Supplementary Information On Oil, Ngl And Natural Gas Reserves (Summary of Changes in Standardized Measure of Discounted Future Net Cash Flows) (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Supplementary Information On Oil, Ngl And Natural Gas Reserves [Abstract]
Beginning Balance	$ 67,414,288	$ 78,382,434	$ 72,500,409
Sales of oil and natural gas, net of production costs	(46,909,635)	(30,226,927)	(33,570,621)
Net change in sales prices and production costs	47,270,404	(45,178,377)	(2,697,833)
Net change in future development costs	(7,363,224)	4,483,543	4,126,812
Extensions and discoveries	54,101,830	34,216,533	11,938,029
Revisions of quantity estimates	(3,150,420)	(27,419,576)	7,046,873
Acquisitions (divestitures) of reserves-in-place	2,198,612	20,160,327	4,480,858
Accretion of discount	11,473,819	13,644,203	12,523,091
Net change in income taxes	(27,464,341)	10,735,694	(5,329,092)
Change in timing and other, net	4,103,563	8,616,434	7,363,908
Net change	34,260,608	(10,968,146)	5,882,025
Ending Balance	$ 101,674,896	$ 67,414,288	$ 78,382,434