Ukrainian drones strike Omsk oil refinery, triggering major fire and prolonged explosions
Ukrainian drones attacked the Omsk oil refinery in Russia on the evening of November 11, causing a large fire and a series of explosions. Local authorities reported air-raid warnings, communications restrictions and the suspension of airport operations. Ukraine’s military had not confirmed the strike at the time of publication.
Key points
- The attack on the Omsk refinery took place on the evening of November 11, 2026.
- A major fire broke out in the refinery’s industrial zone as explosions continued for more than two hours.
- Omsk Regional Governor Vitaliy Khotsenko said Ukrainian drones attacked the region and Russian air defenses tried to intercept them.
- Omsk airport suspended arrivals and departures, while mobile communications and internet access were restricted.
- The refinery has a projected capacity of more than 21 million–22 million tonnes of crude oil per year and accounts for about 10% of Russian oil refining.
- The plant produces gasoline, diesel fuel, aviation fuel, lubricants and petrochemical products and helps supply the Russian military.
- The refinery is approximately 2,500 kilometres from Ukraine’s border.
Why it matters
The Omsk refinery is Russia’s largest oil-processing enterprise and represents about 10% of the country’s refining capacity. Its output includes gasoline, diesel, aviation fuel, lubricants and petrochemical products, while the plant also helps supply the Russian military. The attack caused significant disruption in Omsk and demonstrated the reach of Ukrainian drone strikes at a facility roughly 2,500 kilometres from Ukraine’s border.
What happened
Ukrainian drones attacked the Omsk oil refinery on the evening of November 11. A major fire erupted on the plant’s industrial grounds, while local residents reported hits and loud explosions. Exilenova+ said the attack and series of explosions lasted for more than two hours, with blasts occurring roughly every minute. Omsk Regional Governor Vitaliy Khotsenko reported an attack by Ukrainian drones and said Russian air defenses tried to intercept them. Air-raid warnings were declared, mobile communications and mobile internet access were restricted, and Omsk airport suspended arrivals and departures. The junior Grand Prix of Russia figure-skating event was moved to November 12–13, and local theater performances were canceled.
How Ukrainian sources describe it
Ukrainian coverage emphasizes the strategic scale of the refinery, its distance from Ukraine, its role in supplying the Russian military and its place within the broader campaign against Russian refining capacity. Reports focus on the prolonged explosions, reported impacts, the fire spreading through the industrial zone and the disruption caused in Omsk. Ukrainian military authorities had not confirmed the operation, although Russian officials, residents and open-source monitoring channels reported the attack.
Where reporting differs
Reports differ over the duration of the attack. Most describe explosions lasting more than two hours, while one report says the bombardment continued for close to four hours. Ukrainian military authorities also had not confirmed the strike at the time of publication, despite reports from Omsk’s governor, residents and monitoring channels.
Background
Ukrainian drones first attacked the Omsk refinery on July 6, 2026, hitting the ELOU-AVT-11 primary oil-processing unit and causing the plant to stop or suspend refining. It was attacked again on October 8, resulting in a fire. The November 11 strike followed a period in which Ukraine reportedly refrained for much of October from targeting Russian oil refineries. Earlier Ukrainian strikes disrupted capacity at a significant number of Russian plants and contributed to fuel shortages and retail restrictions.