Supplementary Information On Natural Gas, Oil And NGL Reserves (Summary of Changes in Standardized Measure of Discounted Future Net Cash Flows) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Extractive Industries [Abstract]
Beginning Balance	$ 31,134,153	$ 85,561,529	$ 156,325,854
Sales of natural gas, oil and NGL, net of production costs	(25,812,485)	(12,692,681)	(25,072,122)
Net change in sales prices and production costs	43,951,090	(46,499,344)	(76,588,460)
Net change in future development and asset retirement costs	49,542	(20,571)	43,607,535
Extensions and discoveries	803,714	2,841,807	7,074,245
Revisions of quantity estimates	33,482,964	(28,332,653)	(60,308,497)
Acquisitions (divestitures) of reserves-in-place	9,041,028	1,169,819	(3,134,783)
Accretion of discount	3,893,028	11,039,792	20,457,930
Net change in income taxes	(13,937,867)	17,037,980	23,413,194
Change in timing and other, net	(7,814,825)	1,028,475	(213,367)
Net change	43,656,189	(54,427,376)	(70,764,325)
Ending Balance	$ 74,790,342	$ 31,134,153	$ 85,561,529