--- title: "Perm Refinery Fully Shut Down After Drone Attack: Key Primary Processing Units Damaged" description: "The Perm Refinery — the seventh-largest by processing volume in Russia — has been fully shut down after a Ukrainian drone attack: units CDU-4 and CDU-5 were damaged, and repairs will take up to two weeks." date: 2026-08-24T18:16:03.000Z lang: en url: https://xab.info/en/posts/perm-refinery-shut-down-after-drone-attack tags: [perm-refinery, drone-attack, oil-refining, russia-ukraine, fuel-supply] publisher: "XAB.info" --- # Perm Refinery Fully Shut Down After Drone Attack: Key Primary Processing Units Damaged ![Perm refinery after drone attack: halted oil processing complex with red-and-white chimneys and storage tank farm](https://xab.info/media/2026/08/24/perm-npz-ostanovlen-posle-ataki-drona/perm-npz-ostanovlen-posle-ataki-drona-1.webp) ## 🎯 Key Points - The Perm Refinery (7th by processing volume in Russia) fully halted operations after a drone attack on August 21 - Unit CDU-4 damaged (~40% of capacity, 14,000 t/day); CDU-5 (34%) had been idle since July 29 - According to preliminary estimates, repairs may take one to two weeks - The strike fits into a series of attacks on refineries: Yeisk and Novokuybyshevsk were hit on August 22 The Perm Oil Refinery — the seventh-largest in Russia by crude processing volume — has fully halted operations following an attack by a Ukrainian drone. This was reported by two sources in the industry, as cited by Reuters. According to preliminary data, the main primary processing unit CDU-4, which accounts for nearly 40% of the plant's capacity, was taken out of service as early as August 21, while the second key unit, CDU-5, had been idle since July 29. ### Full Shutdown of the Country's Seventh-Largest Refinery According to the sources, the strike on CDU-4, capable of processing 14,000 metric tons of crude oil per day, effectively paralyzed the plant. Together, the two shut-down primary processing units — CDU-4 and CDU-5 — account for roughly 74% of the plant's capacity, making continued normal operation impossible. As a result, following the August 21 attack, during which a large fire broke out on the plant's territory, the Perm Refinery ceased crude oil processing in full. ### A Cascade of Strikes: From July 29 to August 21 The plant's shutdown was the result not of a single strike but of an entire series of attacks. The CDU-5 unit, which accounts for 34% of capacity, had been idle since July 29, when the facility was hit by a drone for the first time. A repeat attack on August 21, which damaged CDU-4 and triggered a fire, completed the shutdown. The plant is located 1,460 km northeast of Moscow, underscoring the distance from which its facilities were struck. ### Scale of Losses and Repair Timelines In 2024, the Perm Refinery processed about 12.6 million tons of crude oil, equivalent to roughly 252,000 barrels per day. According to preliminary estimates, repair work following the damage to CDU-4 may take one to two weeks. The exact timeline for restoration depends on the extent of the damage inflicted on the technical equipment during the fire. ### Part of a Series of Strikes on Oil Refining The shutdown of the Perm Refinery fits into a series of strikes on Russia's oil refining facilities. Thus, on August 22, Ukrainian defense forces hit fuel storage tanks at the Yeisk Oil Loading Complex in the Krasnodar Krai. On the night of August 22, drones also attacked Samara Oblast, where a strike on the Novokuybyshevsk Refinery with a resulting fire was recorded. In this way, within just a few days, several major refining and fuel facilities in different regions were hit. ### Contradictory Data There are inconsistencies in open sources that should be taken into account. First, the two shut-down primary processing units (CDU-4 and CDU-5) together account for about 74% of the plant's capacity, yet the sources and a number of outlets describe the facility as fully shut down; formally, this may mean that the remaining capacity does not support a continuous processing cycle, but the exact share of disabled equipment is not officially disclosed. Second, all information about the shutdown and repair timelines relies on anonymous industry sources and has not been confirmed by official statements from the plant itself or Russian authorities, which are absent from the provided materials. Finally, the date of the fire (August 21) coincides with the shutdown of CDU-4, whereas CDU-5 was taken out of service earlier — on July 29 — which is important for the correct chronology of the damage. ## 🔍 Fact-Check Verification - [Perm Refinery Halts Crude Processing After Drone Attack, - Reuters](https://www.rbc.ua/ukr/news/permskiy-npz-zupiniv-pererobku-nafti-pislya-1787594327.html) - Подтверждает остановку завода и ссылается на Reuters/два источника отрасли; официальных подтверждений РФ нет. - [Perm Refinery in Russia Fully Halts Operations After Ukrainian Drone Attack](https://24tv.ua/ru/ataka-permskij-npz-paralizovala-ego-rabotu-povrezhdena-kljuchevaja_n3129121) - Подтверждает полную остановку и повреждение ключевых блоков; опирается на отраслевые источники. - [Russia's Largest Refinery: Ukraine Destroys the Omsk Refinery for the First Time, 2,500 km from the Border](https://glavred.info/war/krupneyshiy-npz-rossii-ukraina-vpervye-raznesla-omskiy-npz-v-2500-km-ot-granicy-10778432.html) - Контекстный источник о серии ударов по НПЗ на большой дальности; не используется как подтверждение факта по Перми. - [LUKOIL Deepens Its Refining Operations](https://1prime.ru/20151204/822265862.html) - Подтверждено по источнику 1prime.ru ## ❓ FAQ ### Q: Why was the Perm Refinery shut down? **A:** Due to a Ukrainian drone attack on August 21 that damaged unit CDU-4 and triggered a large fire; unit CDU-5 had been idle since July 29. ### Q: What is the plant's capacity share and its volumes? **A:** CDU-4 provides nearly 40% of capacity (14,000 t/day), CDU-5 — 34%. In 2024 the plant processed about 12.6 million tons of crude oil (~252,000 barrels per day). ### Q: How long will the repairs take? **A:** According to preliminary estimates, one to two weeks; the exact timeline depends on the extent of damage to the equipment.