Update on the Cliffhanger North prospect in PL 265

Det norske oljeselskap ASA has, as partner in PL 265 (20 percent), explored a potential on the basement high to the west of the main fault and to the west of the Johan Sverdrup field.

Exploration well 16/2-18 S did not find sandstone reservoir from the Jurassic in the primary objective.

Core sampling has confirmed oil shows in basement rocks in the secondary target.

Data sampling and interpretation is still ongoing. Final results are thus not yet available.

Contact:
Knut Evensen, VP Investor Relations, tel.: +47 950 77 622

About Det norske:
Det norske oljeselskap ASA (DETNOR) is an active exploration company on the Norwegian Continental Shelf. Det norske’s headquarters is in Trondheim. The company also has offices in Oslo and Harstad.

Det norske is listed on the Oslo Stock Exchange with the ticker "DETNOR".

More about Det norske at www.detnor.no/en