Saudi Arabias energy minister and president of the Organization of the Petroleum Exporting Countries (OPEC), Khalid al-Falih (C), opens the 172nd meeting of the OPEC Conference, at OPEC headquarters in Vienna, Austria, on May 25, 2017. Oil producers from inside and outside OPEC are expected to extend their agreement to cap production in an effort to boost prices. / AFP PHOTO / JOE KLAMAR (Photo credit should read JOE KLAMAR/AFP/Getty Images)
