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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Summary Of Inventories
(Millions of dollars)March 31,
2023
December 31,
2022
Crude oil $3,819 $3,047 
Refined products5,454 4,748 
Materials and supplies995 1,032 
Total$10,268 $8,827