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Derivative Financial Instruments (Details 2) - Oil Swaps [Member]
Dec. 31, 2019
USD ($)
$ / shares
First quarter [Member] | 2020 [Member]  
Volume (Bbl) | $ $ 23,413
Price per Bbl | $ / shares $ 60.32
First quarter [Member] | 2021 [Member]  
Volume (Bbl) | $ $ 20,106
Price per Bbl | $ / shares $ 49.43
Second quarter [Member] | 2020 [Member]  
Volume (Bbl) | $ $ 23,172
Price per Bbl | $ / shares $ 59.53
Second quarter [Member] | 2021 [Member]  
Volume (Bbl) | $ $ 15,683
Price per Bbl | $ / shares $ 50.47
Third quarter [Member] | 2020 [Member]  
Volume (Bbl) | $ $ 22,944
Price per Bbl | $ / shares $ 58.26
Third quarter [Member] | 2021 [Member]  
Volume (Bbl) | $ $ 6,665
Price per Bbl | $ / shares $ 49.30
Fourth quarter [Member] | 2020 [Member]  
Volume (Bbl) | $ $ 20,944
Price per Bbl | $ / shares $ 55.09
Fourth quarter [Member] | 2021 [Member]  
Volume (Bbl) | $ $ 4,372
Price per Bbl | $ / shares $ 50.87