Inventories (Tables)

9 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories comprise the following:

	June 30, 2016		September 30, 2015		June 30, 2015
Gas Utility natural gas	$	13,561	$	37,510	$	19,205
Materials, supplies and other	13,448		14,206		14,171
Total inventories	$	27,009	$	51,716	$	33,376