Russian President Vladimir Putin walks to attend a ceremony of naming of a new Russian Arctic LNG tanker after Christophe de Margerie, the late CEO of French oil corporation Total S.A., who has died in an aircraft crash in Moscow on October 20, 2014, on the side line of the St. Petersburg International Economic Forum (SPIEF), Russia, June 3, 2017. REUTERS/Olga Maltseva/Pool