Name:	us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesAbstract
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The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_DepletionOfOilAndGasProperties
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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 35
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=28370743&loc=d3e66150-109466

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_ImpairmentOfOilAndGasProperties
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Data Type:	xbrli:monetaryItemType
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Oil and gas properties, gross, carried under the full cost method.

No definition available.

Name:	us-gaap_OilAndGasPropertyFullCostMethodGross
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Oil and gas properties, net of depletion, carried under the full cost method.

No definition available.