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Multiclient Seismic Data (Tables)
 9 Months Ended
Sep. 30, 2013
Multiclient Seismic Data Table

The change in the carrying amount of multiclient seismic data for the nine months ended September 30, 2013 was as follows:

 

 

(Stated in millions)

 

Balance at December 31, 2012             

$

  518

 

Capitalized in period             

 

  300

 

Charged to expense             

 

(168

)

Balance at September 30, 2013             

$

  650