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Ukrainian Drone Cripples Russia's Fourth-Largest Refinery, Cuts Output

6/28/2026

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Summary

Story summary

A Ukrainian drone strike crippled NORSI’s primary crude distillation unit, cutting about a quarter of capacity.
The hit forced the fourth-largest Russian refinery, with a 17 million-ton design capacity, to halt production.
A similar May drone strike shut down the main crude unit AVT-6, showing a pattern of attacks.
The complex, which supplied over 5 million tons each of gasoline and diesel and makes >50 products, underpins domestic fuel supply.

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Story summary

A Ukrainian drone strike crippled NORSI’s primary crude distillation unit, cutting about a quarter of capacity.
The hit forced the fourth-largest Russian refinery, with a 17 million-ton design capacity, to halt production.
A similar May drone strike shut down the main crude unit AVT-6, showing a pattern of attacks.
The complex, which supplied over 5 million tons each of gasoline and diesel and makes >50 products, underpins domestic fuel supply.