Press Releases

TGS and Nordic Maritime Pte Ltd sign settlement agreement

ASKER, NORWAY (1 June 2010) - TGS and Nordic Maritime Pte Ltd (Nordic Maritime) have signed a settlement agreement today related to the material breach dispute between the two companies. TGS has reached a settlement in which it will pay 2.5 million USD to Nordic Maritime.

As disclosed in TGS 2009 Annual Report, TGS made provision for costs associated with this dispute in the 2009 financials. The net effect of the 2.5 MUSD settlement on TGS 2010 financials is considered to be immaterial.

The settlement document will be used to close the arbitration proceedings and release the bank guarantee raised by TGS. The agreement provides for all claims either party have against the other party, to be lifted.

About TGS

TGS provides multi-client geoscience data to oil and gas Exploration and Production companies worldwide. In addition to extensive global geophysical and geological data libraries that include multi-client seismic data, magnetic and gravity data, digital well logs, production data and directional surveys, TGS also offers advanced processing and imaging services, interpretation products, and data integration solutions.

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 product 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.

Sven Børre Larsen

Sven Børre Larsen

Chief Financial Officer

Tel: +47 90 94 36 73

Ellen Munkvold

Ellen Munkvold

IR Coordinator

Tel: +47 97 76 26 25