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Asset Retirement Obligation (Tables)

3 Months Ended

Mar. 31, 2013

Changes to Company's Asset Retirement Obligations

The following table describes the changes to the Company’s asset retirement obligations during the three months ended March 31, 2013 and 2012 (in thousands):

		Three Months Ended March  31,
		2013				2012
Balance at beginning of year		$	4,422			$	3,455
Liabilities incurred			71				106
Liabilities settled			(13	)			(68	)
Accretion expense			41				37
Revision in estimated costs of plugging oil and natural gas wells			—				550
Asset retirement obligation at end of period		$	4,521			$	4,080

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- Definition

Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859

+ Details

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