Russian oil refining has fallen to its lowest level in over two decades, according to Bloomberg reports. This decline stems from escalating Ukrainian drone attacks targeting refineries, tankers, and crucial energy infrastructure. These strikes are significantly disrupting Russia’s oil processing capabilities amidst the ongoing conflict. The attacks represent a growing challenge for Russia's oil industry as the war enters its fifth year. The reduction in refining capacity could impact Russia’s ability to produce fuels for domestic use and export. Analysts suggest the attacks are strategically aimed at weakening Russia’s economic resources supporting the war effort. This downturn presents a significant strain on a key sector of the Russian economy.