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Major Russian Oil Refinery Forced to Stop Processing After Ukrainian Deep Strike
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The Slavneft-Yaroslavnefteorgsintez (YANOS) oil refinery in Yaroslavl has completely halted crude oil processing following an overnight Ukrainian drone attack that hit vital production equipment, according to Reuters, citing industry sources on September 17.
The facility, located about 250 kilometers northeast of Moscow, suffered direct damage during the strike.
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Ukrainian targeted attacks on Russian energy infrastructure continue as a response to Russia's ongoing strikes against Ukrainian territory.
The attack disabled the primary distillation unit AVT-3, which has a processing capacity of 17,140 metric tons per day. This single unit accounts for roughly 40% of the refinery's total capacity.
The plant operates two other primary distillation units: AT-4, capable of processing 11,430 tons per day (27% of total capacity), and AVT-4, with a capacity of 14,300 tons per day (33% of total capacity). According to Reuters' sources, the AVT-4 unit was already down for repairs following a previous drone strike on August 28.
Regional Governor Mikhail Yevrayev stated that local forces intercepted a total of 65 drones during the widespread raid.
He confirmed that while no casualties were reported, the refinery sustained physical damage and emergency teams worked to extinguish fires at the site. Ukrainian President Volodymyr Zelenskyy confirmed the long-range strike against the Yaroslavl facility during his address.
Following the outage, energy traders told Reuters that refined fuels produced by the Yaroslavl plant were pulled from domestic market trading.
Slavneft management did not immediately respond to requests for comment regarding the full scope of the operational shutdown or a timeline for repairs.
On August 6, 2026, a drone attack struck the Russian city of Yaroslavl, igniting a fire at the Slavneft-YANOS oil refinery, one of Russia's five largest crude processing facilities.
Local residents reported hearing multiple explosions and recorded columns of dark smoke rising above the city, while Regional Governor Mikhail Yevrayev announced the temporary suspension of traffic on the highway leaving Yaroslavl toward Moscow for safety reasons.
An OSINT analysis by the Telegram channel Astra geolocated one of the resulting fires directly to the facility, which annually processes around 15 million metric tons of crude into Euro-5 fuels, aviation kerosene, and other petroleum products.
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