Multiclient Seismic Data

12 Months Ended

Dec. 31, 2013

Multiclient Seismic Data

7. Multiclient Seismic Data

The change in the carrying amount of multiclient seismic data is as follows:

	(Stated in millions)
	2013			2012
Balance at beginning of year	$	518		$	425
Capitalized in year		394			351
Charged to expense		(245	)		(258	)
	$	667		$	518