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Revenues - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disaggregation of Revenue [Line Items]      
Revenues $ 266,845 $ 349,395 $ 357,299
Oil      
Disaggregation of Revenue [Line Items]      
Revenues 186,360 214,651 202,539
NGL      
Disaggregation of Revenue [Line Items]      
Revenues 35,598 67,111 61,322
Natural gas      
Disaggregation of Revenue [Line Items]      
Revenues 44,146 66,964 92,349
Other      
Disaggregation of Revenue [Line Items]      
Revenues $ 741 $ 669 $ 1,089