Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2014

Asset Retirement Obligation Disclosure [Abstract]

Summary of Changes in Asset Retirement Obligations

The following summarizes changes in the Company’s asset retirement obligations during the period (In thousands):

	2014
Asset retirement obligations at January 1	$	20,601
Accretion expense		1,349
Revisions in estimated liabilities		15,050
Asset retirement obligations at September 30	$	37,000

The table below shows the current and long-term portions of the Company's asset retirement obligations during the period (In thousands):

	2014
Asset retirement obligations, current portion	$	23,086
Asset retirement obligations, long-term portion		13,914
	$	37,000