Supplementary Information On Natural Gas, Oil And NGL Reserves (Summary of Capitalized Costs of Natural Gas and Oil Properties and Related Depreciation, Depletion and Amortization) (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020
Extractive Industries [Abstract]
Producing properties	$ 319,984,874	$ 324,886,491
Non-producing minerals	38,328,699	18,808,689
Non-producing leasehold	2,137,399	185,125
Gross capitalized costs	360,450,972	343,880,305
Accumulated depreciation, depletion and amortization	(257,250,452)	(263,277,422)
Net capitalized costs	$ 103,200,520	$ 80,602,883