| 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,
2021 | Dec 31,
2022 |
|---|
| Net income (loss) | 573 | 525 | 410 | 635 | -4,385 | -976 | 163 | 323 | 217 | 56 | 480 |
|---|
| Depreciation, Depletion and Amortization | 409 | 508 | 510 | 593 | 532 | 846 | 208 | 216 | 234 | 151 | 151 |
|---|
| Impairment of Oil and Gas Properties | - | - | - | - | 4,940 | 811 | - | - | - | 14 | - |
|---|
| Deferred income taxes | 342 | 256 | 223 | 430 | -1,932 | -543 | -96 | 103 | 100 | 0 | 69 |
|---|
| Stock-based compensation | 33 | 29 | 33 | 31 | 31 | 15 | 15 | 12 | 12 | 25 | 16 |
|---|
| Commodity derivatives expense (income) | - | - | - | - | - | -128 | -78 | 21 | -70 | -353 | -179 |
|---|
| Receipt (payment) on settlements of commodity derivatives | - | - | - | - | - | - | - | - | 24 | -277 | -316 |
|---|
| Gain on debt extinguishment | -16 | - | -45 | -114 | - | 115 | - | - | 156 | - | - |
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| Debt issuance costs and discounts | 17 | 15 | 14 | 13 | 9 | 17 | 6 | 6 | 12 | 3 | 3 |
|---|
| Gain from asset sales and other | - | - | - | - | - | - | - | - | - | 11 | 1 |
|---|
| Other, net | 4 | -17 | 2 | -6 | -0 | 2 | -3 | 5 | 9 | 2 | 13 |
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| Accrued production receivable | 75 | -36 | 15 | -80 | -81 | 24 | 21 | -21 | 14 | 52 | 1 |
|---|
| Trade and other receivables | - | - | - | - | - | - | - | - | - | 0 | 8 |
|---|
| Other current and long-term assets | 16 | -8 | -10 | -3 | -0 | 9 | 2 | 7 | -8 | -10 | 10 |
|---|
| Accounts payable and accrued liabilities | -35 | 6 | 92 | 1 | -55 | -34 | -25 | 13 | -3 | 29 | 1 |
|---|
| Oil and natural gas production payable | 54 | -23 | 13 | -47 | -41 | -7 | -4 | -15 | 2 | 29 | 4 |
|---|
| Asset retirement obligation settlements | - | - | - | - | - | - | - | - | - | - | -34 |
|---|
| Other liabilities | -28 | -41 | -15 | -5 | -7 | -7 | -6 | 43 | -13 | -11 | -0 |
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| Net cash provided by operating activities | 1,205 | 1,411 | - | - | - | - | - | - | 494 | 317 | 521 |
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| Oil and natural gas capital expenditures | 1,083 | 1,123 | 900 | 947 | 476 | 243 | 263 | 317 | 262 | 151 | 317 |
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| CCUS storage sites and related capital expenditures | - | - | - | - | - | - | - | - | - | - | -60 |
|---|
| Acquisitions of oil and natural gas properties | - | - | - | - | 22 | 1 | 89 | 1 | 0 | 11 | 1 |
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| Pipeline capital expenditures | - | - | - | - | - | - | - | - | 27 | 69 | 23 |
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| Proceeds from Sale of Oil and Gas Property and Equipment | 69 | 35 | 8 | 3 | 1 | 48 | 2 | 8 | 10 | 19 | 0 |
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| Equity investment | - | - | - | - | - | - | - | - | - | - | 10 |
|---|
| Other | 8 | 11 | 19 | 1 | -11 | 0 | 3 | -5 | -13 | -9 | 17 |
|---|
| Net cash used in investing activities | -1,606 | -1,377 | - | - | - | - | - | - | -270 | -203 | -428 |
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| Bank repayments | - | - | - | - | 1,862 | 1,731 | 1,589 | 1,983 | 926 | 933 | 1,015 |
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| Bank borrowings | - | - | - | - | 1,642 | 1,857 | 1,763 | 1,508 | 926 | 898 | 1,009 |
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| Common stock repurchase program | 195 | 251 | 282 | 211 | 12 | - | - | - | - | - | 100 |
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| Pipeline financing and capital lease debt repayments | - | - | - | - | - | - | - | - | - | 68 | - |
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| Other | -16 | -18 | -22 | -19 | -35 | 0 | -5 | -13 | 0 | -3 | 11 |
|---|
| Net cash provided by (used in) financing activities | 38 | 46 | - | - | - | - | - | - | -246 | -106 | -95 |
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| Net increase (decrease) in cash, cash equivalents, and restricted cash | - | - | - | - | - | - | - | 39 | -22 | 8 | -2 |
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