Condensed Statements Of Operations - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Revenues	$ 9,221,319		$ 21,432,038
Gains (losses) on derivative contracts	(1,793,852)	$ (1,343,976)	2,712,928	$ (1,837,828)
Gain on asset sales			9,096,938
Revenues	7,636,213	11,421,258	33,965,207	23,911,784
Costs and expenses:
Lease operating expenses	2,988,178	3,217,568	6,092,748	6,844,277
Production taxes	467,308	497,823	1,076,259	986,813
Depreciation, depletion and amortization	3,623,976	4,241,078	7,437,662	9,516,902
Interest expense	485,784	435,951	1,025,154	867,530
General and administrative	2,133,153	1,766,190	4,071,993	3,654,333
Loss on asset sales and other expense (income)	(852)	216,472	15,785	(79,186)
Total costs and expenses	9,697,547	10,375,082	19,719,601	21,790,669
Income (loss) before provision (benefit) for income taxes	(2,061,334)	1,046,176	14,245,606	2,121,115
Provision (benefit) for income taxes	(130,000)	(24,000)	3,441,000	(12,734,000)
Net income (loss)	$ (1,931,334)	$ 1,070,176	$ 10,804,606	$ 14,855,115
Basic and diluted earnings (loss) per common share	$ (0.11)	$ 0.06	$ 0.64	$ 0.87
Basic and diluted weighted average shares outstanding:
Common shares	16,679,187	16,766,010	16,712,493	16,725,076
Unissued, directors' deferred compensation shares	183,206	205,867	217,704	267,005
Basic and diluted weighted average shares outstanding	16,862,393	16,971,877	16,930,197	16,992,081
Dividends declared per share of common stock and paid in period	$ 0.04	$ 0.04	$ 0.08	$ 0.08
Oil, NGL and Natural Gas [Member]
Revenues:
Revenues	$ 9,221,319	$ 12,266,036	$ 21,432,038	$ 25,153,455
Lease Bonuses and Rental Income [Member]
Revenues:
Revenues	$ 208,746	$ 499,198	$ 723,303	$ 596,157