Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2011

Related Party Transactions [Abstract]

Schedule Of Related Party Transactions

	Year Ended December 31,
	2011		2010		2009
	(in thousands)
Receipt of lease operating and supervision charges in accordance with standard industry operating agreements	$	2,104	$	2,184	$	2,224
Reimbursement of general and administrative expenses	$	313	$	344	$	265