Derivatives (Non Hedges Commodity) (Details)	Feb. 23, 2017 MMBTU_per_day Bbls_per_day $ / bbl	Dec. 31, 2016 MMBTU MMBTU_per_day BBL / Days Bbls_per_day $ / MMBTU $ / bbl
Crude Oil Three-Way Collars for the First Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | BBL / Days		50,000
Derivative, Average Cap Price		58.42
Derivative, Average Floor Price		50.30
Derivatives, Average Sold Put Price		43.50
Crude Oil Three-Way Collars for the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | BBL / Days		50,000
Derivative, Average Cap Price		58.42
Derivative, Average Floor Price		50.30
Derivatives, Average Sold Put Price		43.50
Crude Oil Three-Way Collars for Third Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | BBL / Days		30,000
Derivative, Average Cap Price		59.60
Derivative, Average Floor Price		54.00
Derivatives, Average Sold Put Price		47.00
Crude Oil Three-Way Collars for the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | BBL / Days		30,000
Derivative, Average Cap Price		59.60
Derivative, Average Floor Price		54.00
Derivatives, Average Sold Put Price		47.00
Crude Oil Options For the First Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day		35,000
Derivative, Average Price Risk Option Strike Price		61.91
Crude Oil Options for the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day		35,000
Derivative, Average Price Risk Option Strike Price		61.91
Crude Oil Options for the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day		35,000
Derivative, Average Price Risk Option Strike Price		61.91
Crude Oil Options for the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day		35,000
Derivative, Average Price Risk Option Strike Price		61.91
Natural Gas Three-Way Collars for the First Quarter in Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		60,000
Derivative, Average Cap Price | $ / MMBTU		3.46
Derivative, Average Floor Price | $ / MMBTU		2.84
Derivatives, Average Sold Put Price | $ / MMBTU		2.35
Natural Gas Three-Way Collars For the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		90,000
Derivative, Average Cap Price | $ / MMBTU		3.54
Derivative, Average Floor Price | $ / MMBTU		3.01
Derivatives, Average Sold Put Price | $ / MMBTU		2.48
Natural Gas Three-Way Collars For the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU		90,000
Derivative, Average Cap Price | $ / MMBTU		3.54
Derivative, Average Floor Price | $ / MMBTU		3.01
Derivatives, Average Sold Put Price | $ / MMBTU		2.48
Natural Gas Three-Way Collars For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU		90,000
Derivative, Average Cap Price | $ / MMBTU		3.61
Derivative, Average Floor Price | $ / MMBTU		3.04
Derivatives, Average Sold Put Price | $ / MMBTU		2.52
Natural Gas Three-Way Collars For Year 2 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU		20,000
Derivative, Average Cap Price | $ / MMBTU		3.56
Derivative, Average Floor Price | $ / MMBTU		3.00
Derivatives, Average Sold Put Price | $ / MMBTU		2.50
Natural Gas Swaps for the First Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		20,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU		2.93
Natural Gas Swaps For the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		20,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU		2.93
Natural Gas Swaps For the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		20,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU		2.93
Natural Gas Swaps For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		20,000
Derivative, Average Price Risk Option Strike Price | $ / MMBTU		2.93
Natural Gas Swaps For Year 2 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day		0
Derivative, Average Price Risk Option Strike Price | $ / MMBTU		0.00
Subsequent Event [Member] | Swap [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day	10,000
Derivative, Swap Type, Average Fixed Price	54.00
Subsequent Event [Member] | Crude Oil Three-Way Collars [Domain]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | Bbls_per_day	20,000
Derivative, Average Cap Price	61.52
Derivative, Average Floor Price	56.00
Derivatives, Average Sold Put Price	49.00
Subsequent Event [Member] | Natural Gas Three-Way Collars For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day	30,000
Derivative, Average Cap Price	4.00
Derivative, Average Floor Price	3.45
Derivatives, Average Sold Put Price	2.85
Subsequent Event [Member] | Natural Gas Three-Way Collars For Year 2 [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day	70,000
Derivative, Average Cap Price	3.62
Derivative, Average Floor Price	3.00
Derivatives, Average Sold Put Price	2.50
Subsequent Event [Member] | Natural Gas Three-Way Collars [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU_per_day	30,000
Derivative, Average Cap Price	3.70
Derivative, Average Floor Price	3.35
Derivatives, Average Sold Put Price	2.75