Condensed Balance Sheets - USD ($)		Mar. 31, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents		$ 1,270,482	$ 10,690,395
Natural gas, oil, and NGL sales receivables (net of $0 allowance for uncollectable accounts)		4,712,793	2,943,220
Refundable income taxes		2,448,871	3,805,227
Other		752,248	351,088
Total current assets		9,184,394	17,789,930
Properties and equipment at cost, based on successful efforts accounting:
Producing natural gas and oil properties		329,708,071	324,886,491
Non-producing natural gas and oil properties		21,012,897	18,993,814
Other		582,444	582,444
Gross properties and equipment, at cost, based on successful efforts accounting		351,303,412	344,462,749
Less accumulated depreciation, depletion and amortization		(265,863,136)	(263,590,801)
Net properties and equipment		85,440,276	80,871,948
Operating lease right-of-use assets		649,500	690,316
Other, net		593,150	669,641
Total assets		95,867,320	100,021,835
Current liabilities:
Accounts payable		672,507	997,637
Derivative contracts, net	[1]	3,000,530	281,942
Current portion of operating lease liability		129,672	127,108
Accrued liabilities and other		1,382,066	1,297,363
Short-term debt			1,750,000
Total current liabilities		5,184,775	4,454,050
Long-term debt		23,500,000	27,000,000
Deferred income taxes, net		1,041,007	1,329,007
Asset retirement obligations		2,927,662	2,897,522
Derivative contracts, net	[1]	625,179	425,705
Operating lease liability, net of current portion		856,142	921,625
Stockholders' equity:
Class A voting common stock, $0.01666 par value; 36,000,500 shares authorized; 22,825,226 issued at March 31, 2021, and Class A voting common stock, $0.01666 par value; 24,000,500 shares authorized; 22,647,306 issued at September 30, 2020		380,268	377,304
Capital in excess of par value		11,150,749	10,649,611
Deferred directors' compensation		1,633,939	1,874,007
Retained earnings		54,402,724	56,244,100
Stockholders' Equity		67,567,680	69,145,022
Less treasury stock, at cost; 390,267 shares at March 31, 2021, and 411,487 shares at September 30, 2020		(5,835,125)	(6,151,096)
Total stockholders' equity		61,732,555	62,993,926
Total liabilities and stockholders' equity		$ 95,867,320	$ 100,021,835

[1] See Note 10: Fair Value Measurements for further disclosures regarding fair value of financial instruments.