DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT - Gains/Losses on Derivatives (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | |||
| Gain (Loss) on Settled Commodity Derivatives | $ 188,264 | $ 44,377 | $ (22,886) |
| Gain (Loss) on Unsettled Commodity Derivatives | 39,878 | (173,214) | 207,892 |
| Gain (Loss) on Derivative Instruments, Net | $ 228,141 | $ (128,837) | $ 185,006 |
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- Definition Derivative, Gain (Loss) On Derivative, Net, Settled Commodity Derivatives No definition available.
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- Definition Derivative, Gain (Loss) On Derivative, Net, Unsettled Commodity Derivatives No definition available.
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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