French oil giant Total SA recently notified Iran that it had left its project in the South Pars natural-gas field. Iran now expects crude exports to drop as buyers cut purchases by a third ahead of a Nov. 4 deadline set by the Trump administration to bring back bans on Iran oil. Related Video Your browser does not support HTML5 video. 0:00 / 0:00 Skip Ad in 15 The Trump administration said it would soon restore sanctions against Iran. The WSJ’s Gerald F. Seib looks at a possible reason behind the policy change. Photo: Getty Iran’s agreement with Vitol has continued in recent weeks, with the company handling frequent deliveries to the United Arab Emirates, one of these people said. But another person familiar with the company’s thinking said Vitol was likely to end the deal because Washington will prohibit business with NIOC and all Iran oil trades once […]