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

3 Months Ended

Mar. 31, 2013

Debt Disclosure [Abstract]

Long-Term Debt

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

	March 31, 2013		December 31, 2012
	(In thousands)
Credit agreement with an average interest rate of 2.0% and 2.9% at March 31, 2013 and December 31, 2012, respectively	$	70,000	$	71,100
6.625% senior subordinated notes due 2021, net of unamortized discount of $4.6 million and $4.7 million at March 31, 2013 and December 31, 2012, respectively	645,365		645,259
Total long-term debt	$	715,365	$	716,359

Other Long-Term Liabilities

Other long-term liabilities consisted of the following:

	March 31, 2013		December 31, 2012
	(In thousands)
Asset retirement obligation (ARO) liability	$	135,592	$	146,159
Workers’ compensation	19,133		18,517
Separation benefit plans	8,235		7,972
Gas balancing liability	3,838		3,838
Deferred compensation plan	3,115		2,779
	169,913		179,265
Less current portion	12,484		12,282
Total other long-term liabilities	$	157,429	$	166,983