Acquisition and Divestitures (Tables)

3 Months Ended

Mar. 31, 2014

Acquisitions and Divestitures [Abstract]

Business Acquisition, Purchase Price Allocation [Table Text Block]

The following table represents the preliminary fair values assigned to the net assets acquired as of the closing and the consideration paid:

Assets
Oil and gas properties - proved	$	277,888
Oil and gas properties - unproved	119,709
Accounts receivable, net	97,145
Other assets	2,068
	496,810
Liabilities
Accounts payable and accrued expenses	94,771
Other liabilities	1,500
	96,271
Net assets acquired	$	400,539
Cash, net of amounts received for preferential rights	$	358,239
Fair value of the Shares issued to MHR	42,300
Consideration paid	$	400,539

Business Acquisition, Pro Forma Information [Table Text Block]

The results of operations attributable to the EF Acquisition have been included in our Condensed Consolidated Financial Statements from the Acquisition Date. The following table presents unaudited summary pro forma financial information for the period presented assuming the EF Acquisition and the related financing occurred as of January 1, 2012. The pro forma financial information does not purport to represent what our results of operations would have been if the EF Acquisition had occurred as of this date or the results of operations for any future periods.

	Three Months
	Ended
	March 31, 2013
Total revenues	$	109,064
Net loss attributable to common shareholders	$	(15,204	)
Loss per share - basic and diluted	$	(0.23	)