Transactions With Related Parties (Tables)

12 Months Ended

Dec. 31, 2011

Transactions With Related Parties [Abstract]

Schedule Of Amount Received In Public And Private Partnerships

	2011		2010		2009
	(In thousands)
Contract drilling	$	352	$	529	$	368
Well supervision and other fees	$	396	$	386	$	352
General and administrative expense reimbursement	$	610	$	536	$	376