Revenues (Summary of Disaggregation of Company's Natural Gas, Oil and NGL Revenues) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	$ 14,783,865	$ 8,345,825	$ 28,471,029	$ 14,770,804
Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	8,878,994	4,494,347	16,599,511	7,011,802
Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	5,904,871	3,851,478	11,871,518	7,759,002
Oil [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	4,711,706	3,144,921	8,287,810	5,485,987
Oil [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	2,550,462	1,717,069	4,444,489	2,814,021
Oil [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	2,161,244	1,427,852	3,843,321	2,671,966
NGL [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	1,536,166	827,807	2,957,190	1,452,919
NGL [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	707,508	410,851	1,333,131	641,189
NGL [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	828,658	416,956	1,624,059	811,730
Natural Gas [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	8,535,993	4,373,097	17,226,029	7,831,898
Natural Gas [Member] | Royalty Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	5,621,024	2,366,427	10,821,891	3,556,592
Natural Gas [Member] | Working Interest [Member]
Disaggregation Of Revenue [Line Items]
Natural gas, oil and NGL sales	$ 2,914,969	$ 2,006,670	$ 6,404,138	$ 4,275,306