Properties And Equipment - Summary of Divestitures (Details)		3 Months Ended					12 Months Ended
		Sep. 30, 2022 USD ($) a Well	Jun. 30, 2022 USD ($) a Well	Mar. 31, 2022 USD ($) a	Dec. 31, 2021 USD ($) Well	Jun. 30, 2021 USD ($) a	Sep. 30, 2022 USD ($) a Well	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Property Plant And Equipment [Line Items]
Sale Price							$ 13,217,844	$ 988,600	$ 4,228,868
TX
Property Plant And Equipment [Line Items]
Net mineral acres | a	[1],[2]	87	43	130			87
Sale Price	[3]	$ 100,000	$ 100,000	$ 500,000
Gain/(Loss)	[3]	$ 100,000	$ 100,000	$ 500,000
OK
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]	5	9		98		5
Sale Price	[3]	$ 100,000	$ 300,000		$ 2,000,000.0
Gain/(Loss)	[3]		$ 100,000		$ (3,500,000)
OK
Property Plant And Equipment [Line Items]
Net mineral acres | a	[1],[2]		83
Sale Price	[3]		$ 100,000
Gain/(Loss)	[3]		$ 100,000
OK
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]		16
Sale Price	[3]		$ 100,000
OK
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]		2
Sale Price	[3]		$ 100,000
Gain/(Loss)	[3]		$ 100,000
AR / OK / TX
Property Plant And Equipment [Line Items]
Net mineral acres | a	[1],[2]		2,255
Sale Price	[3]		$ 300,000
Gain/(Loss)	[3]		$ 300,000
NM / TX
Property Plant And Equipment [Line Items]
Net mineral acres | a	[1],[2]			7,071
Sale Price	[3]			$ 1,600,000
Gain/(Loss)	[3]			$ 1,600,000
OK / TX
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]				95
Sale Price	[3]				$ 500,000
Gain/(Loss)	[3]				$ 200,000
AR
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]	210			499		210
Sale Price	[3]	$ 5,000,000.0			$ 2,100,000
Gain/(Loss)	[3]	$ 3,500,000			$ 1,100,000
ND
Property Plant And Equipment [Line Items]
Wellbores | Well	[1],[2]	9					9
Sale Price	[3]	$ 200,000
Gain/(Loss)	[3]	$ 100,000
Central Basin Platform, TX [Member]
Property Plant And Equipment [Line Items]
Net mineral acres | a	[1],[2]					2,857
Sale Price	[3]					$ 300,000
Gain/(Loss)	[3]					$ 200,000

[1] Number of gross wellbores associated with working interests sold.

[2] Number of net mineral acres sold.

[3] Sales price and gain(loss) is net of purchase price adjustment.