Assets Held for Sale (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Apr. 23, 2014	Dec. 31, 2013
Assets held for sale [Abstract]
Cash Consideration to Acquire Unproved Property		$ 100,000,000
Leasehold Acres Consideration to Acquire Unproved Property		7,000
Assets Held-for-sale Reasonably Certain Period for Sale	1
Oil and gas properties held for sale net of accumulated depletion, depreciation and amortization of $31,776 in 2014 and $7,390 in 2013	42,276,000		19,072,000
Asset retirement obligation associated with oil and gas properties held for sale	$ 4,526,000		$ 3,033,000