Residents of Omsk were already queuing at petrol stations before dawn on October 8, 2026, in a country short of fuel, when Ukrainian drones hit the city’s oil refinery for the second time in three months.
Ukraine’s Special Operations Forces said their “Deep Strike” units carried out the attack. They used upgraded FP-1 drones made by Fire Point, on a flight path the SSO put at roughly 3,000 km. Russia’s Defense Ministry said its air defenses intercepted 399 Ukrainian drones over 18 regions that night. Omsk governor Vitaly Khotsenko acknowledged on Telegram that at least one drone got through and hit the facility.
The refinery sits in Western Siberia, beyond the Ural Mountains and more than 2,500 km from Ukraine’s border. It is Russia’s largest. It processed roughly 22 million tonnes of crude in 2024, about 440,000 barrels per day, or approximately 1/15th of the country’s refining capacity. Annual output includes five million tonnes of gasoline and eight million tonnes of diesel.
The first hit, in July
A long-range strike on July 6, 2026 had already knocked out the refinery’s main processing unit and forced a full shutdown, according to Crypto Briefing. Khotsenko confirmed the drone incursions and the fire that followed. How long the plant stayed offline has not been disclosed.
Ukraine’s General Staff says Omsk was the last of Russia’s eleven biggest gasoline producers to be targeted, so every one has now been struck at least once. The General Staff also claimed that, as of July 4, 2026, strikes since August 2025 had disabled approximately 42% of Russian refining capacity and caused roughly $13.5 billion in losses. That is a Ukrainian government figure and has not been independently verified.
The General Staff described the campaign as “the exercise by Ukraine of its inalienable right to self-defence in accordance with Article 51 of the UN Charter and is aimed at reducing the military and economic potential of the Russian Federation.”
The October damage assessment is still open. One account described a four-hour operation that reportedly hit one of the refinery’s AVT crude processing units, and noted that Russian authorities had not issued a detailed public damage assessment by early afternoon.
A data center on the same night
The same overnight campaign hit Yandex’s largest data center, in Sasovo, Ryazan Oblast. NASA’s FIRMS satellite service independently confirmed a fire there. Yandex said operations were suspended entirely and that “for the moment, we cannot confirm whether it is possible to restore the data centre equipment in Sasovo.”
Meduza reported that the site houses two of Yandex’s three Nvidia A100-based supercomputers, the hardware behind YandexGPT. Downdetector logged more than 1,300 user reports of disruption to Yandex Cloud, Yandex Documents and Yandex Tables, while search and the taxi platform stayed up. Yandex shares fell more than 3.4% on the Moscow Exchange that Thursday morning, the Moscow Times reported. The paper called it the first strike on Russian data infrastructure since the February 2022 invasion.
What it means for fuel markets
Diesel and gasoline from Omsk feed into global refined-product markets, so a second hit on 440,000 barrels per day of capacity tightens supply. Crypto Briefing noted that a refining shortfall inside Russia does not by itself mean less crude on the world market, since Moscow could export more unprocessed oil. Refined-product markets are another matter if domestic shortages force Russia to keep supplies at home.
Analysts are watching whether Omsk restarts within weeks or stays offline for months, and whether the shortage spreads beyond the city.
Sources
- Ukraine Hits Russia's Largest Refinery Again and Yandex's Biggest Data Center
- Russia's largest refinery shuts down after Ukrainian drone strike, raising global energy supply fears
- Drone Strike on Russia’s Largest Oil Refinery Exposes New Depth…
