Derivative Instruments - Schedule of Derivative Instruments - Not Designated as Hedging Instrument
bbl in Thousands, MMBTU in Thousands
3 Months Ended
Mar. 31, 2018
MMBTU
$ / MMBTU
$ / bbl
bbl
Crude Oil Basis Swap - Oil Next Quarter  
Derivative [Line Items]  
Volume (Bbl) | bbl 455
Weighted Average Fixed Price ($/Bbl or $/MMBtu) | $ / bbl (0.18)
Crude Oil Basis Swap - Oil Remainder of Current Year  
Derivative [Line Items]  
Volume (Bbl) | bbl 1,375
Weighted Average Fixed Price ($/Bbl or $/MMBtu) | $ / bbl (0.00)
Natural Gas Basis Swap - Remainder of Current Year  
Derivative [Line Items]  
Volume (MMBtu) | MMBTU 1,375
Weighted Average Fixed Price ($/Bbl or $/MMBtu) | $ / MMBTU (0.43)
Natural Gas Basis Swap - Next Year  
Derivative [Line Items]  
Volume (MMBtu) | MMBTU 1,825
Weighted Average Fixed Price ($/Bbl or $/MMBtu) | $ / MMBTU (0.43)