Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2011	Sep. 30, 2010
Current assets:
Cash and cash equivalents	$ 5,623,125	$ 5,597,258
Oil and natural gas sales receivables, net of allowance for uncollectible accounts	8,409,724	9,063,002
Derivative contracts	292,759	1,481,527
Refundable income taxes	878,860	0
Refundable production taxes	284,730	804,120
Other	77,845	412,778
Total current assets	15,567,043	17,358,685
Properties and equipment, at cost, based on successful efforts accounting:
Producing oil and natural gas properties	222,650,712	207,928,578
Non-producing oil and natural gas properties	10,686,973	9,616,330
Furniture and fixtures	667,432	656,889
Total properties and equipment, at cost, based on successful efforts accounting	234,005,117	218,201,797
Less accumulated depreciation, depletion and amortization	142,590,914	131,983,249
Net properties and equipment	91,414,203	86,218,548
Investments	625,341	754,208
Derivative contracts	0	138,799
Refundable production taxes	1,214,795	654,599
Total assets	108,821,382	105,124,839
Current liabilities:
Accounts payable	5,558,643	5,062,806
Deferred income taxes	19,100	354,100
Accrued income taxes	0	922,136
Other liabilities	962,583	920,782
Total current liabilities	6,540,326	7,259,824
Deferred income taxes	24,235,650	22,552,650
Asset retirement obligations	1,750,938	1,730,369
Derivative contracts	21,310	0
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 8,431,502 issued at June 30, 2011, and September 30, 2010	140,524	140,524
Capital in excess of par value	1,922,029	1,816,365
Deferred directors' compensation	2,552,459	2,222,127
Retained earnings	77,706,189	73,599,733
Total stockholders' equity	82,321,201	77,778,749
Less treasury stock, at cost; 186,041 shares at June 30, 2011, and 120,560 at September 30, 2010	(6,048,043)	(4,196,753)
Total stockholders' equity	76,273,158	73,581,996
Total liabilities and stockholders' equity	$ 108,821,382	$ 105,124,839