Condensed Statements of Operations (Unaudited) (USD $)	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Oil, NGL and natural gas sales	$ 12,758,954	$ 11,744,277
Lease bonuses and rentals	374,392	1,755,191
Gains (losses) on derivative contracts	892,693	(222,079)
Income from partnerships	154,396	126,944
	14,180,435	13,404,333
Costs and expenses:
Lease operating expenses	3,296,562	2,264,912
Production taxes	303,553	438,499
Exploration costs	19,767	313,370
Depreciation, depletion and amortization	5,639,020	4,142,413
Provision for impairment	154,965	363,547
Loss (gain) on asset sales, interest and other	43,186	(77,041)
General and administrative	1,898,084	1,697,523
	11,355,137	9,143,223
Income before provision for income taxes	2,825,298	4,261,110
Provision for income taxes	677,000	849,000
Net income	$ 2,148,298	$ 3,412,110
Basic and diluted earnings per common share (Note 3) (in Dollars per share)	$ 0.26	$ 0.41
Basic and diluted weighted average shares outstanding:
Common shares (in Shares)	8,250,109	8,256,171
Unissued, directors' deferred compensation shares (in Shares)	122,285	130,654
(in Shares)	8,372,394	8,386,825
Dividends declared per share of common stock and paid in period (in Dollars per share)	$ 0.07	$ 0.07
Dividends declared per share of common stock and to be paid in quarter ended March 31 (in Dollars per share)	$ 0.07	$ 0.07
Scenario, Forecast [Member]
Basic and diluted weighted average shares outstanding:
Dividends declared per share of common stock and paid in period (in Dollars per share)	$ 0.07	$ 0.07
Dividends declared per share of common stock and to be paid in quarter ended March 31 (in Dollars per share)	$ 0.07	$ 0.07