v2.4.0.6

Investments in Mineral Properties - Additional Information (Detail) (USD $)	6 Months Ended		12 Months Ended				1 Months Ended		12 Months Ended	1 Months Ended			12 Months Ended		1 Months Ended	3 Months Ended	12 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2012 Investment	Jun. 30, 2011	Dec. 31, 2011 Investment	Dec. 31, 2010 Investment	Dec. 31, 2009	Dec. 31, 2010 Prior to 2011	Oct. 15, 2010 Mineral property S&W Oil & Gas, LLC - Rooney Prospect	Jun. 19, 2009 Mineral property S&W Oil & Gas, LLC - Rooney Prospect	Dec. 31, 2010 Mineral property S&W Oil & Gas, LLC - Rooney Prospect	Jun. 19, 2009 Mineral property S&W Oil & Gas, LLC - Rooney Prospect Land and leasing costs	Jun. 19, 2009 Mineral property S&W Oil & Gas, LLC - Rooney Prospect 3D Seismic shoot costs	Jun. 19, 2009 Mineral property S&W Oil & Gas, LLC - Rooney Prospect Wells and Equipment	Dec. 31, 2010 Mineral property S&W Oil & Gas, LLC - Shelor 23-3 Prospect	Dec. 31, 2009 Mineral property S&W Oil & Gas, LLC - Shelor 23-3 Prospect	May 04, 2009 Mineral property S&W Oil & Gas, LLC - Poston Prospect	Mar. 31, 2012 Mineral property S&W Oil & Gas, LLC - Poston Prospect	Dec. 31, 2011 Mineral property S&W Oil & Gas, LLC - Poston Prospect	Dec. 31, 2010 Mineral property S&W Oil & Gas, LLC - Poston Prospect	Dec. 31, 2009 Mineral property S&W Oil & Gas, LLC - Poston Prospect	Jun. 30, 2012 Mineral property Bay Petroleum Oklahoma prospects	Dec. 31, 2011 Mineral property Bay Petroleum Oklahoma prospects	Dec. 31, 2010 Mineral property Bay Petroleum Oklahoma prospects	Dec. 31, 2010 Mineral property Bay Petroleum Oklahoma prospects Minimum	Dec. 31, 2010 Mineral property Bay Petroleum Oklahoma prospects Maximum
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items]
Number of investments	2		6	17
Investment in mineral properties	$ 245,100	$ 804,000	$ 1,374,730			$ 2,505,103				$ 113,333	$ 216,697	$ 392,231		$ 116,900	$ 64,500			$ 106,167	$ 44,624			$ 697,600
Impairment expense related to dry holes	0		80,000	765,229	765,229																80,000
Impairment charges	256,737		93,879														93,879
Capitalized cost of proved wells	1,071,215		1,365,714
Capitalized cost of unproved wells	845,700		735,850
Total capitalized cost of investment	1,916,915		2,101,564
Amortization of mineral properties	60,808		119,415														22,568	16,572		129,782	96,847
Impairment expense	256,737		173,879						642,260				116,900
Percentage of working interest acquired								50.00%						50.00%	25.00%								25.00%	50.00%
Percent of net revenue interest								81.50%							81.50%
Property sold, Percentage																75.00%
Proceeds from sale of mineral properties	$ 106,000						$ 80,000									$ 65,000

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