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Acquisition and Development Agreement and Carry and Earning Agreement (Details) - Mitsui E&P Texas LP $ in Millions | Jun. 30, 2011 USD ($)
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Acquisition and Development Agreement [Abstract] |
Percentage of Working Interests Transferred to Acquirer Entity | 12.50%
Acreage of Working Interests Transferred to Acquirer Entity | 39,000
Percentage of the entity's costs and expenses during the first three years following the closing of the transaction, borne by the acquirer entity (as a percent) | 90.00%
Costs and expenses incurred by acquiree entity on behalf of entity that the acquirer entity has agreed to pay | $ 680.0
Portion of Drilling and Completion Costs Not Carried by Acquirer | 10.00%

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- Definition Represents the acreage of working interests transferred to acquirer entity. + References No definition available. + Details
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- Definition Represents the costs and expenses incurred by acquiree entity on behalf of entity which the acquirer entity would repay on a proportionate basis. + References No definition available. + Details
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- Definition Represents the percentage of costs incurred by the entity, which the acquirer entity has agreed to bear for first three years following the closing of transaction. + References No definition available. + Details
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- Details
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