Property and Equipment - Schedule of oil and natural gas properties and other property and equipment (Details) - USD ($)	3 Months Ended
Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020
Oil and natural gas properties:
Property costs subject to amortization	$ 129,402,638	$ 129,123,227
Less: Accumulated depreciation, depletion, amortization and impairment	(72,033,235)	(70,607,367)
Oil and natural gas properties, net	57,369,403	58,515,860
Other property and equipment:
Furniture, fixtures, and office equipment, at cost	154,731	154,731
Less: Accumulated depreciation, depletion, amortization and impairment	(145,176)	(144,092)
Other property and equipment, net	9,555	10,639
Depletion	1,425,868	1,247,659
Impairment of proved property	0	0	$ 9,602,620
Depreciation	$ 1,084	$ 1,570

The noncash expense charged against earnings to recognize the consumption of natural resources.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

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Depletion of oil and gas property carried under the full cost method.

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Oil and gas properties, gross, carried under the full cost method.

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Oil and gas properties, net of depletion, carried under the full cost method.

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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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Amount of accumulated depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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Amount after depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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