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Fair Value Measurements - Textuals (Details)
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12 Months Ended | |
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Jun. 30, 2013
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Jun. 30, 2012
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Rolling production average | 60 days | |
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Nautilus Poplar, LLC (NP)
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Additional working interest acquired | 3.00% | |
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Level 3
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Discount rate | 8.00% | 8.00% |
| X | ||||||||||
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- Definition
Business Acquisition, Working Interest Percentage, Increase No definition available.
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| X | ||||||||||
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- Definition
Future Production Bonus, Rolling Production Average No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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