TGS Q4-2009 New Dial-In Info for Teleconference 11 Feb, 2010

Due to a change of operator for the conference call at 14:00 CET / 13:00 UK /

8:00 AM EST on 11 February, 2010, hosted by CEO Robert Hobbs and CFO Arne

Helland, please find the correct dial in information below:

Norwegian attendees are invited to call 24 15 97 57, and international attendees

are invited to call +44 (0)20 7138 0845. Attendees may want to call 10-15

minutes before 14:00 CET (8:00 AM EST) to ensure registration and access.

Confirmation Code: 1404587

Participants will have to quote the above code when dialing into the conference.

A Q&A session will follow a short introduction, based upon the presentation

issued in the morning.

To pose a question, please press *1.

A replay of the conference call will be available shortly after. To access the

replay of TGS' conference call,

* dial +47 2100 0498 (Norway) or +44 (0)20 7111 1244 (International)

* replay access code 1404587 followed by # (pound-sign)

An MP3 replay will also be available at www.tgsnopec.com

The presentation in the morning at 08:30 CET at Theatersalen in Hotel

Continental, Oslo, webcasted over www.tgsnopec.com ,

will run as previously announced.

Contact:

Arne Helland

Chief Financial Officer

+ 47 66 76 99 31/+47 91 88 78 29

This information is subject of the disclosure requirements acc. to §5-12 vphl

(Norwegian Securities Trading Act)

[HUG#1381914]

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