Det norske down in Clapton

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Det norske oljeselskap ASA has sold 20 percent in PL 440S (Clapton) to Faroe Petroleum. As compensation, Faroe will cover Det norske's exploration expences related to the next exploration well in the license. Det norske has offered to resign as operator in the license.

Contacts:

Torgeir Anda, VP Communication, tel.: +47 991 12 203

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

About Det norske: Det norske oljeselskap ASA has interests in a total of 72 licenses, with 35 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).