Update on Langlitinden exploration well

Det norske oljeselskap ASA has, as operator for PL 659, from core samples identified hydrocarbon shows in exploration well 7222/11-2 on the Langlitinden prospect in the Barents Sea. Drilling operations are ongoing and final results are thus not yet available. Det norske oljeslskap ASA is operator for the license with a 30 percent interest (20 percent)*. Partners include Petoro 30 percent, Lundin Norway 20 percent, Tullow Oil 10 percent (15 percent)*, Atlantic Petroleum 0 percent (10 percent)*, Rocksource Exploration Norway 5 percent and Ithaca Petroleum Norge 5 percent (0 percent)*. * Det norske has transferred a ten percent working interest to Atlantic Petroleum.  Ithaca has transferred a five percent working interest to Tullow Oil Norge AS. The transactions are subject to government approval. New ownership interests following government approval are listed in brackets.