XML 39 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6

Derivative Contracts (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012
Derivative [Line Items]
Fair Value	(1,800,295)
Crude Oil Swap | Derivative Instrument 1
Derivative [Line Items]
Monthly Volumes Bbls	1,933
Price per Bbl	76.74
Fair Value	(1,077,333)
Crude Oil Swap | Derivative Instrument 2
Derivative [Line Items]
Monthly Volumes Bbls	2,517
Price per Bbl	83.70
Fair Value	(722,962)
Crude Oil Swap | Minimum | Derivative Instrument 1
Derivative [Line Items]
Term	2013-01
Crude Oil Swap | Minimum | Derivative Instrument 2
Derivative [Line Items]
Term	2011-07
Crude Oil Swap | Maximum | Derivative Instrument 1
Derivative [Line Items]
Term	2014-12
Crude Oil Swap | Maximum | Derivative Instrument 2
Derivative [Line Items]
Term	2015-12

X

- Definition

Derivative, Maturity Month and Year

+ References

No definition available.

+ Details

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X

- Definition

The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts.

+ References

No definition available.

+ Details

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X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61797-109447



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61884-109447

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