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Commodity Derivative Contracts (Commodity Derivatives Outstanding Table) (Details) - NYMEX
Dec. 31, 2021
bbl / d
$ / Barrel
Swap | Q1-Q2 2022  
Derivative [Line Items]  
Volume per day | bbl / d 15,500
Weighted average swap price 49.01
Swap | Q1-Q2 2022 | Minimum  
Derivative [Line Items]  
Derivative, Swap Type, Fixed Price 42.65
Swap | Q1-Q2 2022 | Maximum  
Derivative [Line Items]  
Derivative, Swap Type, Fixed Price 58.15
Swap | Q3 - Q4 2022 [Member]  
Derivative [Line Items]  
Volume per day | bbl / d 9,000
Weighted average swap price 56.35
Swap | Q3 - Q4 2022 [Member] | Minimum  
Derivative [Line Items]  
Derivative, Swap Type, Fixed Price 50.13
Swap | Q3 - Q4 2022 [Member] | Maximum  
Derivative [Line Items]  
Derivative, Swap Type, Fixed Price 60.35
Collar | Q1-Q2 2022  
Derivative [Line Items]  
Volume per day | bbl / d 11,000
Weighted average floor price 49.77
Weighted average ceiling price 64.31
Collar | Q1-Q2 2022 | Minimum  
Derivative [Line Items]  
Derivative, Floor Price 47.50
Collar | Q1-Q2 2022 | Maximum  
Derivative [Line Items]  
Derivative, Cap Price 70.75
Collar | Q3 - Q4 2022 [Member]  
Derivative [Line Items]  
Volume per day | bbl / d 10,000
Weighted average floor price 49.75
Weighted average ceiling price 64.18
Collar | Q3 - Q4 2022 [Member] | Minimum  
Derivative [Line Items]  
Derivative, Floor Price 47.50
Collar | Q3 - Q4 2022 [Member] | Maximum  
Derivative [Line Items]  
Derivative, Cap Price 70.75