Mandatory notification of trade


September 26, 2008: Oslo, Norway, Petroleum Geo-Services ASA ('PGS' or the 'Company') advises that the Company has re-purchased USD 29,500,000 of nominal value of its Convertible Bonds with ISIN NO 0010402761 (the CBs) at a price of 65.50 per cent per bond.
 
As of today PGS owns $29,500,000 of CBs representing 7.4% of the total outstanding issue.
 
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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The information included herein contains certain forward-looking statements that address activities, events or developments that the Company expects, projects, believes or anticipates will or may occur in the future. These statements are based on various assumptions made by the Company, which are beyond its control and are subject to certain additional risks and uncertainties. The Company is subject to a large number of risk factors including but not limited to the demand for seismic services, the demand for data from our multi-client data library, the attractiveness of our technology, unpredictable changes in governmental regulations affecting our markets and extreme weather conditions. For a further description of other relevant risk factors we refer to our Annual Report for 2007. As a result of these and other risk factors, actual events and our actual results may differ materially from those indicated in or implied by such forward-looking statements.

Anhänge

Convertible Bond