Supplementary Information On Oil, NGL And Natural Gas Reserves (Summary of Costs Incurred in Oil and Natural Gas Producing Activities) (Details) - USD ($)	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Extractive Industries [Abstract]
Property acquisition costs	$ 20,190		$ 146,261
Exploration costs		$ 21,049	898,818
Development costs	25,382,377	5,075,710	24,931,571
Total cost incurred	$ 25,402,567	$ 5,096,759	$ 25,976,650