TGS Announces Multi-Client 3D Survey in Benin


HOUSTON, TX--(Marketwire - December 9, 2010) -  TGS will commence a multi-client 3D survey Offshore Benin in blocks 5 and 6. This project covers roughly 4,000 km2 in the deep water area of Benin. Data acquisition will commence in January 2011 and is expected to be completed in Q2 2011. This project is the second in a series of surveys along the African Transform Margin, following the Gambia project announced on 5 October 2010. Specialized data processing will be done at TGS' imaging center in Houston, TX.

The Benin multi-client 3D survey is supported by industry funding.

Company summary 
TGS-NOPEC Geophysical Company (TGS) provides global geoscience data products and services to the oil and gas industry for the exploration and delineation of hydrocarbon reserves. We design and acquire multi-client data projects worldwide that make up our data library of seismic, gravity/magnetic and well data, enhanced by our seismic imaging technology and regional interpretation expertise. Visit TGS online at www.tgsnopec.com.

Forward-looking statements and contact information
All statements in this press release other than statements of historical fact are forward-looking statements, which are subject to a number of risks, uncertainties and assumptions that are difficult to predict, and are based upon assumptions as to future events that may not prove accurate. These factors include TGS' reliance on a cyclical industry and principal customers, TGS' ability to continue to expand markets for licensing of data, and TGS' ability to acquire and process data products at costs commensurate with profitability. Actual results may differ materially from those expected or projected in the forward-looking statements. TGS undertakes no responsibility or obligation to update or alter forward-looking statements for any reason.

TGS-NOPEC Geophysical Company ASA is listed on the Oslo Stock Exchange (OSLO: TGS).

Contact Information:

For additional information about this news release please contact:

Kristian Johansen
Chief Financial Officer
Office: +47 667 69931
Cell: +47 47 60 33 34
Email: