Condensed Balance Sheets - USD ($)		Mar. 31, 2020	Sep. 30, 2019
Current assets:
Cash and cash equivalents		$ 498,777	$ 6,160,691
Oil, NGL and natural gas sales receivables (net of allowance for uncollectable accounts)		3,913,347	4,377,646
Refundable income taxes		3,401,870	1,505,442
Derivative contracts, net	[1]	4,216,915	2,256,639
Other		601,412	177,037
Total current assets		12,632,321	14,477,455
Properties and equipment at cost, based on successful efforts accounting:
Producing oil and natural gas properties		326,766,558	354,718,398
Non-producing oil and natural gas properties		19,030,785	14,599,023
Other		1,782,063	1,722,080
Gross properties and equipment, at cost, based on successful efforts accounting		347,579,406	371,039,501
Less accumulated depreciation, depletion and amortization		(261,599,529)	(259,314,590)
Net properties and equipment		85,979,877	111,724,911
Investments		151,752	205,076
Derivative contracts, net	[1]		237,505
Total assets		98,763,950	126,644,947
Current liabilities:
Accounts payable		810,095	665,160
Accrued liabilities and other		1,246,544	2,433,466
Total current liabilities		2,056,639	3,098,626
Long-term debt		32,000,000	35,425,000
Deferred income taxes, net		1,312,007	5,976,007
Asset retirement obligations		2,862,523	2,835,781
Stockholders' equity:
Class A voting common stock, $0.01666 par value; 24,000,500 shares authorized; 16,897,306 issued at March 31, 2020, and Class A voting common stock, $0.01666 par value; 24,000,000 shares authorized; 16,897,306 issued at September 30, 2019		281,509	281,509
Capital in excess of par value		3,264,383	2,967,984
Deferred directors' compensation		2,092,426	2,555,781
Retained earnings		62,447,346	81,848,301
Stockholders' Equity		68,085,664	87,653,575
Less treasury stock, at cost; 505,252 shares at March 31, 2020, and 558,051 shares at September 30, 2019		(7,552,883)	(8,344,042)
Total stockholders' equity		60,532,781	79,309,533
Total liabilities and stockholders' equity		$ 98,763,950	$ 126,644,947

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