Ukrainian drones attacked Russia’s Slavneft-Yanos oil refinery in Yaroslavl Oblast overnight on August 6, marking the second consecutive night the facility was targeted by long-range strikes.
Videos circulated on Telegram showed massive plumes of smoke rising over Yaroslavl, roughly 700 kilometers from the Ukrainian border. The independent Russian news channel Astra confirmed via geolocation that the refinery was on fire. Governor Mikhail Yevrayev announced the drone attack overnight and imposed traffic restrictions on the road leading to Moscow, though he made no direct mention of the refinery itself.
The Slavneft-Yanos facility is the largest oil refinery in central Russia and among the five biggest nationwide. It processes approximately 15 million metric tons of crude oil annually and produces gasoline, diesel, jet fuel, liquefied gases, and fuel oil. The plant had already been attacked four times in May 2026 alone, according to local monitoring channels.
President Volodymyr Zelensky confirmed the previous night’s strike on August 5, calling the refinery a facility of great importance for financing Russia’s war. He described the operation as part of Ukraine’s long-range sanctions campaign against Russian energy infrastructure.
The overnight strike follows an intensifying Ukrainian campaign targeting Russian oil and fuel facilities deep behind the front line. Central Russian refineries have begun halting production in response to repeated drone attacks, deepening a fuel crisis across the country. Reuters reported that Russia has had to redirect fuel from refineries in the Urals and Siberia and increase deliveries from Belarus to stabilize supplies in Moscow.
The KSE Institute’s 2026 mid-year sanctions assessment noted that Russia’s operational refinery capacity has fallen to roughly 57 percent of pre-war levels following the sustained Ukrainian drone campaign. The strikes have also driven up insurance costs for tanker operations and caused loading delays at multiple facilities.
Moscow-area residents reported fires at several homes following the strikes, though these reports could not be independently verified. The road closure near the refinery’s location on Moskovsky Prospekt caused significant traffic disruption overnight.
The attack is part of a broader pattern of Ukrainian long-range strikes that have targeted Wildberries logistics centers, the Druzhba pipeline hub in Tatarstan, and oil depots across Russia since mid-July, significantly increasing the economic cost of the war for Russian businesses and consumers.
Sources: Kyiv Independent, KSE Institute 2026 Mid-Year Assessment
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