Rosneft's Kuibyshev refinery was forced to shut down both primary refining units after a fire, halting production completely, sources told Reuters. Drone damage to the AVT-5 primary unit, with a capacity of 9,500 tons per day, halted operations. However, the refinery was then forced to shut down a second primary refining unit, the 10,500 tons per day AVT-4, as well. AVT-4 was not hit in the attack, but was unable to continue operation because it is technologically connected to AVT-5.
Rosneft's Kuibyshev refinery was forced to shut down both primary refining units after a fire, halting production completely, sources told Reuters. Drone damage to the AVT-5 primary unit, with a capacity of 9,500 tons per day, halted operations. However, the refinery was then forced to shut down a second primary refining unit, the 10,500 tons per day AVT-4, as well. AVT-4 was not hit in the attack, but was unable to continue operation because it is technologically connected to AVT-5. 
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