Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2011

Decommissioning and Other Asset Retirement Obligations

Changes in Asset Retirement Obligations Table

	Three Months Ended September 30,
	2011			2010
	(In Thousands)
Beginning balance as of June 30	$	144,525		$	216,147
Activity in the period:
Accretion of liability		631			1,392
Retirement obligations incurred		-			-
Revisions in estimated cash flows		14,311			19,897
Settlement of retirement obligations		(25,872	)		(35,201	)
Ending balance as of September 30	$	133,595		$	202,235

	Nine Months Ended September 30,
	2011			2010
	(In Thousands)
Beginning balance as of December 31 of
the preceding year	$	272,815		$	224,110
Activity in the period:
Accretion of liability		3,789			4,090
Retirement obligations incurred		-			-
Revisions in estimated cash flows		40,120			42,081
Settlement of retirement obligations		(183,129	)		(68,046	)
Ending balance as of September 30	$	133,595		$	202,235