Area of land held.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228

Reference 2: 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=56944662&loc=d3e3602-108585

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- Definition

The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties.

+ References

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=56944662&loc=d3e3602-108585

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Oil and Gas Assets (Details Narrative)	3 Months Ended		9 Months Ended
Oil and Gas Assets (Details Narrative)	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)	Jan. 31, 2016 USD ($)	Jan. 31, 2015 USD ($)	Jan. 19, 2016 USD ($) a	Oct. 15, 2015	May. 30, 2014 a
Disposals	$ (7,519,460)		$ (7,519,460)
Interest rate						100.00%
Impairment charge			$ 6,870,613
Missouri [Member]
Disposals
Impairment charge			$ 918,991
Oklahoma Bandolier [Member]
Disposals			279,013
Area of land \| a							10,600
Impairment charge			5,951,622
Petro UK [Member]
Escrow deposit					$ 735,798
Total deposit cost to drill the first well	6,159,452		6,159,452
Horizon Energy [Member]
Interest rate					20.00%
Brigantes Energy Limited [Member]
Interest rate					10.00%
Southwestern Resources Ltd [Member]
Interest rate					16.00%
Larne Basin [Member]
Interest rate					9.00%
Area of land \| a					130,000
Kansas [Member]
Disposals	$ 7,519,460		$ 7,727,287