v3.26.1
Inventories (Tables)
3 Months Ended
Mar. 31, 2026
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories consisted of the following:

 Millions of Dollars
 March 31
2026
December 31
2025
Crude oil and products$6,141 4,529 
Materials and supplies582 568 
$6,723 5,097