Exhibit 8

List of CGGVeritas subsidiaries (March 31, 2007)

(Certain dormant or insignificant subsidiaries of the Group have not been included in the list below)

French Companies	Head Office	% of Interest
CGG Services (ex CGG Marine SAS)	Massy, France		100.0
Sercel Holding SA	Carquefou, France		100.0
Sercel SA	Carquefou, France		100.0
Foreign Companies	Head Office	% of Interest
CGGVeritas Services Inc	Delaware, United States		100.0
Veritas Geophysical Corporation	Delaware, United States		100.0
Veritas DGC Land Inc	Delaware, United States		100.0
Veritas Energy Services Inc	Alberta, Canada		100.0
Veritas Energy Services Partnership	Alberta, Canada		100.0
Veritas DGC Limited	United Kingdom		100.0
Veritas DGC Australia Pty Ltd	Australia		100.0
Veritas Geophysical (Asia Pacific) Pte Ltd	Singapore		100.0
CGG Americas, Inc	Houston, Texas, United States		100.0
CGG do Brazil Participaçoes Ltda	Rio de Janeiro, Brazil		100.0
CGG Marine Resources Norge	Oslo, Norway		100.0
CGG AP	Kuala Lumpur, Malaysia		33.2
Compania Mexicana de Geofisica	Mexico City, Mexico		100.0
Exploration Resources Norge ASA	Bergen, Norway		100.0
Exploration Investment Resources II A/S	Bergen, Norway		100.0
Sercel England Ltd	Somercous, United Kingdom		100.0
Sercel Inc	Tulsa, Oklahoma, United States		100.0
Sercel Singapore Pte Ltd	Singapore		100.0
Sercel Australia	Sydney, Australia		100.0
Hebei Junfeng	Hebei Province, P.R.C.		51.00

Each of our subsidiaries listed above is organised in the country or U.S. state in which its head office is located, and each such subsidiary does business under its registered name.