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Revenues - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenues $ 114,976 $ 266,845
Oil    
Disaggregation of Revenue [Line Items]    
Revenues 73,621 186,360
NGL    
Disaggregation of Revenue [Line Items]    
Revenues 17,962 35,598
Natural gas    
Disaggregation of Revenue [Line Items]    
Revenues 22,867 44,146
Other    
Disaggregation of Revenue [Line Items]    
Revenues $ 526 $ 741