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Property and Equipment (Details) $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($) $ / MMBTU $ / bbl	Jun. 30, 2022 USD ($) $ / bbl $ / MMBTU
Property and Equipment
Depletion	$ 13.1	$ 7.5
Capital expenditures	6.2	2.6
Proceeds for net revenues received	0.9
Impairment of proved property	$ 0.0	$ 0.0
Natural Gas and Natural Gas Liquids
Property and Equipment
Oil and gas prices first day average of twelve months of Henry Hub price for ceiling test | $ / MMBTU	4.78	5.19
Net price per barrel (in dollars per barrel) | $ / bbl	33.71	44.24
Crude oil
Property and Equipment
Oil and gas prices first day average of twelve months of West Texas Intermediate spot market price for ceiling test | $ / bbl	83.23	85.82
Maximum
Property and Equipment
Depreciation		$ 0.1

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