Inventories (Tables)

6 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories comprise the following:

	March 31, 2016		September 30, 2015		March 31, 2015
Gas Utility natural gas	$	3,786	$	37,510	$	6,260
Materials, supplies and other	12,899		14,206		13,273
Total inventories	$	16,685	$	51,716	$	19,533