v3.26.3
Inventories (Tables)
9 Months Ended
Sep. 30, 2026
Inventory Disclosure [Abstract]  
Schedule of Inventories
Millions of Dollars
September 30
2026
December 31
2025
Crude oil and products
$1,111 1,000 
Materials and supplies
866 873 
Total inventories
$1,977 1,873 
Inventories valued on the LIFO basis
$637 609