Condensed Balance Sheets (USD $)	Dec. 31, 2014		Sep. 30, 2014
Current Assets:
Cash and cash equivalents	$ 519,605		$ 509,755
Oil, NGL and natural gas sales receivables	13,555,350		16,227,469
Refundable production taxes	612,791		625,996
Derivative contracts, net	12,333,036	[1]	1,650,563	[1]
Other	255,743		354,828
Total current assets	27,276,525		19,368,611
Properties and equipment at cost, based on successful efforts accounting:
Producing oil and natural gas properties	430,310,159		418,237,512
Non-producing oil and natural gas properties	9,394,878		10,260,717
Other	1,372,943		1,317,725
Total properties and equipment, at cost, based on successful efforts accounting	441,077,980		429,815,954
Less accumulated depreciation, depletion and amortization	(210,823,119)		(204,731,661)
Net properties and equipment	230,254,861		225,084,293
Investments	2,053,420		1,936,421
Derivative contracts, net			251,279	[1]
Total assets	259,584,806		246,640,604
Current Liabilities:
Accounts payable	6,167,740		7,034,773
Deferred income taxes	765,100		600,100
Income taxes payable	3,415,443		523,843
Accrued liabilities and other	1,264,994		1,290,858
Total current liabilities	11,613,277		9,449,574
Long-term debt	78,715,107		78,000,000
Deferred income taxes	38,382,907		37,363,907
Asset retirement obligations	2,696,836		2,638,470
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 16,863,004 issued at December 31, 2014, and September 30, 2014	280,938		280,938
Capital in excess of par value	2,590,151		2,861,343
Deferred directors' compensation	3,211,940		3,110,351
Retained earnings	127,694,926		118,794,188
Stockholders' Equity	133,777,955		125,046,820
Less treasury stock, at cost; 355,558 shares at December 31, 2014, and 372,364 shares at September 30, 2014	(5,601,276)		(5,858,167)
Total stockholders' equity	128,176,679		119,188,653
Total liabilities and stockholders' equity	$ 259,584,806		$ 246,640,604

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