NATURAL RESOURCES ASSETS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Oil and natural gas properties
Proved oil and natural gas properties (successful efforts method)	$ 451,909,000	$ 315,446,000
Unproved oil and natural gas properties	16,913,000	2,596,000
Less: Accumulated depreciation, depletion and amortization	(68,453,000)	(28,113,000)
Oil and gas properties, net	400,369,000	289,929,000
Impairment charges	$ 10,400,000	$ 3,300,000