Mandatory Notification of Trade


December 15, 2008, Oslo, Norway:  SVP Corporate Communications of Petroleum Geo-Services ASA Tore D Langballe has on December 15th 2008 sold 1500 shares in Petroleum Geo-Services ASA (PGS) at a price of NOK 26.65.
 
TDL Invest AS, a company controlled by Tore D Langballe has on December 15, 2008 purchased 1500 shares in PGS at a price of 26.80.
 
Following the transactions, Tore D Langballe owns 0 shares in the company and 40 000 stock options. The total number of shares owned by the primary insiders' related party, TDL Invest AS is 1500.
 
This information is subject of the disclosure requirements acc. to §5-12 vphl (Norwegian Securities Trading Act) This information is subject of the disclosure requirements acc. to §5-12 vphl (Norwegian Securities Trading Act)
 
 
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Petroleum Geo-Services is a focused geophysical company providing a broad range of seismic and reservoir services, including acquisition, processing, interpretation, and field evaluation. The company also possesses the world's most extensive multi-client data library. PGS operates on a worldwide basis with headquarters at Lysaker, Norway.
For more information on Petroleum Geo-Services visit www.pgs.com.
 
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