Platts considers first addition to Brent basket since 2007

By Amanda Cooper LONDON (Reuters) - Oil pricing agency Platts is considering the first major overhaul in nearly a decade of its benchmark dated Brent assessment, which is used for most of the world's crude trade. It may add Norwegian light sweet Troll crude to the basket of oil flows it uses to set the price of dated Brent, it said on Friday. Troll is a light sweet crude and typically 10 to 15 cargoes of 600,000 barrels each are produced each month, compared with an average of about six or seven