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

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Long-Term Debt

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

	June 30, 2013		December 31, 2012
	(In thousands)
Credit agreement with an average interest rate of 1.9% and 2.9% at June 30, 2013 and December 31, 2012, respectively	$	70,000	$	71,100
6.625% senior subordinated notes due 2021, net of unamortized discount of $4.5 million at June 30, 2013 and $4.7 million at December 31, 2012	645,474		645,259
Total long-term debt	$	715,474	$	716,359

Other Long-Term Liabilities

Other long-term liabilities consisted of the following:

	June 30, 2013		December 31, 2012
	(In thousands)
Asset retirement obligation (ARO) liability	$	137,039	$	146,159
Workers’ compensation	20,424		18,517
Separation benefit plans	8,562		7,972
Gas balancing liability	3,838		3,838
Deferred compensation plan	3,180		2,779
	173,043		179,265
Less current portion	12,136		12,282
Total other long-term liabilities	$	160,907	$	166,983