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Supplemental Disclosures about Oil and Natural Gas Producing Properties (unaudited) - Schedule of Costs Incurred and Capitalized in Oil and Natural Gas Property Acquisition, Exploration, and Development (Details) - USD ($)		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Property acquisition costs:
Proved property		$ 0	$ 0	$ 0
Unproved property	[1]	0	0	596,500
Exploration costs		0	0	0
Development costs		5,429,985	7,554,579	19,093,200
Total costs incurred for oil and natural gas activities		$ 5,429,985	$ 7,554,579	$ 19,689,700
[1] In connection with the June 2016 Delhi Field Litigation Settlement, we received a 23.9% working interest in the non-producing Mengel Interval with an estimated fair value of $596,500. This cost is included in properties subject to amortization.

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Represents the cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties, exploration and development costs.

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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves.

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Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves.

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Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

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