v2.4.0.6
Inventories (Tables)
3 Months Ended
Mar. 31, 2013
Inventories [Abstract]  
Inventories
Note 5—Inventories    
     
Inventories consisted of the following:    
     
 Millions of Dollars
 March 31  December 31
  2013 2012
     
Crude oil and petroleum products$ 396  244
Materials, supplies and other  737  721
 $ 1,133  965