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Inventories
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Inventories Inventories
 
Inventories consisted of the following:
(Millions of dollars)March 31,
2021
December 31,
2020
Finished products - First-In, First-Out ("FIFO") basis$300.0 $223.0 
Less: Last-In, First-Out ("LIFO") reserve - finished products(192.2)(101.3)
Finished products - LIFO basis107.8 121.7 
Store merchandise for resale169.0 152.0 
Materials and supplies6.2 5.4 
Total inventories$283.0 $279.1 
 
At March 31, 2021 and December 31, 2020, the replacement cost (market value) of LIFO inventories exceeded the LIFO carrying value by $192.2 million and $101.3 million, respectively. The QuickChek subsidiary values its general merchandise inventory utilizing the LIFO method and values the inventory of gasoline and certain other merchandise items using the FIFO method. The QuickChek LIFO reserve balance for the period was immaterial.