The rights to all oil and gas below designated feet above the top of the uppermost J Sand formation, per the agreement.

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Gross gas and oil area in which the entity owns a working interest.

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The net purchase price to acquire oil and gas property.

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The percentage of working interest for well embedded in the lease arrangement.

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The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The total number of productive oil wells and oil wells capable of production which access multiple reservoirs through one well bore, in which the entity owns a fractional working interest.

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CRUDE OIL AND NATURAL GAS PROPERTIES - Other Acquisitions (Details)									12 Months Ended
	Sep. 15, 2017 USD ($) a	May 09, 2017 USD ($) a	Apr. 21, 2017 USD ($) a $ / shares shares	Apr. 03, 2017 USD ($) a ft $ / shares shares	Oct. 14, 2016 USD ($) item	Apr. 14, 2016 USD ($) a	Mar. 31, 2016 USD ($) a item	Mar. 10, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 13, 2016 a
Acquisitions
Payment to acquire									$ 3,202,380	$ 2,854,475
Amount borrowed on line of credit to fund acquisition										$ 7,105,000
Adams County, Colorado
Acquisitions
Acres, gross \| a		200
Acres, net \| a		70
Percentage of working interest partner’s participation		50.00%
Payment to acquire		$ 400,000
Surface Rights and Easements on Lands \| Todd Creek Farms
Acquisitions
Payment to acquire								$ 200,000
Oil and Gas Leases \| Adams and Weld Counties, Colorado
Acquisitions
Acres, gross \| a	400			5,874
Acres, net \| a	200			1,462
Number of feet seller retained all rights \| ft				50
Net cost for oil and gas property				$ 1,300,000
Working interest partner’s participation	$ 200,000
Percentage of working interest partner’s participation	50.00%			50.00%
Payment to acquire	$ 400,000			$ 500,000
Equity interest issuable under acquisition				$ 800,000
Issuance of common stock for property acquisition, Shares \| shares				450,000
Share price (in dollars per share) \| $ / shares				$ 1.80
Oil and Gas Leases \| Todd Creek Farms
Acquisitions
Acres, net \| a						189
Purchase price						$ 300,000
Oil and Gas Assets \| Land Adjacent to Todd Creek Farms
Acquisitions
Acres, net \| a							160
Working interest in well (as a percent)							50.00%
Payment to acquire							$ 600,000
Number of producing wells \| item							1
Royalty Interests \| Adams County, Colorado
Acquisitions
Percentage of royalty			9.37%
Acres, net \| a			145
Percentage of working interest partner’s participation			50.00%
Payment to acquire			$ 600,000
Issuance of common stock for property acquisition, Shares \| shares			20,555
Share price (in dollars per share) \| $ / shares			$ 1.80
Royalty Interests \| Todd Creek Farms
Acquisitions
Payment to acquire					$ 1,600,000
Number of producing wells \| item					10
Supplemental line of credit \| Oil and Gas Leases \| Wattenberg Field \| Providence Energy Partners III, LP (PEP III)
Acquisitions
Acres, gross \| a											278
Acres, net \| a											170
Working interest in well (as a percent)											10.00%