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TGS-NOPEC commences acquisition of multi-client CSEM survey

19 May 2005OSE

Naersnes, Norway (May 19, 2005) - TGS-NOPEC Geophysical Company ASA, in collaboration with Aberdeen-based OHM, announces today the start-up of a Multi-Client Controlled Source ElectroMagnetic (CSEM) survey in the Norwegian Barents Sea.

The survey is designed and based on TGS-NOPEC's multi-client 2D and 3D-seismic database in the area, and is the first one conducted under a "project by project" collaboration agreement between the two companies.

The CSEM method is used under given circumstances to identify highly resistive bodies like hydrocarbon bearing reservoirs in the subsurface, potentially helping to reduce exploration risk for oil and gas companies.

Final processed data and analysis are expected to be available in the summer of 2005. The survey is supported by industry pre-funding.



TGS-NOPEC Geophysical Company (TGS) is a leading global provider of multi-client geoscientific data, associated products and services to the oil and gas industry. TGS specializes in the creation of non-exclusive seismic surveys worldwide. The company also provides advanced depth imaging solutions and software through its TGS Imaging division. A2D Technologies, a wholly-owned subsidiary, is the energy industry's well log data marketplace offering the largest online database, immediate delivery, conversion services, data management services and worldwide well log data sourcing. The TGS family of companies places a strong emphasis on providing high-quality data and the highest level of service to the industry. 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).


John Adamick
Senior VP, Geological Products and Services
Tel: +1 713 860 2100