Inventories

PGL and NSG price natural gas storage injections at the calendar year average of the costs of natural gas supply purchased. Withdrawals from storage are priced on the Last-in, First-out (LIFO) cost method. For interim periods, the difference between current projected replacement cost and the LIFO cost for quantities of natural gas temporarily withdrawn from storage is recorded as a temporary LIFO liquidation debit or credit. The amounts were as follows at June 30, 2015:



		June 30, 2015
(Millions)	Balance Sheet Presentation	PGL		NSG
Temporary LIFO liquidation debit	Other current assets	$	21.0	$	—
Temporary LIFO liquidation credit	Other current liabilities	—		5.2

Due to seasonality requirements, PGL and NSG expect these interim reductions in LIFO layers to be replenished by year end.