Inventories (Tables)

6 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Components of Inventories

Inventories comprise the following:

	March 31, 2018		September 30, 2017		March 31, 2017
Non-utility LPG and natural gas	$	163.0	$	188.4	$	143.1
Gas Utility natural gas	3.5		39.5		2.4
Materials, supplies and other	61.8		50.7		57.5
Total inventories	$	228.3	$	278.6	$	203.0