Multiclient Seismic Data

6 Months Ended

Jun. 30, 2014

Multiclient Seismic Data

7. Multiclient Seismic Data

The change in the carrying amount of multiclient seismic data for the six months ended June 30, 2014 was as follows:

(Stated in millions)
Balance at December 31, 2013	$	667
Capitalized in period		154
Charged to expense		(94	)
Balance at June 30, 2014	$	727