Trondheim, 2010-03-31

Attached is the 2009 Annual Report for Det norske oljeselskap ASA

Annual report for Det norske 2009 is now available.

This is in to two parts, Annual report and Board of Directors´ Annual
Report
and Financial Statements 2009.

Printed copies of the report will be sent when requested. Send an e-mail
to detnor@detnor.no to order an Annual report.

CFO Finn Øistein Nordam tel. +47 98 28 93 82

Det norske oljeselskap ASA has interests in a total of 77 licenses, with
37 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).