MOL said Janaf was charging it prices that were a "multiple" of European benchmarks.

Arguments Janaf has made in statements on the matter are "unconvincing", it added.

Instead of showing solidarity during a time of crisis, Janaf has decided to take advantage of the vulnerability of landlocked Czechia, Hungary, and Slovakia, whose refineries are highly dependent on the Adria pipeline as the only viable alternative to pipeline deliveries of Russian crude, MOL said.