“3,000 km [1,864 miles]! This is the first strike on this facility.” That is how Ukraine’s Special Operations Forces (SSO) announced on Telegram that they had hit the Omsk Oil Refinery, which they called “the largest and ‘inaccessible’ Russian refinery.”
The SSO called it the deepest long-range strike on enemy territory during the entire full-scale invasion. Ukraine’s General Staff, which confirmed the attack, put the distance from the border at nearly 2,500 kilometers (around 1,550 miles). A direct hit was recorded, and a fire started. The full extent of the damage was still being assessed.
The unit that was hit
Preliminary information, according to the General Staff, shows the strike landed on the ELOU-AVT-11 primary oil refining unit, designed to process 8.4 million tons of oil per year. The SSO described it as the plant’s most important installation. “Without primary refining, all other facilities simply have no raw materials,” the SSO said.
The monitoring group Dnipro Osint reported that modernized FP-1 drones, a new generation of Ukrainian long-range aircraft, hit the unit’s processing columns. The General Staff said Omsk was the last of Russia’s 11 largest gasoline producers to be struck by Ukrainian forces.
What Russian officials said
Omsk Region Governor Vitaly Khotsenko first wrote on Telegram that Russian Defense Ministry air defense forces had shot down enemy drones over the region and that the consequences were being clarified. Photos and videos on social media, however, showed a large fire on the refinery grounds. The Ukrainian monitoring channel Exilenova+ claimed that a Su-57 was hunting drones over Omsk and that only one was shot down, with all the others hitting the target.
Khotsenko later acknowledged that several drones had reached Omsk’s northern industrial zone. He did not explicitly mention the refinery. Analysis published earlier by the Russian outlet Astra also confirmed the refinery had been targeted.
How big is it?
The refinery belongs to Gazprom Neft, employs more than 3,300 people and processes over 21 million tons of oil a year. After a modernization program completed in 2025, it reportedly reached nearly 100% processing depth. In 2024 it produced more than 50 petroleum products, all meeting the Euro 5 fuel standard. Besides gasoline, it makes benzene, paraxylene, orthoxylene, lubricants, motor and industrial oils and carbon black feedstock.
According to the SSO, it supplies a significant share of Russia’s domestic gasoline and diesel and is one of the country’s main producers of aviation fuel. Exilenova+ said it accounts for about 10% of Russia’s total refining capacity and supplies more than half of motor fuel demand in the Siberian Federal District.
The claim that Omsk is Russia’s largest is a Ukrainian one. Astra wrote that, according to other industry data, the Kirishi and Achinsk refineries may have higher processing capacities.
Sources
- Ukraine’s New Drones Hit Russia’s Largest Oil Refinery in Record 3,000 Km Strike Into Siberia
- Russia’s largest oil refinery in flames as Ukraine strikes Omsk, 2,500 km away from border
