HOUSTON, TX--(Marketwire - Dec 14, 2012) - TGS commences a 3D multi-client survey covering 7,000 km² in the Central Gulf of Mexico.

The survey, Amerigo 3D, is located in the eastern side of the Central Gulf of Mexico through the Lloyd Ridge, Desoto Canyon and Atwater Valley areas.

"We are pleased to extend our 3D coverage in the Central Gulf of Mexico. This survey enables TGS to leverage our existing adjacent 3D data while utilizing 12,000 meter offsets to allow for a deeper image in this attractive play. Industry support of the new survey indicates increasing interest to explore in this region," commented Rod Starr, Senior VP Western Hemisphere for TGS.

The seismic data is being acquired by a Fugro C-class vessel and will be complete Q2 2013. Data processing will integrate the new Amerigo data with TGS' modern, adjacent 3D data and apply TGS' newest broadband processing technology, Clari-Fi™. Preliminary data will be available to clients Q3 2013.

The survey is supported by industry funding. 

Company summary 

TGS-NOPEC Geophysical Company (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, permanent reservoir monitoring and data integration solutions.
For more information visit TGS online at [ www.tgs.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).