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Property Acquisition and Operating Leases (Narrative) (Details) (Horizontal Drilling Rig [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 1 Months Ended | |
|---|---|---|---|
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Mar. 31, 2013
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Feb. 28, 2011
Permian Basin [Member]
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Mar. 31, 2013
Early Termination Provision if Sub Lessor is Found [Member]
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| Property | |||
| Contracted drilling rig, term (in years) | 2 years | ||
| Operating lease payments | $ 2,271 | ||
| Operating Leases, Future Minimum Payments Due | |||
| Lease payments in 2013 due in current fiscal year | 9,235 | ||
| Lease payments in 2013 | 4,125 | ||
| Lease payments in 2013 in remainder of fiscal year | 6,964 | ||
| Lease payments in 2014 | $ 2,277 | $ 1,350 |
| X | ||||||||||
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- Definition
Gas and Oil, Contracted drilling rig, term No definition available.
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| X | ||||||||||
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- Definition
Operating Lease Payments No definition available.
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| X | ||||||||||
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- Definition
Operating Leases, Future Minimum Payments Due, Current Fiscal Year No definition available.
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| X | ||||||||||
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- Definition
Operating Leases, Future Minimum Payments Due, Remainder of Fiscal Year No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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