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Derivative Financial Instruments Gains and Losses (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Derivative Instruments, (Gain) Loss [Line Items] |  |  |
Derivative settlement (gain) loss | $ 748,958 | $ (351,261) | $ (39,222)
Net derivative (gain) loss | 901,659 | (161,576) | 97,539
Oil Contracts [Member] |  |  |
Derivative Instruments, (Gain) Loss [Line Items] |  |  |
Derivative settlement (gain) loss | 523,245 | (331,559) | 19,685
Net derivative (gain) loss | 650,959 | (205,180) | 172,055
Gas Contracts [Member] |  |  |
Derivative Instruments, (Gain) Loss [Line Items] |  |  |
Derivative settlement (gain) loss | 152,361 | (11,898) | (23,008)
Net derivative (gain) loss | 172,248 | 30,038 | (41,205)
NGL Contracts [Member] |  |  |
Derivative Instruments, (Gain) Loss [Line Items] |  |  |
Derivative settlement (gain) loss | 73,352 | (7,804) | (35,899)
Net derivative (gain) loss | $ 78,452 | $ 13,566 | $ (33,311)

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- Definition Realized gain or loss recognized in earnings from the settlement of derivative instruments not designated as hedges. + References No definition available. + Details
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 + Details
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