Condensed Statements Of Cash Flows - USD ($)	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Activities
Net income (loss)	$ (596,720)	$ 1,892,114
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	2,260,649	2,955,701
Provision for deferred income taxes	(69,000)	658,000
Gain from leasing fee mineral acreage	(232)	(523,384)
Proceeds from leasing fee mineral acreage	232	537,777
Net (gain) loss on sales of assets	(30,862)	(3,272,888)
Directors' deferred compensation expense	44,527	86,213
Total (gain) loss on derivative contracts	254,036	817,894
Cash receipts (payments) on settled derivative contracts	613,314	901,773
Restricted stock awards	122,978	148,515
Other	14,387	8,896
Cash provided (used) by changes in assets and liabilities:
Natural gas, oil and NGL sales receivables	(813,167)	56,160
Other current assets	(676,620)	(407,610)
Accounts payable	(398,556)	(73,831)
Income taxes receivable	(12,545)	(412,073)
Other non-current assets	30,958	1,090
Accrued liabilities	(271,998)	(1,275,906)
Total adjustments	1,068,101	206,327
Net cash provided by operating activities	471,381	2,098,441
Investing Activities
Capital expenditures	(128,083)	(105,265)
Acquisition of minerals and overrides	(7,869,746)	(10,172,594)
Proceeds from sales of assets		3,376,049
Net cash provided (used) by investing activities	(7,997,829)	(6,901,810)
Financing Activities
Borrowings under Credit Facility		4,774,297
Payments of loan principal	(1,750,000)	(5,199,297)
Net proceeds from equity issuance	(24,242)
Purchases of treasury stock		(7,635)
Payments of dividends	(225,887)	(655,980)
Net cash provided (used) by financing activities	(2,000,129)	(1,088,615)
Increase (decrease) in cash and cash equivalents	(9,526,577)	(5,891,984)
Cash and cash equivalents at beginning of period	10,690,395	6,160,691
Cash and cash equivalents at end of period	1,163,818	268,707
Supplemental Schedule of Noncash Investing and Financing Activities:
Dividends declared and unpaid	229,049	663,919
Additions to asset retirement obligations		4
Gross additions to properties and equipment	7,986,350	10,164,680
Equity offering used for acquisitions	(250,000)
Net (increase) decrease in accounts payable for properties and equipment additions	261,479	113,179
Capital expenditures and acquisitions	$ 7,997,829	$ 10,277,859