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Russia's Kuibyshevsk refinery halted operations after drone attacks, sources say

Published by Global Banking & Finance Review

Posted on August 29, 2025

2 min read

· Last updated: March 1, 2026

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MOSCOW (Reuters) -Oil processing at Russia's Kuibyshevsk refinery, which is operated by the Rosneft oil company, has been halted since August 28 following Ukrainian drone attacks, two industry sources

Kuibyshevsk Refinery Ceases Operations Following Drone Strikes

Impact of Drone Attacks on Oil Refining

MOSCOW (Reuters) -Oil processing at Russia's Kuibyshevsk refinery, which is operated by the Rosneft oil company, has been halted since August 28 following Ukrainian drone attacks, two industry sources said.

Details of the Damage

According to the sources, the attack damaged both primary oil refining units at the refinery: CDU (crude distillation unit)-4 and CDU-5, each with a capacity of 70,000 barrels per day (bpd).

Operational Status of Other Refineries

In addition to the primary units some secondary refinery units were damaged.

Production Capacity and Output

According to the sources, the Kuibyshevsk refinery resumed oil refining on August 21, having completed a major overhaul that had been underway since July 1.

Rosneft did not immediately comment on a Reuters request.

The Kuibyshevsk refinery is part of Rosneft's Samara group of refineries, which also includes the Novokuibyshevsk and Syzran refineries.

Currently, the Syzran oil refinery is also not operational, having stopped on August 15 due to drone damage. On August 2 the Novokuibyshevsk refinery was also attacked by drones.

The capacity of the Kuibyshevsk refinery is 7.0 million tons of oil per year, or some 140,000 barrels per day.

The Kuibyshevsk refinery processed 4.7 million metric tons of crude oil in 2024, produced 0.8 million tons of motor gasoline, 1.4 million tons of diesel fuel, and 1.3 million tons of fuel oil, according to industry sources.

(Reporting by Reuters, Editing by Louise Heavens)

Key Takeaways

  • Kuibyshevsk refinery halted due to drone attacks.
  • Primary oil refining units CDU-4 and CDU-5 damaged.
  • Rosneft's Samara group refineries affected.
  • Syzran refinery also non-operational since August 15.
  • Novokuibyshevsk refinery attacked on August 2.

Frequently Asked Questions

What caused the halt in operations at the Kuibyshevsk refinery?
The Kuibyshevsk refinery halted operations due to Ukrainian drone attacks that occurred on August 28.
What units were damaged in the drone attacks?
The attacks damaged both primary oil refining units at the refinery: CDU-4 and CDU-5.
When did the Kuibyshevsk refinery resume operations before the attacks?
The Kuibyshevsk refinery resumed oil refining on August 21 after completing a major overhaul.
What is the annual capacity of the Kuibyshevsk refinery?
The Kuibyshevsk refinery has an annual capacity of 7.0 million tons of oil, which is approximately 140,000 barrels per day.
Are other refineries in the region also affected?
Yes, the Syzran oil refinery is currently not operational due to drone damage, and the Novokuibyshevsk refinery was also attacked earlier.

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