Ukrainian Drones Strike Ryazan Oil Refinery for Ninth Time This Year

Latest Attack on Key Russian Energy Infrastructure

Ukrainian forces successfully targeted Russia's Ryazan Oil Refinery with drones overnight on December 5-6, 2025. This incident marks the ninth such strike on the facility this year, according to Ukrainian officials. The refinery, owned by Russian state-owned company Rosneft, is one of the largest oil refining enterprises in the Russian Federation.

The attack was confirmed by Ukraine's General Staff, which stated that a 'successful hit' was achieved and 'a hit and a fire were recorded at the facility.' Robert 'Madyar' Brovdi, the commander of Ukraine's Unmanned Systems Forces, also posted a video of the strikes on social media, indicating the involvement of drone units under his command.

Reported Damage and Russian Response

Ukrainian monitoring channels and the Astra project reported that the strike damaged and put out of service a low-temperature isomerization unit (Izomalk-2-LIN-800), which is crucial for producing high-octane gasoline. Additionally, a 'key' hydroprocessing and catalytic cracking/reforming unit reportedly sustained damage. The extent of the damage is still being assessed.

In response, Ryazan Oblast Governor Pavel Malkov acknowledged a drone incident in the region, stating that a 'fire was quickly extinguished' amid falling drone debris. He claimed that 'no casualties or serious damage' occurred. Russia's Defense Ministry further asserted that its air defense systems had shot down 29 drones over Ryazan Oblast during the night.

Strategic Importance of the Ryazan Refinery

The Ryazan Oil Refinery is a significant asset within Russia's energy sector. It boasts a design capacity of 17.1 million tons of oil per year, equivalent to approximately 340,000 barrels of crude a day. In 2024, the refinery processed 13.1 million tons of crude, accounting for about 5% of Russia's total refining capacity.

Located approximately 180-200 kilometers (112-124 miles) southeast of Moscow and about 450-500 kilometers (280-310 miles) from Ukraine's northeastern border, the facility plays a vital role in supplying fuel to Moscow and the surrounding region. It produces essential products such as gasoline, diesel, jet fuel, and aviation kerosene, including for the Russian Aerospace Forces.

Broader Context of Attacks

This latest strike is part of Ukraine's ongoing campaign to target Russian energy infrastructure, aiming to disrupt Moscow's ability to fund its war efforts. The Ryazan refinery has been a frequent target, with previous attacks reported on November 20, November 15, October 23, September 5, and August 2, 2025. In addition to the Ryazan refinery, Ukrainian forces also claimed a simultaneous strike on the Alchevsk Metallurgical Plant in Russian-occupied Luhansk Oblast, a facility reportedly involved in producing artillery shells for the Russian army.