 2,161,680a |
| Total liabilities, mezzanine equity and stockholders’ equity | 2,865,697a | 3,267,613a |