Prepaid Expenses (Tables)

9 Months Ended

Sep. 30, 2012

Prepaid Expenses [Abstract]

Prepaid Expenses Table

	September 30,		December 31,
	2012		2011
		(in thousands)
Prepaid drilling costs	$	47,462	$	42,775
Prepaid insurance		11,944		7,275
Total	$	59,406	$	50,050