Condensed Balance Sheets - USD ($)		Jun. 30, 2015	Sep. 30, 2014
Current Assets:
Cash and cash equivalents		$ 925,219	$ 509,755
Oil, NGL and natural gas sales receivables		9,455,779	16,227,469
Refundable production taxes		585,961	625,996
Derivative contracts, net	[1]	5,402,106	1,650,563
Other		196,397	354,828
Total current assets		16,565,462	19,368,611
Properties and equipment at cost, based on successful efforts accounting:
Producing oil and natural gas properties		438,750,515	418,237,512
Non-producing oil and natural gas properties		8,703,427	10,260,717
Other		1,390,339	1,317,725
Total properties and equipment, at cost, based on successful efforts accounting		448,844,281	429,815,954
Less accumulated depreciation, depletion and amortization		(222,231,830)	(204,731,661)
Net properties and equipment		226,612,451	225,084,293
Investments		2,087,629	1,936,421
Derivative contracts, net	[1]		251,279
Total assets		245,265,542	246,640,604
Current Liabilities:
Accounts payable		5,948,158	7,034,773
Deferred income taxes		745,100	600,100
Income taxes payable		1,041,846	523,843
Accrued liabilities and other		1,017,544	1,290,858
Total current liabilities		8,752,648	9,449,574
Long-term debt		65,500,000	78,000,000
Deferred income taxes		40,072,907	37,363,907
Asset retirement obligations		2,786,229	2,638,470
Stockholders' equity:
Class A voting common stock, $.0166 par value; 24,000,000 shares authorized, 16,863,004 issued at June 30, 2015, and September 30, 2014		280,938	280,938
Capital in excess of par value		2,879,000	2,861,343
Deferred directors' compensation		3,014,024	3,110,351
Retained earnings		127,002,060	118,794,188
Stockholders' Equity		133,176,022	125,046,820
Less treasury stock, at cost; 316,628 shares at June 30, 2015, and 372,364 shares at September 30, 2014		(5,022,264)	(5,858,167)
Total stockholders' equity		128,153,758	119,188,653
Total liabilities and stockholders' equity		$ 245,265,542	$ 246,640,604

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