Condensed Balance Sheets (USD $)	Mar. 31, 2012	Sep. 30, 2011
Current assets:
Cash and cash equivalents	$ 1,119,676	$ 3,506,999
Oil and natural gas sales receivables	6,950,126	8,811,404
Deferred income taxes	26,900	0
Refundable income taxes	0	354,246
Refundable production taxes	479,621	223,672
Derivative contracts	309,658	269,329
Other	195,792	95,408
Total current assets	9,081,773	13,261,058
Properties and equipment, at cost, based on successful efforts accounting:
Producing oil and natural gas properties	260,460,706	230,554,198
Non-producing oil and natural gas properties	9,889,633	11,100,350
Furniture and fixtures	655,201	628,929
Total properties and equipment, at cost, based on successful efforts accounting	271,005,540	242,283,477
Less accumulated depreciation, depletion and amortization	(155,307,113)	(146,147,514)
Net properties and equipment	115,698,427	96,135,963
Investments	823,028	667,504
Refundable production taxes	1,031,146	1,359,668
Total assets	126,634,374	111,424,193
Current liabilities:
Accounts payable	3,399,998	4,899,593
Deferred income taxes	0	7,100
Income taxes payable	283,863	0
Accrued liabilities and other	1,024,793	1,040,269
Total current liabilities	4,708,654	5,946,962
Long-term debt	13,809,501	0
Deferred income taxes	25,170,393	24,777,650
Asset retirement obligations	1,934,291	1,843,875
Derivative contracts	0	53,389
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 8,431,502 issued at March 31, 2012 and September 30, 2011	140,524	140,524
Capital in excess of par value	1,844,004	1,924,507
Deferred directors' compensation	2,475,538	2,665,583
Retained earnings	82,698,964	79,771,563
Total stockholders' equity	87,159,030	84,502,177
Less treasury stock, at cost; 191,970 shares at March 31, 2012 and 175,331 shares at September 30, 2011	(6,147,495)	(5,699,860)
Total stockholders' equity	81,011,535	78,802,317
Total liabilities and stockholders' equity	$ 126,634,374	$ 111,424,193