Uzbekistan to Make Well Log Data Available Online: TGS-NOPEC Affiliate A2D Technologies to Execute Project

Uzbekgeofizika of Uzbekistan has entered into a new agreement with
TGS-NOPEC Geophysical Company ASA to convert the Country's domestic
hardcopy well log data assets into digital form. TGS-NOPEC's well log
subsidiary, A2D Technologies, will undertake the project. The
objective of the project is to create a high quality commercial well
log dataset that will ultimately be accessible worldwide via the
Internet, which in turn will encourage investments in the development
of exploration activities in Uzbekistan.

Under the five-year agreement, a joint A2D and Uzbekgeofizika
project team, based in Tashkent, will index and scan the country's
hardcopy log assets. Once the indexing and scanning portion of the
projects are complete, the logs will be available via LOG-LINE
Plus!(R), A2D's well data search and access portal. A2D's online
database also contains well log data from Russia, West Africa,
Madagascar, Offshore Northwest Europe, the United States and Canada.
For more information, visit www.a2d.com.

A2D Technologies, a TGS-NOPEC Company, 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. TGS is a leading global provider of
multi-client geo-scientific data, associated products and services to
the oil and gas industry. 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).