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Asset Retirement Obligations (Details)		6 Months Ended	12 Months Ended
	Nov. 01, 2019 USD ($)	Dec. 31, 2020 USD ($) well	Jun. 30, 2020 USD ($) well
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligations — beginning of period		$ 2,588,894	$ 1,610,845
Liabilities incurred		0	944,278
Liabilities settled		(99,231)	(86,592)
Accretion of discount		87,853	146,504
Revision of previous estimates		91,430	(26,141)
Asset retirement obligations — end of period		2,668,946	2,588,894
Less: current asset retirement obligations		22,264	0
Long-term portion of asset retirement obligations		$ 2,646,682	$ 2,588,894
Delhi field
Property, Plant and Equipment [Line Items]
Abandoned wells | well		2	1
Hamilton Dome Field
Property, Plant and Equipment [Line Items]
Abandoned wells | well			4
Abandoned wells in next twelve months | well		2
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Liabilities incurred	$ 900,000

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Oil And Gas, Abandoned Well, Number Of Wells

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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of asset retirement obligations incurred during the period.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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