XML 62 R15.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Asset Retirement Obligations | 3 Months Ended
--- | ---
Mar. 31, 2014
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligations | Asset Retirement Obligations The following table reflects the changes in the Company’s ARO during the three months ended March 31, 2014:
| (In thousands)
Balance at December 31, 2013 | $ | 36,458 |
Liabilities incurred during period | 1,401 |
Liabilities settled during period(1) | (1,974 | )
Accretion expense during period(2) | 445 |
Balance at March 31, 2014 | $ | 36,330 |
___________________
(1) | Liabilities settled during period represents ARO related to the properties sold in the Sanish Divestiture.
(2) | Included in depreciation, depletion and amortization on the Company’s Condensed Consolidated Statement of Operations.
At March 31, 2014, the current portion of the total ARO balance was approximately $0.5 million and is included in accrued liabilities on the Company’s Condensed Consolidated Balance Sheet.

X
- Details
Name: | us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 + Details
Name: | us-gaap_AssetRetirementObligationDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration