What happened
Ukrainian attacks disrupted operations and caused emergency situations at nine of Russia's 35 major refineries over the past week, sources and officials told Reuters.
The combined daily nameplate capacity of Russian refineries affected by drone attacks since late October, including three major plants in central Russia, stands at around 300,000 metric tons, or 2.2 million barrels, compared with Russia's total primary refining capacity of about 930,000 tons per day.
At the end of October, Russian refineries were processing about 700,000 tons, or 5 million barrels, of crude per day, according to the sources. Reuters' sources estimate that the actual reduction in crude processing volumes at Russian refineries could reach up to 200,000 tonnes per day.