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WELLS FARGO RESERVE CREDIT FACILITY (Details) (Senior Secured Revolving Credit Facility [Member], USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Jul. 30, 2010
Line of Credit Facility [Line Items] |  |
Borrowing capacity | $ 100 |
Expiration date of senior credit facility | Jul. 30, 2014 |
Borrowing base | 30 | 12
Percentage of outstanding loans and loan commitments held by lenders required, minimum (in hundredths) | 67.00% |
Maturity term of senior credit facility | 6 months |
Commitment fee percentage (in hundredths) | 0.50% |
Principal negative financial covenants | The principal negative financial covenants (measured at various times as provided in the Credit Agreement) do not permit (i) the Interest Coverage Ratio (Interest Expense to EBITDAX) to be less than 3.0 to 1; (ii) Total Debt to EBITDAX to be greater than 3.5 to 1; and (iii) the Current Ratio (current assets plus unused lender commitments under the Borrowing Base) to be less than 1.0 to 1.0. |
Minimum Interest Coverage Ratio | 3.0 |
Maximum Total Debt to EBITDAX ratio | 3.5 |
Minimum Current Ratio | 1.0 |
Amount borrowed | $ 10 |
Federal Funds Effective Rate [Member] |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate (in hundredths) | 0.50% |
LIBO rate for the three prior months [Member] | Minimum [Member] |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate (in hundredths) | 2.25% |
LIBO rate for the three prior months [Member] | Maximum [Member] |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate (in hundredths) | 3.25% |

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- Definition Maximum total debt to EBITDAX ratio permitted under debt covenant agreement. EBITDAX is defined in the Credit Agreement as Consolidated Net Income, plus non-cash charges. + References No definition available. + Details
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- Definition Represents the minimum percentage of outstanding loans and loan commitments held by lenders required for the approval of Borrowing Base decrease and the request immediate loan payment upon default of loan. + References No definition available. + Details
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- Definition Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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