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Segment Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
Selected Information [Line Items] |  |  |  |
Document Period End Date |  | Mar. 31, 2020 |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Operating Revenues and Other |  | $ 4,717,692,000 | $ 4,058,642,000 |
Operating Income (Loss) |  | 57,585,000 | 876,530,000 |
Other Income, Net |  | 18,108,000 | 5,612,000 |
Interest Expense, Net |  | (44,690,000) | (54,906,000) |
Income Before Income Taxes |  | 31,003,000 | 827,236,000 |
Total Assets |  | 37,634,084,000 |  | $ 37,124,608,000
Pretax impairment charges for proved oil and gas properties and other assets |  | 60,000,000 |  |
United States |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Operating Revenues and Other |  | 4,660,735,000 | 3,977,019,000 |
Operating Income (Loss) |  | 105,406,000 | 850,900,000 |
Total Assets |  | 36,921,668,000 |  | 36,274,942,000
Trinidad |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Operating Revenues and Other |  | 41,643,000 | 69,868,000 |
Operating Income (Loss) |  | 12,663,000 | 38,832,000 |
Total Assets |  | 538,159,000 |  | 705,747,000
Other International |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Operating Revenues and Other | [1] | 15,314,000 | 11,755,000 |
Operating Income (Loss) | [1],[2] | (60,484,000) | $ (13,202,000) |
Total Assets | [1] | $ 174,257,000 |  | $ 143,919,000
[1] | Other International primarily consists of EOG's China and Canada operations.
[2] | In the first quarter of 2020, EOG recorded pretax impairment charges of $60 million for firm commitment contracts related to its decision to exit the Horn River Basin in British Columbia, Canada.

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