Ukraine has stopped the transit of oil from Russian company Lukoil to Slovakia. This will impact the operations of one of Slovakia’s refineries, according to Maria Pavlusik, spokesperson for Slovakia’s Ministry of Economy. “According to information that we’ve received from Transpetrol, supplies of Russian oil to Slovakia haven’t been halted. Information from Slovnaft indicates that the problem only concerns deliveries from a particular supplier, Russian company Lukoil, which has been included on the sanctions list by Ukraine,” she said. However, a long-term deficit in oil supply could negative…