Supplementary Information On Oil, Ngl And Natural Gas Reserves (Summary of Standardized Measure of Discounted Future Net Cash Flows) (Details) - USD ($)	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Supplementary Information On Oil, Ngl And Natural Gas Reserves [Abstract]
Future cash inflows	$ 786,295,155	$ 1,405,400,261	$ 630,332,900
Future production costs	(311,933,151)	(423,512,430)	(216,584,982)
Future development and asset retirement costs	(124,857,957)	(146,465,509)	(50,572,218)
Future income tax expense	(123,007,909)	(308,149,182)	(131,397,192)
Future net cash flows	226,496,138	527,273,140	231,778,508
10% annual discount	(144,904,927)	(322,490,636)	(130,103,612)
Standardized measure of discounted future net cash flows	$ 81,591,211	$ 204,782,504	$ 101,674,896	$ 67,414,288