Condensed Balance Sheets - USD ($)		Dec. 31, 2020	Sep. 30, 2020
Current assets:
Cash and cash equivalents		$ 1,163,818	$ 10,690,395
Natural gas, oil, and NGL sales receivables (net of allowance for uncollectable accounts)		3,793,159	2,943,220
Refundable income taxes		3,817,772	3,805,227
Other		1,195,774	351,088
Total current assets		9,970,523	17,789,930
Properties and equipment at cost, based on successful efforts accounting:
Producing natural gas and oil properties		329,648,805	324,886,491
Non-producing natural gas and oil properties		22,101,506	18,993,814
Other		582,444	582,444
Gross properties and equipment, at cost, based on successful efforts accounting		352,332,755	344,462,749
Less accumulated depreciation, depletion and amortization		(265,704,923)	(263,590,801)
Net properties and equipment		86,627,832	80,871,948
Operating lease right-of-use assets		670,065	690,316
Other, net		630,429	669,641
Total assets		97,898,849	100,021,835
Current liabilities:
Accounts payable		536,972	997,637
Derivative contracts, net	[1]	1,189,277	281,942
Current portion of operating lease liability		149,922	127,108
Accrued liabilities and other		1,254,061	1,297,363
Short-term debt			1,750,000
Total current liabilities		3,130,232	4,454,050
Long-term debt		27,000,000	27,000,000
Deferred income taxes, net		1,260,007	1,329,007
Asset retirement obligations		2,919,495	2,897,522
Derivative contracts, net	[1]	385,720	425,705
Operating lease liability, net of current portion		867,509	921,625
Stockholders' equity:
Class A voting common stock, $0.01666 par value; 24,000,500 shares authorized; 22,800,681 issued at December 31, 2020, and 22,647,306 issued at September 30, 2020		379,859	377,304
Capital in excess of par value		10,678,906	10,649,611
Deferred directors' compensation		1,918,534	1,874,007
Retained earnings		55,192,444	56,244,100
Stockholders' Equity		68,169,743	69,145,022
Less treasury stock, at cost; 390,267 shares at December 31, 2020, and 411,487 shares at September 30, 2020		(5,833,857)	(6,151,096)
Total stockholders' equity		62,335,886	62,993,926
Total liabilities and stockholders' equity		$ 97,898,849	$ 100,021,835

[1] See Note 11: Fair Value Measurements for further disclosures regarding fair value of financial instruments.