It seems that the U.S. exodus of the Norwegian Continental Shelf (NCS) is now in full swing. Following hot on the heels of the decision by Chevron last year to exit the region, the news is coming out of Houston that the largest U.S. energy company, ExxonMobil, is planning to sell its Norwegian assets. Although they are no longer an operator in the region, the U.S. giant holds stakes in around 20 operating fields and projects in the area.