Acquisitions (Details 1) (USD $)	1 Months Ended
	Jun. 30, 2011	Apr. 30, 2011	Jun. 30, 2012	Apr. 22, 2011
ING Asset Acquisition [Member]
Acquisitions (Textual)
Number of natural gas wells purchased under initial closing		45
Purchase price of natural gas wells	$ 23,200,000			$ 1,500,000
Number of natural gas wells purchased under subsequent closing	385
Number of natural gas wells purchased	430
Cash paid for acquired entity	25,900,000
Consideration for extending the date of the final closing	600,000
Number of counties in West Virginia, in which assets are located			4
Alerion Drilling I Llc Asset Acquisition [Member]
Acquisitions (Textual)
Cash paid for acquired entity	$ 1,200,000
Ownership interest prior to the final closing	50.00%		50.00%