Commodity Derivative Contracts (Details)	Mar. 31, 2014
Swap [Member] | Crude Oil Contracts [Member] | Year 2014 [Member] | Q2 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	58,000
Derivative, Floor Price	91.67
Derivative, Cap Price	95.95
Weighted average swap price	93.53
Swap [Member] | Crude Oil Contracts [Member] | Year 2014 [Member] | Q3 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	58,000
Derivative, Floor Price	90.00
Derivative, Cap Price	93.50
Weighted average swap price	92.52
Swap [Member] | Crude Oil Contracts [Member] | Year 2014 [Member] | Q4 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	58,000
Derivative, Floor Price	90.00
Derivative, Cap Price	93.50
Weighted average swap price	92.52
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q1 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	10,000
Derivative, Floor Price	90.00
Derivative, Cap Price	90.30
Weighted average swap price	90.08
Weighted average sold put price	65.30
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q1 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	16,000
Derivative, Floor Price	93.20
Derivative, Cap Price	94.00
Weighted average swap price	93.63
Weighted average sold put price	68.00
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q2 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	4,000
Derivative, Floor Price	90.00
Derivative, Cap Price	90.00
Weighted average swap price	90.00
Weighted average sold put price	66.50
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q2 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	16,000
Derivative, Floor Price	93.20
Derivative, Cap Price	94.00
Weighted average swap price	93.65
Weighted average sold put price	68.00
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q3 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	4,000
Derivative, Floor Price	90.00
Derivative, Cap Price	90.10
Weighted average swap price	90.05
Weighted average sold put price	65.75
Swap [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q3 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	16,000
Derivative, Floor Price	93.20
Derivative, Cap Price	94.00
Weighted average swap price	93.65
Weighted average sold put price	68.00
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q1 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	28,000
Derivative, Floor Price	80.00
Derivative, Cap Price	100.90
Weighted average floor price	80.00
Weighted average ceiling price	96.68
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q1 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	4,000
Derivative, Floor Price	85.00
Derivative, Cap Price	102.20
Weighted average floor price	85.00
Weighted average ceiling price	102.10
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q2 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	34,000
Derivative, Floor Price	80.00
Derivative, Cap Price	95.25
Weighted average floor price	80.00
Weighted average ceiling price	94.66
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q2 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	4,000
Derivative, Floor Price	85.00
Derivative, Cap Price	102.50
Weighted average floor price	85.00
Weighted average ceiling price	101.75
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q3 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	34,000
Derivative, Floor Price	80.00
Derivative, Cap Price	95.25
Weighted average floor price	80.00
Weighted average ceiling price	95.04
Collar [Member] | Crude Oil Contracts [Member] | Year 2015 [Member] | Q3 [Member] | LLS [Member]
Derivative [Line Items]
Volume per Day	4,000
Derivative, Floor Price	85.00
Derivative, Cap Price	100.00
Weighted average floor price	85.00
Weighted average ceiling price	99.50
Collar [Member] | Natural Gas Contracts [Member] | Year 2014 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	14,000
Derivative, Floor Price	4.00
Derivative, Cap Price	4.47
Weighted average floor price	4.00
Weighted average ceiling price	4.45
Collar [Member] | Natural Gas Contracts [Member] | Year 2015 [Member] | NYMEX [Member]
Derivative [Line Items]
Volume per Day	8,000
Derivative, Floor Price	4.00
Derivative, Cap Price	4.53
Weighted average floor price	4.00
Weighted average ceiling price	4.51