Derivative Instruments (Details) (USD $)	6 Months Ended							4 Months Ended	6 Months Ended			12 Months Ended
	Dec. 31, 2012 July - December 2012 [Member] Crude Oil [Member] Boe	Dec. 31, 2012 Swap [Member] Mcfe of Ngl [Member] Boe	Dec. 31, 2012 Swap [Member] Iso-Butane [Member] Boe	Dec. 31, 2012 Swap [Member] Normal Butane [Member] Boe	Dec. 31, 2012 Swap [Member] July - December 2012 [Member] Boe	Dec. 31, 2012 Swap [Member] July - December 2012 [Member] MMBTU	Dec. 31, 2012 Swap [Member] July - December 2012 [Member] Natural Gas [Member]	Oct. 31, 2012 Swap [Member] July - October 2012 [Member] MMBTU	Dec. 31, 2012 Costless Collar [Member] July - December 2012 [Member] Natural Gas [Member] MMBTU	Dec. 31, 2012 Costless Collar [Member] Maximum [Member] July - December 2012 [Member] Natural Gas [Member]	Dec. 31, 2012 Costless Collar [Member] Minimum [Member] July - December 2012 [Member] Natural Gas [Member]	Dec. 31, 2013 Three Way Collar [Member] January-December 2013 [Member] Natural Gas [Member]	Dec. 31, 2013 Three Way Collar [Member] Maximum [Member] January-December 2013 [Member] Natural Gas [Member]	Dec. 31, 2013 Three Way Collar [Member] Minimum [Member] January-December 2013 [Member] Natural Gas [Member]
Oil and gas contracts
Daily Volumes	250	100	50	50	250	20,000		20,000	10,000			10,000
Oil and Gas Contracts Weighted Average Price	$ 100.77	$ 100.13	$ 84.27	$ 80.49	$ 105.00	$ 105.00	$ 2.73	$ 2.60		$ 5.29	$ 5.00	$ 3.00	$ 4.09	$ 2.00