Russia’s Ryazan oil refinery halved its production and the Novokuibyshevsk refinery halted it completely on Aug. 2 after Ukrainian drone attacks, Reuters reported, citing undisclosed sources.

Russia’s Ryazan oil refinery halved its production and the Novokuibyshevsk refinery halted it completely on Aug. 2 after Ukrainian drone attacks, Reuters reported, citing undisclosed sources.