Condensed Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:
Oil, NGL and natural gas sales	$ 19,534,545	$ 15,827,137	$ 59,115,928	$ 42,686,935
Lease bonuses and rentals	137,476	24,146	353,422	539,479
Gains (losses) on derivative contracts	(1,427,165)	1,714,832	(3,511,095)	796,166
Income from partnerships	130,121	164,330	565,523	470,286
Total revenues	18,374,977	17,730,445	56,523,778	44,492,866
Costs and expenses:
Lease operating expenses	2,961,750	3,105,709	9,930,147	9,040,613
Production taxes	593,941	460,902	1,871,538	1,177,341
Exploration costs	6,956	25,648	70,140	60,827
Depreciation, depletion and amortization	5,314,777	5,192,544	15,562,630	17,090,187
Provision for impairment		7,400	430,143	225,841
Loss (gain) on asset sales, interest and other	44,594	29,789	71,783	(138,921)
General and administrative	1,825,374	1,585,285	5,349,921	5,127,025
Total costs and expenses	10,747,392	10,407,277	33,286,302	32,582,913
Income before provision for income taxes	7,627,585	7,323,168	23,237,476	11,909,953
Provision for income taxes	2,505,000	2,253,000	7,534,000	3,669,000
Net income	$ 5,122,585	$ 5,070,168	$ 15,703,476	$ 8,240,953
Basic and diluted earnings per common share (Note 3)	$ 0.61	$ 0.61	$ 1.88	$ 0.99
Basic and diluted weighted average shares outstanding:
Common shares	8,237,020	8,163,520	8,235,186	8,247,642
Unissued, directors' deferred compensation shares	127,835	116,762	126,051	113,259
Basic and diluted weighted average shares outstanding	8,364,855	8,280,282	8,361,237	8,360,901
Dividends declared per share of common stock and paid in period	$ 0.08	$ 0.07	$ 0.24	$ 0.21