Mandatory notification of trade

Dan Piette, board member of Petroleum Geo-Services ASA, has on May 13, 2011
bought 1 000 shares (PGS ADRs)in Petroleum Geo-Services ASA at a price of USD
14.20 per share.

Following the transaction, Dan Piette owns 5,000 shares and 0 options in
Petroleum Geo-Services ASA.

This information is subject of the disclosure requirements pursuant to section
5-12 of the Norwegian Securities Trading Act.


[HUG#1516013]