The southern branch of the Druzhba pipeline supplies Hungary, Slovakia and the Czech Republic.
The EU imposed an embargo on Russian oil purchases via maritime routes from December.
Hungary, Slovakia and Czech Repubic were, however, allowed to continue Russian oil imports as critical feedstock.
Oil supplies via a section of the southern Druzhba pipeline were temporarily suspended in November following shelling on a power station which provides electricity for a pump station.
The Druzhba pipeline crosses Belarus and Ukraine and remains an income source for both countries which receive transit fees.
Persons:
Unipetrol, Poland's PKN, uninterruptedly, PKN Orlen, Emelia Sithole
Organizations:
European Union, EU, MOL, Reuters, Minsk, Thomson
Locations:
MOSCOW, Ukraine, Russian, Europe, Russia, Moscow, Hungary, Slovakia, Czech Republic, Druzhba, Czech, Belarus, Kiev, Adria, Ukrainian