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v3.19.3

Business Segments (Segment Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | [1]
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | $ 11,783,667 |  |  | $ 11,783,667 |  |  | $ 11,052,587
External Revenues | 817,077 | $ 490,511 | [2] | 2,191,573 | $ 1,287,763 | [2] |
Income (Loss) | 1,111,702 | 93,943 | [2] | 1,307,713 | 307,715 | [2],[3] |
Assets/revenue/income from continuing operations |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 11,766,500 |  |  | 11,766,500 |  |  |
External Revenues | 817,100 | 490,500 |  | 2,191,600 | 1,287,800 |  |
Income (Loss) | 158,300 | 56,100 |  | 280,100 | 121,500 |  |
Discontinued operations, net of tax |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 17,200 |  |  | 17,200 |  |  |
External Revenues | 0 | 0 |  | 0 | 0 |  |
Income (Loss) | 953,400 | 37,800 |  | 1,027,600 | 186,200 |  |
Corporate |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 1,151,200 |  |  | 1,151,200 |  |  |
External Revenues | 63,400 | (2,100) |  | 125,600 | (61,400) |  |
Income (Loss) | 300 | (49,300) |  | (97,000) | (96,700) |  |
Exploration and production | Operating Segments |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 10,615,300 |  |  | 10,615,300 |  |  |
External Revenues | 753,700 | 492,600 |  | 2,066,000 | 1,349,200 |  |
Income (Loss) | 158,000 | 105,400 |  | 377,100 | 218,200 |  |
Exploration and production | Operating Segments | United States |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 8,149,500 |  |  | 8,149,500 |  |  |
External Revenues | 656,800 | 357,800 |  | 1,734,300 | 971,700 |  |
Income (Loss) | 170,800 | 91,600 |  | 420,000 | 200,300 |  |
Exploration and production | Operating Segments | Canada |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 2,212,500 |  |  | 2,212,500 |  |  |
External Revenues | 95,000 | 114,900 |  | 323,800 | 357,600 |  |
Income (Loss) | (9,100) | 12,500 |  | (7,500) | 46,700 |  |
Exploration and production | Operating Segments | Other |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Total Assets | 253,300 |  |  | 253,300 |  |  |
External Revenues | 1,900 | 19,900 |  | 7,900 | 19,900 |  |
Income (Loss) | $ (3,700) | $ 1,300 |  | $ (35,400) | $ (28,800) |  |
[1] | Reclassified to conform to current presentation (see Note A).
[2] | Reclassified to conform to current presentation (see Note A).
[3] | Reclassified to conform to current presentation (See Note A).

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