Commodity Price Risk Activities - Schedule of Derivative Transactions Outstanding (Details)	12 Months Ended
	Dec. 31, 2017 MMBTU $ / bbl $ / MMBTU bbl
Oil - WTI Fixed Price Swap - $54.18 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	365,000
Fixed Price	54.18
Oil - WTI Fixed Price Swap - $55.65 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Fixed Price	55.65
Oil - WTI Fixed Price Swap - $55.50 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Fixed Price	55.50
Oil - WTI Fixed Price Swap - $47.10 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	292,000
Fixed Price	47.10
Oil - WTI Fixed Price Swap - $50.17 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	509,000
Fixed Price	50.17
Oil - WTI Fixed Price Swap - $50.40 - Settlement Period - January - December 2019
Derivative [Line Items]
Total Volume | bbl	508,900
Fixed Price	50.40
Oil - WTI Fixed Price Swap - $48.04 - Settlement Period - January - December 2019
Derivative [Line Items]
Total Volume | bbl	560,700
Fixed Price	48.04
Oil - WTI Fixed Price Swap - $50.90 - Settlement Period - January - December 2019
Derivative [Line Items]
Total Volume | bbl	401,500
Fixed Price	50.90
Oil - WTI Fixed Price Swap - $48.90 - Settlement Period - January - June 2020
Derivative [Line Items]
Total Volume | bbl	203,600
Fixed Price	48.90
Natural Gas - Henry Hub NYMEX Fixed Price Swap - $3.09 - Settlement Period - January - December 2018
Derivative [Line Items]
Total Energy | MMBTU	1,825,000
Fixed Price | $ / MMBTU	3.09
Oil - 2 Way Collar - Settlement Period - January - December 2018
Derivative [Line Items]
Total Volume | bbl	182,500
Oil - 2 Way Collar - Settlement Period - January - December 2018 | Puts
Derivative [Line Items]
Fixed Price	50.00
Oil - 2 Way Collar - Settlement Period - January - December 2018 | Calls
Derivative [Line Items]
Fixed Price	59.45