Commodity Derivative Contracts (Details)	Jun. 30, 2016 bbl / d $ / Barrel
Swap | Year 2016 | Q3 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	18,500
Weighted average swap price	38.96
Swap | Year 2016 | Q3 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	36.25
Swap | Year 2016 | Q3 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	45.08
Swap | Year 2016 | Q3 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	7,000
Weighted average swap price	39.61
Swap | Year 2016 | Q3 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	37.24
Swap | Year 2016 | Q3 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	42.15
Swap | Year 2016 | Q4 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	26,000
Weighted average swap price	38.70
Swap | Year 2016 | Q4 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	36.25
Swap | Year 2016 | Q4 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	45.40
Swap | Year 2016 | Q4 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	7,000
Weighted average swap price	39.16
Swap | Year 2016 | Q4 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	37.24
Swap | Year 2016 | Q4 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	41.00
Swap | Year 2017 | Q1 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	22,000
Weighted average swap price	42.67
Swap | Year 2017 | Q1 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	41.15
Swap | Year 2017 | Q1 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	45.45
Swap | Year 2017 | Q1 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	10,000
Weighted average swap price	43.77
Swap | Year 2017 | Q1 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	42.35
Swap | Year 2017 | Q1 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	46.15
Swap | Year 2017 | Q2 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	22,000
Weighted average swap price	43.99
Swap | Year 2017 | Q2 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	41.20
Swap | Year 2017 | Q2 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	46.50
Swap | Year 2017 | Q2 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	7,000
Weighted average swap price	45.35
Swap | Year 2017 | Q2 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	42.65
Swap | Year 2017 | Q2 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	46.65
Collar | Year 2016 | Q3 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	4,500
Derivative, Floor Price	55.00
Derivative, Cap Price	72.65
Weighted average floor price	55.00
Weighted average ceiling price	71.22
Collar | Year 2016 | Q3 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	3,000
Derivative, Floor Price	58.00
Derivative, Cap Price	74.30
Weighted average floor price	58.00
Weighted average ceiling price	73.85
Collar | Year 2016 | Q4 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	4,000
Derivative, Floor Price	40.00
Derivative, Cap Price	54.00
Weighted average floor price	40.00
Weighted average ceiling price	53.48
Collar | Year 2016 | Q4 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	4,000
Derivative, Floor Price	40.00
Derivative, Cap Price	56.00
Weighted average floor price	40.00
Weighted average ceiling price	55.79
Collar | Year 2016 | Q3 (2) | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	4,000
Derivative, Floor Price	40.00
Derivative, Cap Price	51.80
Weighted average floor price	40.00
Weighted average ceiling price	51.40
Collar | Year 2016 | Q3 (2) | LLS
Derivative [Line Items]
Volume per Day | bbl / d	5,000
Derivative, Floor Price	40.00
Derivative, Cap Price	54.25
Weighted average floor price	40.00
Weighted average ceiling price	53.74
Collar | Year 2017 | Q1 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	4,000
Derivative, Floor Price	40.00
Derivative, Cap Price	55.40
Weighted average floor price	40.00
Weighted average ceiling price	54.80
Collar | Year 2017 | Q1 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	3,000
Derivative, Floor Price	40.00
Derivative, Cap Price	57.35
Weighted average floor price	40.00
Weighted average ceiling price	57.23
Three-way Collar | Year 2017 | Q3 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	6,500
Derivative, Floor Price	40.00
Derivative, Cap Price	70.25
Weighted average sold put price	30.00
Weighted average floor price	40.00
Weighted average ceiling price	69.74
Three-way Collar | Year 2017 | Q3 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	1,000
Derivative, Floor Price	41.00
Derivative, Cap Price	69.25
Weighted average sold put price	31.00
Weighted average floor price	41.00
Weighted average ceiling price	69.25