The Russian oil refinery Orsknefteorgsintez stopped refining on August 11 after a fire caused by an attack by Ukrainian UAVs.

Reuters reports this, citing industry sources, Censor.NET reports .
Details
The interlocutors reported that the drone damaged some of the plant’s oil refining facilities.
The design capacity of the Orsk refinery is 5.76 million tons of oil per year, or about 115,200 barrels per day.
In 2024, the enterprise processed 4.2 million tons of oil, producing 1.8 million tons of diesel fuel, 600,000 tons of gasoline, 500,000 tons of bitumen, and 200,000 tons of fuel oil. Джерело: https://censor.net/ua/n4018044
(c)CENSOR.NET 2026
