Multiclient Seismic Data

9 Months Ended

Sep. 30, 2017

Multiclient Seismic Data [Abstract]

Multiclient Seismic Data

7.   Multiclient Seismic Data

The change in the carrying amount of multiclient seismic data for the nine months ended September 30, 2017 was as follows:

(Stated in millions)
Balance at December 31, 2016	$	1,073
Capitalized in period		223
Charged to expense		(304	)
Balance at September 30, 2017	$	992