Property and Lease Options	12 Months Ended
Dec. 31, 2016
Notes to Financial Statements
3. Property and Lease Options	In 2015, the Company acquired exclusive options to enter into two separate oil and gas leases with respect to 160,000 gross acres of mineral interests primarily in South Dakota. The Company conducted geological and geophysical studies of the prospective acreage to identify potential areas for seismic surveys, geochemical imaging surveys and satellite and gravity studies to identify certain areas within the acreage for prospect development. The Company did not pursue exercising either option during 2016 and determined it more likely than not that the options will not be exercised. The lease options are expected to have no residual value upon expiration in April, 2017 and, based on the indication of impairment that occurred during the year, the carrying value of the options were adjusted to zero as of December 31, 2016.

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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 210.5-02.13-14)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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