Statements Of Operations (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Revenues:
Oil, NGL and natural gas sales	$ 82,846,528	$ 60,605,878	$ 40,818,434
Lease bonuses and rentals	423,328	938,846	7,152,991
Gains (losses) on derivative contracts	247,414	611,024	73,822
Income from partnerships	893,954	733,372	487,070
Total revenues	84,411,224	62,889,120	48,532,317
Costs and expenses:
Lease operating expenses	13,912,792	11,861,403	9,141,970
Production taxes	2,694,118	1,834,840	1,449,537
Exploration costs	86,017	9,795	979,718
Depreciation, depletion and amortization	21,896,902	21,945,768	19,061,239
Provision for impairment	1,096,076	530,670	826,508
Loss (gain) on asset sales and other	8,378	(942,959)	(88,477)
Interest expense	462,296	157,558	127,970
General and administrative	7,433,183	6,801,996	6,388,856
Total costs and expenses	47,589,762	42,199,071	37,887,321
Income (loss) before provision (benefit) for income taxes	36,821,462	20,690,049	10,644,996
Provision (benefit) for income taxes	11,820,000	6,730,000	3,274,000
Net income (loss)	$ 25,001,462	$ 13,960,049	$ 7,370,996
Basic and diluted earnings per common share:
Net income (loss)	$ 1.49	$ 0.84	$ 0.44