Relations among OPEC members have improved significantly after several acrimonious meetings as the oil-producing group accepts Iran’s revival of crude output, the Iranian oil minister said. “We had a meeting without any tension and because of the new atmosphere in OPEC we could reach some agreements like about the appointment of the new secretary-general,” Bijan Namdar Zanganeh said in an interview in Vienna on Friday, a day after the Organization of Petroleum Exporting Countries met there. The upbeat comments — together with similar […]