Inventories (Tables)

6 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Components of Inventories

Inventories comprise the following: 

	March 31, 2020		September 30, 2019		March 31, 2019
Non-utility LPG and natural gas	$	110.1	$	150.2	$	159.7
Gas Utility natural gas	3.3		26.6		3.4
Materials, supplies and other	66.3		53.1		58.9
Total inventories	$	179.7	$	229.9	$	222.0