Divests interest in PL 659 in the Barents Sea

Det norske oljeselskap ASA has entered into an agreement with Atlantic Petroleum Norge AS concerning the sale of a 10 percent interest in production license 659 in the Barents Sea, where drilling on the Langlitinden prospect is scheduled to commence in January 2014.

Det norske is the operator and will hold 20 percent in the license following the transaction.

As compensation, Atlantic Petroleum will carry part of Det norske’s drilling costs related to the exploration well. Langlitinden is a gas and oil prospect. The well is located approximately 165 kilometres northwest of Hammerfest.

The agreement is subject to approval by the authorities.

The licensees in production licence 659, previous ownership interests in parantheses:
Det norske oljeselskap, operator            20 percent (30 percent)
Petoro                                                     30 percent
Lundin Norway                                        20 percent
Atlantic Petroleum Norge                        10 percent (0 percent)
Tullow Oil Norge                                      10 percent
Rocksource Exploration Norway              5 percent
Ithaca Petroleum Norge                           5 percent

Contact:
VP Investor Relations, Knut Evensen, 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