Khalid Bin Abdulaziz Al-Falih, Saudi Arabia's energy minister and president of OPEC, speaks as Alexander Novak, Russia's energy minister, left, listens during a news conference following the 172nd Organization of Petroleum Exporting Countries (OPEC) meeting in Vienna, Austria, on Thursday, May 25, 2017. OPEC extended oil production cuts for nine more months after last year's landmark agreement failed to eliminate the global oversupply or achieve a sustained price recovery. Photographer: Akos Stiller/Bloomberg Photo: Akos Stiller, Bloomberg / © 2017 Bloomberg Finance LP