| Dec 31,
2011 | Dec 31,
2012 | Dec 31,
2013 | Dec 31,
2014 | Dec 31,
2015 | Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net (loss) income | 108 | 68 | 153 | 247 | -1,225 | -980 | 435 | 431 | -2,002 | -1,625 | -113 | 495 | 1,471 | -261 |
|---|
| Depletion, depreciation and amortization | 62 | 91 | 119 | 265 | 338 | 246 | 365 | 487 | 550 | 240 | 161 | 268 | 320 | 326 |
|---|
| Impairment of oil and natural gas properties | - | - | - | - | 1,440 | 715 | - | - | 2,040 | 1,357 | 118 | - | - | 373 |
|---|
| Loss on debt extinguishment | - | - | - | - | - | -24 | - | - | 49 | 50 | -3 | - | - | -13 |
|---|
| Net (gain) loss on derivative instruments | - | - | - | - | - | - | - | - | 85 | 65 | -557 | -1,000 | 740 | 30 |
|---|
| Cash Settlement On Derivative Instruments | - | - | - | - | - | - | - | - | - | 159 | -323 | -1,054 | 152 | 283 |
|---|
| Deferred income tax benefit | -372,000 | - | - | - | - | - | - | - | - | - | - | - | -525 | -56 |
|---|
| Stock-based compensation expense | 772,000 | 3 | 6 | 9 | 9 | 7 | 6 | 7 | 5 | - | - | - | 9 | 11 |
|---|
| Other, net | - | - | - | - | - | - | - | - | - | 32 | 3 | 11 | 8 | 6 |
|---|
| Changes in operating assets and liabilities, net | - | - | - | - | - | - | - | - | - | -7 | 113 | -19 | -29 | 15 |
|---|
| Net cash provided by operating activities | 158 | 199 | 191 | 410 | 322 | 338 | 680 | 752 | 724 | 95 | 293 | 739 | 723 | 650 |
|---|
| Additions to oil and natural gas properties | 287 | 757 | 808 | 1,329 | 1,579 | 725 | 1,065 | 865 | 720 | 367 | 207 | 461 | 537 | 454 |
|---|
| Proceeds from sale of oil and natural gas properties | 1 | 64 | - | 4 | 28 | 46 | 5 | 5 | 49 | 51 | 4 | 3 | 3 | 0 |
|---|
| Other, net | - | - | - | - | - | - | - | - | - | -2 | -3 | 1 | 3 | 2 |
|---|
| Net cash used in investing activities | -323,248,000 | -841 | -664 | -1,137 | -1,574 | -906 | -2,289 | -643 | -675 | -315 | -200 | -458 | -537 | -456 |
|---|
| New Credit Facility | - | - | - | - | - | - | - | - | - | - | 477 | 2,082 | 998 | 1,036 |
|---|
| New Credit Facility | - | - | - | - | - | - | - | - | - | - | 641 | 2,063 | 971 | 956 |
|---|
| Borrowings on Credit Facility | - | - | - | - | - | 21 | 3 | - | - | - | - | - | - | - |
|---|
| Issuance of 2029 Senior Notes | - | - | - | - | - | - | - | - | - | - | - | - | - | 650 |
|---|
| Early retirement of 2026 Senior Notes | - | - | - | - | - | - | - | - | - | - | - | - | - | 524 |
|---|
| Premium paid on 2026 Senior Notes | - | - | - | - | - | - | - | - | - | - | - | - | - | 13 |
|---|
| Debt issuance costs and loan commitment fees | - | - | - | - | - | - | - | - | - | 3 | 9 | 0 | 7 | 15 |
|---|
| Dividends on preferred stock | - | - | - | - | - | - | - | - | - | - | - | 5 | 5 | 4 |
|---|
| Repurchase of common stock under Repurchase Program | - | - | - | - | - | - | - | 200 | 31 | - | - | 250 | - | - |
|---|
| Shares exchanged for tax withholdings | - | - | - | - | - | - | - | - | 1 | - | - | - | - | 24 |
|---|
| Other, net | - | - | - | - | - | - | - | - | - | -2 | -2 | -2 | -3 | -0 |
|---|
| Net cash used in financing activities | 257 | 715 | 765 | 410 | 1,223 | 1,731 | 433 | -157 | -95 | 303 | -149 | -277 | -191 | -194 |
|---|
| Net change in cash and cash equivalents | - | - | - | - | - | - | - | -47 | -46 | 84 | -56 | 4 | -5 | -0 |
|---|