Condensed Balance Sheets (USD $)	Jun. 30, 2014		Sep. 30, 2013
Current Assets:
Cash and cash equivalents	$ 1,511,057		$ 2,867,171
Oil, NGL and natural gas sales receivables	15,070,653		13,720,761
Refundable income taxes	3,160,243
Refundable production taxes	760,947		662,051
Derivative contracts, net		[1]	425,198	[1]
Other	3,660,589		129,998
Total current assets	24,163,489		17,805,179
Properties and equipment at cost, based on successful efforts accounting:
Producing oil and natural gas properties	408,816,025		304,889,145
Non-producing oil and natural gas properties	9,544,840		8,932,905
Other	1,305,473		737,368
Total properties and equipment, at cost, based on successful efforts accounting	419,666,338		314,559,418
Less accumulated depreciation, depletion and amortization	(198,439,791)		(186,641,291)
Net properties and equipment	221,226,547		127,918,127
Investments	1,653,406		1,574,642
Refundable production taxes	159,845		540,482
Total assets	247,203,287		147,838,430
Current Liabilities:
Accounts payable	8,031,138		8,409,634
Derivative contracts, net	1,944,091	[1]		[1]
Deferred income taxes	9,100		127,100
Income taxes payable			751,992
Accrued liabilities and other	1,111,910		1,011,865
Total current liabilities	11,096,239		10,300,591
Long-term debt	85,852,794		8,262,256
Deferred income taxes	37,308,907		31,226,907
Asset retirement obligations	2,855,520		2,393,190
Derivative contracts, net	62,138	[1]
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 8,431,502 issued at June 30, 2014, and September 30, 2013	140,524		140,524
Capital in excess of par value	2,767,615		2,587,838
Deferred directors' compensation	3,026,134		2,756,526
Retained earnings	110,162,113		96,454,449
Stockholders' Equity	116,096,386		101,939,337
Less treasury stock, at cost; 192,874 shares at June 30, 2014, and 200,248 shares at September 30, 2013	(6,068,697)		(6,283,851)
Total stockholders' equity	110,027,689		95,655,486
Total liabilities and stockholders' equity	$ 247,203,287		$ 147,838,430

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