Condensed Balance Sheets (USD $)	Dec. 31, 2013		Sep. 30, 2013
Current Assets:
Cash and cash equivalents	$ 294,961		$ 2,867,171
Oil, NGL and natural gas sales receivables	14,677,736		13,720,761
Refundable production taxes	708,506		662,051
Derivative contracts			425,198	[1]
Other	165,811		129,998
Total current assets	15,847,014		17,805,179
Properties and equipment at cost, based on successful efforts accounting:
Producing oil and natural gas properties	314,483,789		304,889,145
Non-producing oil and natural gas properties	8,873,666		8,932,905
Furniture and fixtures	737,929		737,368
Total properties and equipment, at cost, based on successful efforts accounting	324,095,384		314,559,418
Less accumulated depreciation, depletion and amortization	(191,820,197)		(186,641,291)
Net properties and equipment	132,275,187		127,918,127
Investments	1,663,320		1,574,642
Refundable production taxes	440,203		540,482
Total assets	150,225,724		147,838,430
Current Liabilities:
Accounts payable	7,168,398		8,409,634
Derivative contracts	466,772	[1]
Deferred income taxes	84,100		127,100
Income taxes payable	1,840,342		751,992
Accrued liabilities and other	1,203,080		1,011,865
Total current liabilities	10,762,692		10,300,591
Long-term debt	6,000,000		8,262,256
Deferred income taxes	31,595,907		31,226,907
Asset retirement obligations	2,477,441		2,393,190
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 8,431,502 issued at December 31, 2013, and September 30, 2013	140,524		140,524
Capital in excess of par value	2,456,303		2,587,838
Deferred directors' compensation	2,870,595		2,756,526
Retained earnings	100,052,495		96,454,449
stockholders' equity	105,519,917		101,939,337
Less treasury stock, at cost; 194,830 shares at December 31, 2013, and 200,248 shares at September 30, 2013	(6,130,233)		(6,283,851)
Total stockholders' equity	99,389,684		95,655,486
Total liabilities and stockholders' equity	$ 150,225,724		$ 147,838,430

[1] See Fair Value Measurements section for further disclosures regarding fair value of financial instruments.