Demerger of Petroleum Geo-Services ASA Completed


OSLO, Norway, June 29, 2006 (PRIMEZONE) -- Petroleum Geo-Services ASA ("PGS" or the "Company") (OSE:PGS)(NYSE:PGS) announced today that the demerger of PGS has been completed and registered in the Register of Business Enterprises as outlined in the demerger plan which was approved at the extraordinary general meetings of PGS and Petrojarl ASA ("Petrojarl") on April 28, 2006.

All of the shares in Petrojarl, including the demerger shares, will be listed on the Oslo Boers on June 30, 2006. PGS shares will trade exclusive of the right to shares in Petrojarl on the Oslo Boers on June 30, 2006.

PGS' ADRs which are listed on the New York Stock Exchange will be traded exclusive of the right to receive Demerger Shares as of July 7, 2006.

In addition, the extraordinary general meeting of Petrojarl, held on May 29, 2006, elected new directors to the Board of Directors of Petrojarl. Effective as of June 30, 2006, the Petrojarl Board of Directors will comprise of the following members:



   Keith Nicholas Henry, Chairperson,
   Rolf Erik Rolfsen, Vice-chairperson,
   Jorunn Johanne Saetre,
   Joey Shaista Horn, and 
   Jarle Erik Sandvik.

The securities offered will not be and have not been registered under the U.S. Securities Act of 1933 (the "Securities Act"). Securities may not be offered or sold in the United States absent registration or an exemption from registration under the Securities Act.

This press release is not being made and may not be distributed or sent into Australia, Canada or Japan.

This press release is only directed at (i) persons who are outside the United Kingdom, (ii) investment professionals falling within Article 19(5) of the United Kingdom Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (the "Order"), (iii) high net worth entities and (iv) other persons to whom it may lawfully be communicated, falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to in this paragraph as "relevant persons") and must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this communication relates is available only to relevant persons and will be engaged in only with relevant persons.

Petroleum Geo-Services is a focused geophysical company providing abroad range of seismic and reservoir services, including acquisition,processing, interpretation, and field evaluation. PGS operates on a worldwide basis with headquarters at Lysaker, Norway. For more information on Petroleum Geo-Services, visit www.pgs.com.

The information included herein contains certain forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended. 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 as disclosed by the Company in its filings with the U.S. Securities and Exchange Commission including the Company's most recent Annual Report on Form 20-F for the year ended December 31, 2005. As a result of these factors, actual events may differ materially from those indicated in or implied by such forward-looking statements.



            

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