Note 5 — Inventories

Inventories comprise the following:



	March 31, 2019		September 30, 2018		March 31, 2018
Non-utility LPG and natural gas	$	159.7	$	231.7	$	163.0
Gas Utility natural gas	3.4		37.3		3.5
Materials, supplies and other	58.9		49.2		61.8
Total inventories	$	222.0	$	318.2	$	228.3

At March 31, 2019, UGI Utilities was party to five principal SCAAs with terms of up to three years. Pursuant to the SCAAs, UGI Utilities has, among other things, released certain storage and transportation contracts for the terms of the SCAAs. UGI Utilities also transferred certain associated storage inventories upon commencement of the SCAAs, will receive a transfer of storage inventories at the end of the SCAAs, and makes payments associated with refilling storage inventories during the terms of the SCAAs. The historical cost of natural gas storage inventories released under the SCAAs, which represents a portion of Gas Utility’s total natural gas storage inventories, and any exchange receivable (representing amounts of natural gas inventories used by the other parties to the agreement but not yet replenished for which UGI Utilities has the rights), are included in the caption “Gas Utility natural gas” in the table above.

As of March 31, 2019, UGI Utilities had SCAAs with Energy Services, the effects of which are eliminated in consolidation, and with a non-affiliate. The carrying value of gas storage inventories released under the SCAAs with the non-affiliate at September 30, 2018, comprising 2.3 bcf of natural gas, was $5.4. There were no gas storage inventories released under SCAAs with the non-affiliate at March 31, 2019 and March 31, 2018.