The Boards of Directors of Det norske oljeselskap ASA (”DETNOR”) and NOIL Energy ASA (”NOIL”) decided in board meetings held 23 July 2008 that the merger of the companies shall come into force. Reference is made to stock exchange notices dated 15 May 2008, 11 April 2008, and 9 October 2007. The merger will come into force when the notification of coming into force has been registered with the Norwegian Register of Business Enterprises. DETNOR has sent notification of coming into force to the Norwegian Register of Business Enterprises for registration, and expects the merger to come into force from and including 25 July 2008. Subsequent to coming into force the merger will be implemented in accordance with the regulations in the Norwegian Public Limited Liability Companies Act on merger of group companies with DETNOR as the Assignee Company and NOIL as the Assigning Company, by transferring NOIL’s assets, rights, and obligations to DETNOR as a whole free of charge. When the merger comes into force, NOIL will be dissolved. Registration in the Register of Business Enterprises will be announced through the Brønnøysund Register Centre’s electronic bulletin for public announcements. No distributions will be carried out in connection with the merger. Neither will any rights or entitlements of economic value be given to shareholders in connection with the merger. The implementation of the merger is the last step of the combination between DETNOR (previously Pertra ASA) and NOIL (previously Det Norske Oljeselskap ASA) as decided in board meetings held 8 October 2007. For additional information pertaining to the merger and the companies, reference is made to previous stock exchange notices. Contacts: DETNOR Erik Haugane (CEO), tel.: + 47 90 72 16 55, e-mail: NOIL Erik Haugane (Chairman of the Board), tel.: + 47 90 72 16 55, e-mail:

About Det norske oljeselskap ASA (“DETNOR”):

Det norske is the second-largest operating company on the Norwegian Continental Shelf with 23 operatorships and interests in a total of 45 licenses. In 2008, the company will participate in the drilling of eight to nine exploration wells, whereof three as operator. Det norske’s scope of activities is limited to the Norwegian Continental Shelf (NCS).

Det norske currently employs a staff of 120, and the strong growth rate continues. The company`s registered office is located in Trondheim. Headquarter functions are divided between Oslo and Trondheim. The company also has offices in Harstad and Stavanger.

Det norske emerged as a result of the combination between Pertra ASA and DNO`s Norwegian operations.

For more information about Det norske oljeselskap ASA, see