Ukrainian drones have struck Russia's key Baltic Sea oil export hub at Ust-Luga again, marking the fifth attack in just 10 days. Industry sources say crude oil loading facilities operated by Transneft were targeted, potentially disrupting Russia’s ability to export crude and petroleum products. The repeated drone strikes are part of Ukraine’s intensified campaign against Russia’s energy infrastructure. Ust Luga is one of Moscow’s most important export terminals, handling around 700000 barrels of crude oil per day and millions of tons of petroleum products annually.