CONOCOPHILLIPS | 2013 | FY | 3


During 2013 and 2012, our overall asset retirement obligation changed as follows:
     
 Millions of Dollars
 2013 2012
     
Balance at January 1$ 9,164  8,920
Accretion of discount  434  412
New obligations  410  315
Changes in estimates of existing obligations  707  543
Spending on existing obligations  (298)  (319)
Property dispositions  (163)  (607)
Foreign currency translation  (178)  281
Separation of Downstream business  -  (381)
Balance at December 31$ 10,076  9,164

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