Disclosure About Oil and Gas Producing Activities (Unaudited) (Details 1)	Dec. 31, 2014 bbl	Dec. 31, 2013 bbl	Dec. 31, 2012 bbl	Dec. 31, 2011 bbl
Oil Reserves [Member]
Reserve Quantities [Line Items]
Developed	28,481,000	20,566,000	10,531,000	11,794,000
Undeveloped	39,285,000	13,553,000	7,606,000	21,287,000
Total Proved	67,766,000	34,119,000	18,137,000	33,081,000
Natural Gas Reserves [Member]
Reserve Quantities [Line Items]
Developed	2,245,004,000	1,777,267,000	1,820,994,000	1,973,391,000
Undeveloped	2,586,190,000	1,632,475,000	1,145,451,000	2,805,163,000
Total Proved	4,831,194,000	3,409,742,000	2,966,445,000	4,778,554,000
Natural Gas Liquids Reserves [Member]
Reserve Quantities [Line Items]
Developed	9,118,000	0	0	0
Undeveloped	12,875,000	0	0	0
Total Proved	21,993,000	0	0	0