TGS Acquires Data Offshore Greenland for the Tenth Consecutive Year

ASKER, NORWAY--(Marketwire - July 7, 2009) - TGS continues their long-term commitment to resolve the geologic challenges and hydrocarbon potential of offshore Greenland with the commencement of the 2009 data acquisition season.

This season marks the 10th consecutive year of new data acquisition by TGS in Greenland. As in past years, the multifaceted acquisition campaign in 2009 will consist of seismic, aeromagnetic, and gravity data.

The first phase of data acquisition has already commenced and will result in more than 41,000 kilometers of aeromagnetic and gravity data being collected in the Ungava, Labrador region. This data will be processed by TGS and available to participating companies late in 2009.

TGS will soon commence the acquisition of 9,600 kilometers of 2D seismic data off the west coast of Greenland in the Baffin Bay. This new survey will infill previous TGS 2D programs to provide a continuous regional grid of data in the area. This seismic program has been designed to assist in the evaluation of the Baffin Bay area prior to a major bid round recently announced by the Greenland authorities close in the spring of 2010.

"TGS continues to strongly believe in the hydrocarbon potential of Greenland," said Robert Hobbs, CEO of TGS. "Since 1999, our customers have supported TGS' focused and multi-year approach to provide the industry with the data necessary to evaluate this attractive frontier environment."

TGS owns the most complete and modern geoscientific data base in offshore Greenland, and upon completion of the 2009 season, TGS' library will include approximately 90,000 kilometers of 2D seismic data and 300,000 kilometers of aeromagnetic and gravity data in this area.

The TGS 2009 Greenland campaign is supported by industry pre-funding.

TGS-NOPEC Geophysical Company (TGS) is a principal resource for global geoscientific data products and services in the E&P industry. TGS specializes in the design, acquisition and processing of multi-client seismic surveys worldwide and delivers advanced high performance seismic imaging and software solutions. The Company also provides the world's largest online well-log database, well data management services, multi-client interpretive products and subsurface consulting services to industry. The suite of integrated exploration data products available from TGS is distinctive and unmatched. The Company philosophy is to create unique high-quality data collected in the right place at the right time.

The information included herein contains certain forward-looking statements that address activities, events or developments that the Company expects, projects, believes or anticipates will or may occur in the future. These statements are based on various assumptions made by the Company, which are beyond its control and are subject to certain additional risks and uncertainties as disclosed by the Company in its Annual Report. As a result of these factors, actual events may differ materially from those indicated in or implied by such forward-looking statements.

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

Visit TGS-NOPEC Geophysical Company online at www.tgsnopec.com

Contact Information: Kjell E. Trommestad VP and General Director EU/RU Tel: +47 66 76 99 61 Email: Karen El-Tawil VP Business Development Tel: +1 713 860 2102 Email: Arne Helland Chief Financial Officer Tel: +47 66 76 99 31/+47 91 88 78 29 Email: