Vice President of Lukoil Vitaliy Robertus may have been killed during explosions at the oil refinery in Russia, according to RBC-Ukraine’s sources in Ukrainian special services. Russian media reported the death of Robertus without specifying the cause. According to sources in Ukrainian special services speaking to RBC-Ukraine, the top manager may have been killed as a result of an attack on the Lukoil-Nizhny Novgorodnefteorgsintez oil refinery in the city of Kstovo, Nizhny Novgorod region. However, the information is currently being verified. It’s worth noting that this is the third top manage…