Tensions between Iran and Saudi Arabia triggered doubts about the success of the OPEC+ oil production cut deal two years ago when it was first being hatched. Now, with the deal in its second year, these doubts have been rekindled by the escalation between the two regional rivals. There is no end in sight for the proxy war that Saudi Arabia and Iran are fighting in Yemen, and it could spell the end of the deal. There are already doubters that the deal will survive beyond the June 2018 meeting of the partners. Earlier this year, commodity analysts from leading investment banks warned that for some of the partners in the deal, oil prices are getting too high for comfort. Russia was a notable example in this respect: with its economy mainly export-oriented, it could use lower oil prices to keep the ruble low and maintain demand for its […]