The crown prince has indicated he wants the IPO to value Saudi Arabian Oil, or Aramco, at $2 trillion. But that target has already met some resistance from company executives working on the planned offering, who have suggested $1.5 trillion is more realistic. That valuation is gaining support among the underwriters who are tasked with drumming up investor interest for the offering, a group that includes JPMorgan Chase JPM 1.40% & Co. , Goldman Sachs Group Inc. and Morgan Stanley MS 1.51% among others, according to people familiar with the matter. Aramco declined to comment. Aramco is in the final stages of preparing to list shares on the domestic Tadawul exchange, as the government pursues a key part of the crown prince’s economic-reform program. MBS, as the crown prince is known, ultimately plans to list at least 5% of Aramco, through a domestic and a later planned international listing, […]