v3.26.1
Inventories (Tables)
6 Months Ended
Jun. 30, 2026
Inventory Disclosure [Abstract]  
Schedule of Inventories
Millions of Dollars
June 30
2026
December 31
2025
Crude oil and products
$1,021 1,000 
Materials and supplies
858 873 
Total inventories
$1,879 1,873 
Inventories valued on the LIFO basis
$594 609