Multiclient Seismic Data

3 Months Ended

Mar. 31, 2021

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, 2021 was as follows:

(Stated in millions)
Balance at December 31, 2020	$	317
Capitalized in period		7
Charged to expense		(26	)
	$	298