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Asset Retirement Obligations (Tables) | 9 Months Ended
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Sep. 30, 2013
Asset Retirement Obligations [Abstract] |
Reconciliation of the total liability for asset retirement obligations | The following is a reconciliation of the total liability for asset retirement obligations:
|  | (In thousands) |
|  | September 30, |  |  | December 31, |
|  | 2013 |  |  | 2012 |
Beginning asset retirement obligation |  | $ | 686 |  |  | $ | 510 |
Accretion of discount |  |  | 28 |  |  |  | 34 |
Liabilities incurred |  |  | 61 |  |  |  | 142 |
Ending asset retirement obligation |  | $ | 775 |  |  | $ | 686 |
Mineral properties |  | $ | 171 |  |  | $ | 162 |
Oil & Gas wells |  |  | 604 |  |  |  | 524 |
Ending asset retirement obligation |  | $ | 775 |  |  | $ | 686 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + 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 + Details
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