Ulvetanna was dry

8/13/2012 10:00 AM EST

Det norske oljeselskap ASA, the operator of PL 356, is in the process of
completing the drilling of well 3/4-2S on the Ulvetanna prospect.

The well was drilled approximately 20 kilometers north of the Trym
Field, located in the southern part of the North Sea.

The objective of the drilling operation was to prove petroleum in
Cretaceous reservoir rock. The estimated main reservoir, the Tor
formation, was encountered in the well, but contained no hydrocarbons.

The well was drilled at an ocean depth of 51 meters by the drilling
facility Maersk Guardian, now due to proceed to Production License 497
(Geite) in the North Sea, operated by Det norske, to drill the wildcat
well 7/11-13.

Det norske holds a 50 percent interest in the well. The other partners
are Repsol, with 40 percent ownership, and Petrolia Norway AS, with 10
percent.
Contacts:
Erik Haugane, CEO, tel.: +47 907 21 655
Knut Evensen, VP Investor Relations, tel.: +47 950 77 622
About Det norske:
Det norske oljeselskap ASA (DETNOR) specialize in extracting petroleum
resources on the Norwegian Continental Shelf (NCS). We are an ambitious
company with significant exploration activity. Recently we have taken
part in some major discoveries, Johan Sverdrup being the single most
important. We now face several development projects, among them Jette as
operator, and Draupne.

Det norske has its headquarter located in Trondheim, and offices in Oslo
and Harstad. As of today we are more than 190 employees. Det norske is
listed on the Oslo Stock Exchange with the ticker "DETNOR".
More about Det norske at www.detnor.n