Prepaid Expenses (Tables)

3 Months Ended

Mar. 31, 2013

Prepaid Expenses [Abstract]

Prepaid Expenses Table

	March 31,		December 31,
	2013		2012
		(in thousands)
Prepaid drilling costs	$	20,038	$	30,101
Prepaid insurance		5,268		9,507
Total	$	25,306	$	39,608