Inventories (Tables)

3 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Components of Inventories

Inventories comprise the following:

	December 31, 2017		September 30, 2017		December 31, 2016
Non-utility LPG and natural gas	$	216.4	$	188.4	$	150.9
Gas Utility natural gas	34.6		39.5		25.8
Materials, supplies and other	56.3		50.7		51.5
Total inventories	$	307.3	$	278.6	$	228.2