Inventories (Tables)

9 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Components of Inventories

Inventories comprise the following: 

	June 30, 2019		September 30, 2018		June 30, 2018
Non-utility LPG and natural gas	$	141.6	$	231.7	$	177.0
Gas Utility natural gas	15.5		37.3		18.6
Materials, supplies and other	58.0		49.2		57.6
Total inventories	$	215.1	$	318.2	$	253.2