Local residents reported that an oil refining unit at Rosneft's Syzran plant was struck in the Ukrainian attack.

Ukraine’s Defense Forces struck the Lukoil-Nizhegorodnefteorgsintez oil refinery on Russian territory on May 18 and the Yaroslavl-3 pumping station on May 19. — Ukrinform.

Ukraine's military reportedly struck the Nevinnomyssk Azot plant in Russia's southern Stavropol Krai overnight on May 20, Russian Telegram media channels reported.