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Inventories
6 Months Ended
Jun. 30, 2024
Inventory Disclosure [Abstract]  
Inventories
Note 2—Inventories
Millions of Dollars
June 30
2024
December 31
2023
Crude oil and natural gas
$723 676 
Materials and supplies
724 722 
Total inventories
$1,447 1,398 
Inventories valued on the LIFO basis
$409 401