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Commitments and Contingencies (Commitments) (Details) (USD $) | 0 Months Ended |  |  |  | 0 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Nov. 02, 2012 | Jun. 30, 2013 | Dec. 31, 2012 | Jun. 30, 2013 Grizzly [Member] | Jun. 30, 2013 Executive Officer [Member] | Mar. 11, 1997 WCBB [Member] wells | Jun. 30, 2013 WCBB [Member] wells
Commitments [Line Items] |  |  |  |  |  |  |
Percentage of interest in WCBB |  |  |  |  |  | 50.00% |
Contribution to plugging and abandonment trust |  |  |  |  |  | $ 18,000 |
Annual minimum wells to be plugged |  |  |  |  |  | 20 |
Tenure of minimum wells to be plugged, years |  |  |  |  |  | 20 years |
Plugging and abandonment escrow account |  | 3,105,000 | 3,113,000 |  |  |  |
Number of wells plugged |  |  |  |  |  |  | 354
Employment agreement | 3 years |  |  |  |  |  |
Extension period | 1 year |  |  |  |  |  |
Notice period | 90 days |  |  |  |  |  |
Other Commitment |  |  |  | $ 6,500,000 | $ 4,900,000 |  |

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- Definition Employment Agreement, Notice Period Allowed For Termination + References No definition available. + Details
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- Definition Employment Agreement, Subsequent Extension + References No definition available. + Details
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- Definition Employment Agreement, Term + References No definition available. + Details
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- Definition Number Of Wells Plugged + References No definition available. + Details
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- Definition payments to plugging and abandonment escrow account. + References No definition available. + Details
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- Definition Plugging And Abandonment Escrow Account + References No definition available. + Details
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- Definition Purchasing remaining percent interest in oil and gas property. + References No definition available. + Details
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- Definition Minimum number of wells required to be plugged annually. + References No definition available. + Details
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- Definition Tenure of minimum wells to be plugged + References No definition available. + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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