Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2014

Summary of Changes in Asset Retirement Obligations

The following summarizes changes in the Company’s asset retirement obligations during the three months ended March 31, 2014:

	2014
	(In thousands)
Carrying amount at January 1	$	20,601
Accretion expense		440
Carrying amount at March 31	$	21,041