The entire disclosure related to unproved oil and gas properties.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 360

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 12.A.3(b))

-URI http://asc.fasb.org/extlink&oid=6601679&loc=d3e516343-122869

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 12

-Section A

-Paragraph b

-Subsection 3

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