State oil giant Saudi Aramco has tasked two U.S. industry leaders in oil reserves auditing to review the content of its deposits as it pushes ahead with a share listing next year, industry sources said on Thursday. Aramco, whose fields are estimated to contain 15 percent of the world’s oil, has asked a unit of oilservices firm Baker Hughes – Gaffney, Cline and Associates – to carry out the review, three sources familiar with the move told Reuters. Two separate sources said Aramco had also asked Dallas-based DeGolyer and MacNaughton, one of the world’s oldest names in reserves auditing, to perform some work. Baker Hughes and Aramco declined to comment. DeGolyer did not immediately […]