Inventories (Tables)

6 Months Ended

Mar. 31, 2017

Inventory Disclosure [Abstract]

Components of Inventories

Inventories comprise the following:

	March 31, 2017		September 30, 2016		March 31, 2016
Non-utility LPG and natural gas	$	143.1	$	129.8	$	106.7
Gas Utility natural gas	2.4		29.2		3.8
Materials, supplies and other	57.5		51.3		66.0
Total inventories	$	203.0	$	210.3	$	176.5