TGS : Share Capital Changes

                         TGS : Share Capital Changes

Asker, Norway (21 August 2013) Following the stock option exercises as
notified by Oslo Stock Exchange on 15 August 2013, 59,000 new shares have now
been registered in the Company Register in Brønnøysund for exercises from the
2009 stock option plans secured by warrants. The share capital of TGS is
thereafter NOK 25,878,681.00 consisting of 103,514,724 shares at a nominal
value of NOK 0.25 per share. TGS holds 1,221,200 of the issued shares as
treasury shares.

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

TGS-NOPEC Geophysical Company ASA is listed on the Oslo Stock Exchange

TGS sponsored American Depositary Shares trade on the U.S. over-the-counter
market under the symbol "TGSGY".

This information is subject of the disclosure requirements pursuant to section
5-12 of the Norwegian Securities Trading Act.


This announcement is distributed by Thomson Reuters on behalf of Thomson
Reuters clients.

The owner of this announcement warrants that:
(i) the releases contained herein are protected by copyright and other
applicable laws; and
(ii) they are solely responsible for the content, accuracy and originality of
information contained therein.

Source: TGS via Thomson Reuters ONE
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