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v3.21.2

Business Segments (Segment Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | $ 10,604,190 |  | $ 10,604,190 |  | $ 10,620,852
External Revenues | 549,643 | $ 211,542 | 929,628 | $ 1,215,270 |
Income (Loss) | (27,040) | (324,400) | (293,864) | (833,102) |
Continuing operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 10,603,000 |  | 10,603,000 |  |
External Revenues | 549,600 | 211,500 | 929,600 | 1,215,300 |
Income (Loss) | (26,900) | (323,200) | (294,000) | (827,000) |
Discontinued operations, net of tax |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 1,200 |  | 1,200 |  |
External Revenues | 0 | 0 | 0 | 0 |
Income (Loss) | (100) | (1,200) | 100 | (6,100) |
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 1,097,700 |  | 1,097,700 |  |
External Revenues | (219,900) | (76,000) | (434,200) | 324,800 |
Income (Loss) | (223,900) | (151,600) | (478,800) | 99,800 |
Exploration and production | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 9,505,300 |  | 9,505,300 |  |
External Revenues | 769,500 | 287,500 | 1,363,800 | 890,500 |
Income (Loss) | 197,000 | (171,600) | 184,800 | (926,800) |
Exploration and production | Operating Segments | United States |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 6,868,200 |  | 6,868,200 |  |
External Revenues | 648,900 | 228,300 | 1,139,200 | 739,800 |
Income (Loss) | 194,700 | (143,100) | 313,700 | (839,100) |
Exploration and production | Operating Segments | Canada |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 2,366,700 |  | 2,366,700 |  |
External Revenues | 120,600 | 59,200 | 224,600 | 148,900 |
Income (Loss) | 12,700 | (19,500) | (111,600) | (26,400) |
Exploration and production | Operating Segments | Other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Assets | 270,400 |  | 270,400 |  |
External Revenues | 0 | 0 | 0 | 1,800 |
Income (Loss) | $ (10,400) | $ (9,000) | $ (17,300) | $ (61,300) |

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