Kazakhstan’s oil exports could be cut by as much as 30% for up to two months following the February 17 Ukrainian drone strike on a key pipeline pumping station, Russia’s state pipeline operator Transneft said on February 18.

On February 17, seven unmanned aerial vehicles attacked the Kropotkinskaya pumping station in Russia, a crucial node in the 940-mile Caspian Pipeline Consortium that sends oil from Kazakhstan to the Black Sea port of Novorossiysk.

Kazakhstan is seeking discussions with Ukraine after an attack by its drones on Russian territory affected flows through its important crude export conduit.