Ukraine is claiming responsibility for a drone attack on a distant Russian oil facility. The strike, reported Wednesday, targeted a site over 1,500 kilometers from Ukraine. President Volodymyr Zelenskyy says these long-range strikes aim to disrupt Russia’s energy infrastructure. Russian media reported the attack, but officials have been vague about details. Ukraine's Security Service says the facility is a key hub in Russia’s oil transport system. The attack follows a strike on Russia's Tuapse oil refinery. Ukraine is increasing its drone production, aiming to exploit Russia's vulnerabilities and reduce its oil revenue. Kyiv is also offering its know-how to partners.