Quarterly report pursuant to Section 13 or 15(d)

Derivatives and Fair Value (Summary of Commodity Swaps) (Details)

v3.19.2
Derivatives and Fair Value (Summary of Commodity Swaps) (Details)
 6 Months Ended
Jun. 30, 2019
$ / bbl
bbl
May 06, 2019
$ / bbl
Jun. 30, 2018
$ / bbl
Barrels 500,000    
Commodity Contract, June 2018 Through June 2019 [Member]      
Barrels 225,130    
Weighted Average Fixed Price | $ / bbl 66.70   74.00
Commodity Contract, July 19 Through June 2020 [Member]      
Barrels 274,870    
Weighted Average Fixed Price | $ / bbl 66.70 66.70