Correction: TGS - Mandatory Notification of Trade

Mark Leonard, Director of TGS, purchased 4,000 shares
of TGS on Tuesday February 16, 2010. The purchase
price was 116.3 NOK per share. After this
transaction Mark Leonard holds 5,500 shares.

This information is subject of the disclosure
requirements acc. to §5-12 vphl (Norwegian Securities
Trading Act)