Revenues (Summary Of Disaggregation Of Company's Natural Gas, Oil and NGL Revenues) (Details)	12 Months Ended
	Sep. 30, 2021 USD ($)
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	$ 37,749,044
Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	18,432,035
Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	19,317,009
Oil [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	12,700,885
Oil [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	6,787,084
Oil [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	5,913,801
NGL [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	4,081,151
NGL [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	1,752,877
NGL [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	2,328,274
Natural Gas [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	20,967,008
Natural Gas [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	9,892,074
Natural Gas [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	$ 11,074,934