Ukrainian forces, with support from Russian insurgency group Chernaya Iskra, conducted a strike against the Kirishinefteorgsintez Oil Refinery in Kirishi, Leningrad Oblast on the night of October 3-4.
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Ukrainian forces struck Kirishinefteorgsintez Oil Refinery with support from Chernaya Iskra
Ukrainian drones struck the Kirishi oil refinery overnight on October 4
The refinery is located more than 800 kilometers from Ukraine's border
The refinery accounts for 6.6% of Russia's total oil refining volumes
The strike sparked a fire at the refinery that was later extinguished
Ukrainian drone attack on Kirishi oil refinery caused fire and shut down CDU-6 unit with 160,000 bpd capacity
Repairs will take about a month and refinery will operate at 70% capacity during repairs
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Extracted: 2026-07-18T16:57:40.005Z
Source story: russian-offensive-campaign-assessment-october-4-2025