Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Net Profits Plan Cash Payment Allocation

Cash payments made or accrued under the Company’s Net Profits Interest Bonus Plan (“Net Profits Plan”) that have been recorded as either G&A expense or exploration expense are presented in the table below:

	For the Three Months Ended March 31,
	2014		2013
	(in thousands)
General and administrative expense	$	2,978	$	3,786
Exploration expense	288		374
Total	$	3,266	$	4,160