◢ Oil cartel OPEC has "not much credit" left as some members are turning it into "a tool for the US", a senior Iranian official said in comments published Saturday. "Saudi Arabia and the UAE are turning OPEC into a tool for the US and consequently the organization has not much credit left," Iran's OPEC governor Hossein Kazempour Ardebili told the Shana newswire, affiliated to Iran's Oil Ministry.