Prepaid Expenses (Tables)

9 Months Ended

Sep. 30, 2011

Prepaid Expenses [Abstract]

Prepaid Expenses Table

	September 30,	December 31,
	2011	2010
	(in thousands)
Prepaid drilling costs	$            29,286	$              21,997
Prepaid insurance	7,820	7,690
Total	$            37,106	$               29,687