v2.4.0.6
Inventories (Tables)
9 Months Ended
Sep. 30, 2012
Inventories [Abstract]  
Inventories
Note 4—Inventories    
     
Inventories consisted of the following:    
     
 Millions of Dollars
 September 30  December 31
  2012 2011
     
Crude oil and petroleum products$ 436  3,633
Materials, supplies and other  740  998
 $ 1,176  4,631