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Other (Property Acquisitions and Disposals) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2013
Reagan and Upton Counties Acreage Purchase [Member]
acre
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Sep. 30, 2012
Borden County Acreage Purchase [Member]
acre
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Mar. 31, 2012
Borden County Acreage Purchase [Member]
acre
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Jun. 30, 2012
Southern Reagan County, Texas [Member]
acre
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Dec. 31, 2013
Medusa Field [Member]
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Dec. 31, 2013
Medusa Spar, LLC [Member]
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Dec. 31, 2013
Medusa Fields, Medusa Spar LLC, And Gulf Of Mexico Shelf Properties [Member]
|
Dec. 31, 2013
Swan Lake Field [Member]
|
Dec. 31, 2012
Habanero Field (Garden Banks Block 341) [Member]
|
Jun. 30, 2013
Southern Portion of Midland Basin [Member]
bbl
Oil_well
|
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| Significant Acquisitions and Disposals [Line Items] | ||||||||||
| Gas and Oil Area, Developed and Undeveloped, Gross | 2,468 | 8,095 | 16,233 | 2,319 | ||||||
| Gas and Oil Area, Developed and Undeveloped, Net | 2,186 | 6,964 | 14,653 | 1,762 | ||||||
| Business Combination, Consideration Transferred | $ 11,000 | $ 4,835 | $ 14,538 | $ 12,012 | ||||||
| Divestiture of Business, Percentage Of Business Sold | 15.00% | 10.00% | 69.00% | 11.25% | ||||||
| Divestiture of Business, Sales Price | $ 88,000 | $ 2,000 | $ 39,410 | |||||||
| Productive Oil Wells, Number of Wells, Gross | 7 | |||||||||
| Proved Developed Reserves (Volume) | 1,301,000 | |||||||||
| X | ||||||||||
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- Definition
Divestiture of Business, Percentage Of Business Sold No definition available.
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| X | ||||||||||
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- Definition
Divestiture of Business, Sales Price No definition available.
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| X | ||||||||||
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- Definition
Gas and Oil Area, Developed and Undeveloped, Gross No definition available.
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| X | ||||||||||
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- Definition
Gas and Oil Area, Developed and Undeveloped, Net No definition available.
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| X | ||||||||||
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- Definition
Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total number of producing oil wells and oil wells capable of production, in which the entity owns an undivided working interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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