Property and Equipment (Details) - USD ($)	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Oil and natural gas properties
Property costs subject to amortization	$ 96,247,547		$ 95,622,153
Less: Accumulated depreciation, depletion, and amortization	(36,693,441)		(35,275,687)
Unproved properties not subject to amortization	0		0
Oil and natural gas properties, net	59,554,106		60,346,466
Other property and equipment
Furniture, fixtures, office equipment and other, at cost	154,731		154,731
Less: Accumulated depreciation	(130,635)		(128,313)
Other property and equipment, net	24,096		$ 26,418
Delhi field
Other property and equipment
Capital expenditures	$ 600,000	$ 2,700,000

Future cash outflow to pay for purchases of fixed assets that have occurred.

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The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.

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Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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