Abdalla El-Badri, OPEC secretary-general, speaks at the Middle East and North Africa Energy conference at Chatham House in London, U.K., on Monday, Jan. 25, 2016. The head of the Organization of Petroleum Exporting Countries said he wants oil producers outside the group to assist in reducing the global oversupply, signaling once again that OPEC won't make output cuts alone. Photographer: Simon Dawson/Bloomberg via Getty Images
