Commodity Derivative Contracts (Details)	Mar. 31, 2016 bbl / d $ / Barrel
Enhanced Swaps | Year 2016 | Q2 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	2,000
Weighted average swap price	90.35
Weighted average sold put price	68.00
Enhanced Swaps | Year 2016 | Q2 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	90.35
Enhanced Swaps | Year 2016 | Q2 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	90.35
Enhanced Swaps | Year 2016 | Q2 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	6,000
Weighted average swap price	93.38
Weighted average sold put price	70.00
Enhanced Swaps | Year 2016 | Q2 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	93.30
Enhanced Swaps | Year 2016 | Q2 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	93.50
Swap | Year 2016 | Q2 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	11,500
Weighted average swap price	61.84
Swap | Year 2016 | Q2 | NYMEX | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	60.30
Swap | Year 2016 | Q2 | NYMEX | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	63.75
Swap | Year 2016 | Q2 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	3,500
Weighted average swap price	64.99
Swap | Year 2016 | Q2 | LLS | Minimum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	64.20
Swap | Year 2016 | Q2 | LLS | Maximum
Derivative [Line Items]
Derivative, Swap Type, Fixed Price	66.15
Swap | Year 2016 | Q3 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	16,500
Weighted average swap price	38.24
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	40.65
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	23,000
Weighted average swap price	37.97
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	40.00
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	20,000
Weighted average swap price	42.39
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	44.35
Swap | Year 2017 | Q1 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	9,000
Weighted average swap price	43.51
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	45.60
Three-way Collar | Year 2016 | Q2 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	2,000
Derivative, Floor Price	85.00
Derivative, Cap Price	95.50
Weighted average sold put price	68.00
Weighted average floor price	85.00
Weighted average ceiling price	95.50
Three-way Collar | Year 2016 | Q2 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	2,000
Derivative, Floor Price	88.00
Derivative, Cap Price	98.25
Weighted average sold put price	70.00
Weighted average floor price	88.00
Weighted average ceiling price	98.25
Collar | Year 2016 | Q2 | NYMEX
Derivative [Line Items]
Volume per Day | bbl / d	5,000
Derivative, Floor Price	55.00
Derivative, Cap Price	72.25
Weighted average floor price	55.00
Weighted average ceiling price	71.01
Collar | Year 2016 | Q2 | LLS
Derivative [Line Items]
Volume per Day | bbl / d	2,000
Derivative, Floor Price	58.00
Derivative, Cap Price	73.00
Weighted average floor price	58.00
Weighted average ceiling price	73.00
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