Derivatives Derivatives (Details 4-Non Hedges Commodity) (Details)		May. 05, 2016 BBL / Days $ / bbl	Mar. 31, 2016 BBL / Days MMBTU_per_day $ / MMBTU $ / bbl
Crude Oil Three-Way Collars for Second Quarter of Year 1
Derivative [Line Items]
Volume | BBL / Days	[1],[2]		39,000
Ceiling Price	[1],[2]		55.47
Floor Price	[1],[2]		51.56
Sold Put Price	[1],[2]		41.67
Crude Oil Three-Way Collars For Third Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[1],[2]		37,000
Ceiling Price	[1],[2]		54.52
Floor Price	[1],[2]		50.83
Sold Put Price	[1],[2]		41.22
Crude Oil Three-Way Collars for Fourth Quarter of Year 1
Derivative [Line Items]
Volume | BBL / Days	[1],[2]		37,000
Ceiling Price	[1],[2]		54.52
Floor Price	[1],[2]		50.83
Sold Put Price	[1],[2]		41.22
Crude Oil Three-Way Collars For Year 2 [Member]
Derivative [Line Items]
Volume | BBL / Days	[1],[2]		0
Ceiling Price	[1],[2]		0
Floor Price	[1],[2]		0
Sold Put Price	[1],[2]		0
Crude Oil Options For the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2],[3]		10,000
Option Price	[2],[3]		72.39
Crude Oil Options For the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2],[3]		10,000
Option Price	[2],[3]		72.39
Crude Oil Options For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2],[3]		10,000
Option Price	[2],[3]		72.39
Crude Oil Options For Year 2 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2],[3]		25,000
Option Price	[2],[3]		60.67
Crude Oil Swaps For the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2]		25,000
Option Price	[2]		39.25
Crude Oil Swaps For the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2]		0
Option Price	[2]		0
Crude Oil Swaps For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2]		0
Option Price	[2]		0
Crude Oil Swaps For Year 2 [Member]
Derivative [Line Items]
Volume | BBL / Days	[2]		0
Option Price	[2]		0
Crude Oil Three-Way Collars Option to Extend Jul-Dec 2016 [Member]
Derivative [Line Items]
Volume | BBL / Days			2,000
Ceiling Price			73.13
Floor Price			65.00
Sold Put Price			50.00
Natural Gas - Three-Way Collars For the Second Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | MMBTU_per_day	[4],[5]		20,000
Ceiling Price | $ / MMBTU	[4],[5]		2.93
Floor Price | $ / MMBTU	[4],[5]		2.50
Sold Put Price | $ / MMBTU	[4],[5]		2.00
Natural Gas Three-Way Collars For the Third Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | MMBTU_per_day	[4],[5]		20,000
Ceiling Price | $ / MMBTU	[4],[5]		2.93
Floor Price | $ / MMBTU	[4],[5]		2.50
Sold Put Price | $ / MMBTU	[4],[5]		2.00
Natural Gas Three-Way Collars For the Fourth Quarter of Year 1 [Member]
Derivative [Line Items]
Volume | MMBTU_per_day	[4],[5]		20,000
Ceiling Price | $ / MMBTU	[4],[5]		2.93
Floor Price | $ / MMBTU	[4],[5]		2.50
Sold Put Price | $ / MMBTU	[4],[5]		2.00
Natural Gas Three-Way Collars For Year 2 [Member]
Derivative [Line Items]
Volume | MMBTU_per_day	[4],[5]		20,000
Ceiling Price | $ / MMBTU	[4],[5]		3.07
Floor Price | $ / MMBTU	[4],[5]		2.75
Sold Put Price | $ / MMBTU	[4],[5]		2.25
Swaption [Member]
Derivative [Line Items]
Swap Price			2.93
Volume | MMBTU_per_day			20,000
Subsequent Event [Member] | Crude Oil Two-Way Collar Jul-Dec 2016 [Member]
Derivative [Line Items]
Volume | BBL / Days		10,000
Ceiling Price		50.00
Floor Price		41.55
Subsequent Event [Member] | Crude Oil Three-Way Collars May-Dec 2016 [Member]
Derivative [Line Items]
Volume | BBL / Days		10,000
Ceiling Price		58.51
Floor Price		48.00
Sold Put Price		40.00
Subsequent Event [Member] | Crude Oil Sold Call 2017 [Member]
Derivative [Line Items]
Volume | BBL / Days		10,000
Option Price		65.00
Subsequent Event [Member] | Natural Gas Three-Way Collars 2017 [Member]
Derivative [Line Items]
Volume | BBL / Days		20,000
Ceiling Price		3.50
Floor Price		2.75
Sold Put Price		2.25

[1] A counterparty has the option, exercisable on June 30, 2016, to extend three-way collars for 2,000 Bbls/day through the remainder of 2016 at a ceiling of $73.13, floor of $65.00 and sold put of $50.00.

[2] Subsequent to March 31, 2016, we entered into 10,000 Bbls/day of two-way collars for July - December 2016 with a ceiling price of $50.00 and a floor price of $41.55. We also entered into 10,000 Bbls/day of 2016 three-way collars for May - December 2016 with a ceiling price of $58.51, a floor price of $48.00, and a sold put price of $40.00, traded in conjunction with sold call options of 10,000 Bbls/day for 2017 at $65.00.

[3] Call options settle monthly.

[4] Counterparty has the option to execute fixed-price swaps (swaptions) at a weighted average price of $2.93 per MMBtu indexed to NYMEX Henry Hub, which is exercisable on December 22, 2016. If counterparty exercises, the term of the fixed-price swaps would be for the calendar year 2017 and, if all such options are exercised, 20,000 MMBtu per day.

[5] Subsequent to March 31, 2016, we entered into 20,000 MMBtu/day of 2017 three-way collars with a ceiling price of $3.50, a floor price of $2.75, and a sold put price of $2.25.