A worker walks past pump jacks on an oil field owned by Bashneft company near the village of Nikolo-Berezovka, northwest from Ufa, Bashkortostan, January 28, 2015. New European Union sanctions against Russia could include further capital markets restrictions, making it harder for Russian companies to refinance themselves and possibly affecting Russian sovereign bonds and access to advanced technology for the oil and gas sectors, EU officials said on Wednesday. REUTERS/Sergei Karpukhin (RUSSIA - Tags: ENERGY BUSINESS INDUSTRIAL POLITICS) - RTR4NCMX