v3.21.2
Inventories
9 Months Ended
Sep. 30, 2021
Inventories [Abstract]  
Inventories
Note 2—Inventories
Millions of Dollars
September 30
 
December 31
2021
2020
Crude oil and natural gas
$
485
461
Materials and supplies
558
541
Total
 
Inventories
$
1,043
1,002
Inventories valued on
 
the LIFO basis
 
$
305
282