Condensed Statements Of Operations - USD ($)	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Revenues	$ 12,210,719
Gains (losses) on derivative contracts	4,506,780	$ (493,852)
Gain on asset sales	9,096,938
Revenues	26,328,994	12,490,526
Costs and expenses:
Lease operating expenses	3,104,570	3,626,709
Production taxes	608,951	488,990
Depreciation, depletion and amortization	3,813,686	5,275,824
Interest expense	539,370	431,579
General and administrative	1,938,840	1,888,143
Loss on asset sales and other expense (income)	16,637	(295,658)
Total costs and expenses	10,022,054	11,415,587
Income (loss) before provision (benefit) for income taxes	16,306,940	1,074,939
Provision (benefit) for income taxes	3,571,000	(12,710,000)
Net income (loss)	$ 12,735,940	$ 13,784,939
Basic and diluted earnings (loss) per common share	$ 0.75	$ 0.81
Basic and diluted weighted average shares outstanding:
Common shares	16,745,076	16,685,032
Unissued, directors' deferred compensation shares	213,932	263,255
Basic and diluted weighted average shares outstanding	16,959,008	16,948,287
Dividends declared per share of common stock and paid in period	$ 0.04	$ 0.04
Dividends declared per share of common stock and to be paid in quarter ended March 31	$ 0.04	$ 0.04
Oil, NGL and Natural Gas [Member]
Revenues:
Revenues	$ 12,210,719	$ 12,887,419
Lease Bonuses and Rental Income [Member]
Revenues:
Revenues	$ 514,557	$ 96,959