Multiclient Seismic Data

3 Months Ended

Mar. 31, 2015

Multiclient Seismic Data [Abstract]

Multiclient Seismic Data

6.   Multiclient Seismic Data

The change in the carrying amount of multiclient seismic data for the three months ended March 31, 2015 was as follows:

(Stated in millions)
Balance at December 31, 2014	$	793
Capitalized in period		101
Charged to expense		(44	)
Balance at March 31, 2015	$	850