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6. Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2017

Property and equipment:

Property and equipment

		March 31,				December 31,
		2017				2016
Property and equipment		$	128,155			$	140,547
Less: Accumulated depreciation and amortization			(109,710	)			(112,128	)
Total property and equipment, net		$	18,445			$	28,419

Depreciation, depletion, and amortization expense

		Three Months Ended
		March 31,
		2017				2016
Depletion of costs for evaluated oil and gas properties (1)		$	–			$	2,022,504
Depreciation and amortization of other property and equipment			3,100				3,885
Total depreciation, amortization and depletion		$	3,100			$	2,026,389

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- References

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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