Ukraine says it hit Yaroslavl oil refinery, sources say output suspended

Ukraine’s military said on Friday (December 12, 2025) it attacked a major Russian oil refinery in Yaroslavl, north-east of Moscow, and industry sources said the facility had suspended output.

Ukraine and Russia have been attacking each other’s energy facilities as peace talks have failed to produce a breakthrough on ending the nearly four-year-old war.

“Units of the Ukrainian Defence Forces have struck the capacity of the Slavneft-YANOS oil refinery in Russia’s Yaroslavl region,” the Ukrainian military’s General Staff wrote on Facebook. “Explosions and a large fire were recorded in the area of ​​the target. The extent of the damage is being determined.”

The industry sources said Ukrainian drones damaged a primary processing unit and a loading rack at the refinery, Russia’s fourth largest. Output had been suspended, they said.

Slavneft-YANOS, located some 250 km (155 miles) north-east of Moscow, has an oil processing capacity of 300,000 barrels per day, or 15 million metric tons per year.

The damaged CDU-4 processing unit accounts for around a third of the plant’s production capacity.

The company’s press service did not reply to a request for comment.

Last year, it produced 2.6 million tons of gasoline, 4 million tons of diesel and 4.7 million tons of fuel oil, according to industry sources.