CONOCOPHILLIPS | 2013 | FY | 3


        
        
Operating lease rental expense for the years ended December 31 was: 
        
 Millions of Dollars 
 2013 2012 2011 
       
Total rentals*$ 317  282  304 
Less: sublease rentals  (12)  (15)  (14) 
 $ 305  267  290 
*Includes $3 million and $29 million of contingent rentals in 2012 and 2011, respectively. Contingent rentals were primarily related to drilling 
equipment and based on usage. 

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