FILE PHOTO: Pump jacks are seen at the Ashalchinskoye oil field owned by Russia’s oil producer Tatneft near Almetyevsk, in the Republic of Tatarstan, Russia, July 27, 2017. Picture taken July 27, 2017. REUTERS/Sergei Karpukhin
FILE PHOTO: Pump jacks are seen at the Ashalchinskoye oil field owned by Russia’s oil producer Tatneft near Almetyevsk, in the Republic of Tatarstan, Russia, July 27, 2017. Picture taken July 27, 2017. REUTERS/Sergei Karpukhin