Long-Term Debt And Other Long-Term Liabilities (Tables)

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Long-Term Debt

As of the dates in the table, long-term debt consisted of the following:

	September 30, 2012		December 31, 2011
	(In thousands)
Credit agreement with an average interest rate of 2.7% at December 31, 2011	$	—	$	50,000
6.625% senior subordinated notes due 2021, net of unamortized discount of $4.8 million at September 30, 2012	645,154		250,000
Total long-term debt	$	645,154	$	300,000

Other Long-Term Liabilities

Other long-term liabilities consisted of the following:

	September 30, 2012		December 31, 2011
	(In thousands)
Asset retirement obligation (ARO) liability	$	144,849	$	96,446
Workers’ compensation	17,267		17,026
Separation benefit plans	7,484		6,845
Gas balancing liability	3,263		3,263
Deferred compensation plan	2,720		2,463
	175,583		126,043
Less current portion	11,413		12,213
Total other long-term liabilities	$	164,170	$	113,830