Royal Dutch Shell pulls plug on Arctic exploration

Royal Dutch Shell has abandoned its Arctic search for oil after failing to find enough crude, a move that will appease environmental campaigners and shareholders who said its project was too expensive and risky. The withdrawal came six weeks after the final U.S. clearance and three months after Shell was still defending the project, a rapid change of heart for such a large company that showed it is preparing for a prolonged period of low oil prices while trying to close its $70 billion takeover