Asker, Norway (26 October, 2009) TGS-NOPEC Geophysical Company (TGS) announced today their third Wide Azimuth (WAZ) 3D survey in the Constitution series of projects in the Gulf of Mexico.

This newest survey, Justice, adds more than 7,800 square kilometers of WAZ coverage to the TGS portfolio. The project is a northeast expansion of the existing and contiguous Freedom and Liberty projects. Justice will cover portions of the hydrocarbon rich areas of Mississippi Canyon, Viosca Knoll, and De Soto Canyon.

TGS has contracted WesternGeco to perform the seismic acquisition for this survey and the project is planned to commence late in December 2009. Acquisition of the data will incorporate two streamer vessels and two source vessels with a total of 20 streamers and 4 sources deployed and synchronized on the project. TGS will perform all data processing on the Justice survey and the final deliverables will include a wide range of depth imaged products.

Contrary to the Freedom and Liberty projects which were done under a cooperation agreement with WesternGeco, TGS will be the sole owner of the Justice survey.

"The clients' support of our existing Wide Azimuth programs and their willingness to pre-fund the adjacent areas has allowed us to again expand these efforts," commented Stein Ove Isaksen, VP of North and South America for TGS. "We look forward to the challenge of imaging this geologically complex and important producing region of the Gulf."

Upon completion of Justice, TGS will have more than 27,000 square kilometers of WAZ 3D available for licensing covering the most productive oil producing area of the deepwater Gulf of Mexico.

The Justice WAZ 3D project is being completed with customer funding.

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