Condensed Statements Of Operations - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 9,782,337		$ 31,214,375
Gains (losses) on derivative contracts	2,313,195	$ (2,129,041)	5,026,123	$ (3,966,869)
Gain on asset sales	4,017,787		13,114,725
Revenues	16,342,394	9,557,937	50,307,601	33,469,721
Costs and expenses:
Lease operating expenses	3,148,960	3,233,172	9,241,708	10,077,449
Production taxes	488,779	485,157	1,565,038	1,471,970
Depreciation, depletion and amortization	4,383,043	4,619,509	11,820,705	14,136,411
Interest expense	526,677	420,896	1,551,831	1,288,426
General and administrative	1,809,439	1,593,251	5,881,432	5,247,584
Loss on asset sales and other expense (income)	66,260	190,045	82,045	110,859
Total costs and expenses	10,423,158	10,542,030	30,142,759	32,332,699
Income (loss) before provision (benefit) for income taxes	5,919,236	(984,093)	20,164,842	1,137,022
Provision (benefit) for income taxes	1,315,000	(209,000)	4,756,000	(12,943,000)
Net income (loss)	$ 4,604,236	$ (775,093)	$ 15,408,842	$ 14,080,022
Basic and diluted earnings (loss) per common share	$ 0.28	$ (0.05)	$ 0.92	$ 0.83
Basic and diluted weighted average shares outstanding:
Common shares	16,515,498	16,775,981	16,646,828	16,742,044
Unissued, directors' deferred compensation shares	170,066	206,202	183,206	205,867
Basic and diluted weighted average shares outstanding	16,685,564	16,982,183	16,830,034	16,947,911
Dividends declared per share of common stock and paid in period	$ 0.04	$ 0.04	$ 0.12	$ 0.12
Oil, NGL and Natural Gas [Member]
Revenues:
Revenues	$ 9,782,337	$ 11,202,680	$ 31,214,375	$ 36,356,135
Lease Bonuses and Rental Income [Member]
Revenues:
Revenues	$ 229,075	$ 484,298	$ 952,378	$ 1,080,455