Trondheim, 2010-02-09

Dry well in the Norwegian Sea - Frusalen

Det norske oljeselskap ASA, operator of productionlicense 476, has
finished drilling of exploration well 6507/11-10. The well, which was
dry, is located approximately 5.5km east of the Midgard Field and 30km
south of the Heidrun Field.

The objective of this well was to test the hydrocarbon potential of
Middle- and Lower Jurassic reservoir rocks (Fangst- and Båt Groups). The
well encountered slightly thinner reservoir intervals than prognosed but
with good reservoir quality. The well will be permanently plugged and
abandoned.

Well 6507/11-10 was drilled by the drilling rig Songa Delta which will
now proceed to production license 001B in the North Sea to drill an
appraisal well on the Draupne structure where Det norske oljeselskap ASA
is operator.
 
Holders of production license 476 are Det norske oljeselskap ASA (40%,
operator), Lundin Petroleum (30%), and Norwegian Energy Company ASA
(Noreco) (30%).

Contacts: 
Chief Financial Officer Finn Øistein Nordam; +47 98 28 93 82
Vice President Investor Relations Knut Evensen; +47 950 77 622

About Det norske:
Det norske oljeselskap ASA has interests in a total of 81 licenses, with
36 operatorships.

Det norske is the second-largest operating company on the Norwegian
Continental Shelf both considering number of operatotships and
exploration activity. I 2009 the company operated nine exploration
wells, and the high activity will continue in 2010. Det norske runs its
activities in a safe and responsible manner in close cooperation with
the authorities.

Det norske currently employs a staff of 180. The company`s registered
office is located in Trondheim. The company also has offices in
Oslo,Harstad, and Stavanger. Det norske is listed on the Oslo Stock
Exchange (DETNOR).