Notice of Extraordinary General Meeting

The shareholders of Det norske oljeselskap ASA are invited to attend the
Extraordinary General Meeting to be held on Wednesday 24th of June 2009 at
17:00 hours at Britannia Hotel, Dronningens gate 5, 7011 Trondheim,
Norway.

Please find Notice of Extraordinary general Meeting 24th of June 2009
attached; the Notice is also available on the company’s website:
www.detnor.no.

A printed version of the Notice, will be sent by post to shareholders. The proposal from the Nomination Committee on agenda item 4 and 5; Election of Board of Directors and Nomination Committee, will be published when available.

For additional information, please contact:

Head of IR, Knut Evensen, tel. +47 95 07 76 22
Chief Financial Officer, Finn Øistein Nordam, tel, +47 98 28 93 82