Ukrainian drones struck the Ryazan oil refinery in Russia on the morning of 6 September and set one of its core units on fire, Ukrainian defense outlet Militarnyi reported. The unit produces the high-octane component the Rosneft plant needs for its higher grades of gasoline. Russian regional authorities acknowledged a fire without naming the site. Ryazan is situated southeast of Moscow, about 470 km from Ukraine.

What burned at Ryazan

Drones hit the low-temperature isomerization unit for pentane-hexane fractions, designated Izomalk-2-LIN-800, according to Militarnyi's analysis. The unit sits on the refinery's grounds and is one of the critically important links in the plant's production cycle.

It converts low-octane straight-run oil fractions into a cleaner high-octane blending component. That component is what allows the refinery to produce gasolines of the higher environmental classes, Euro-5 among them, without adding harmful additives. 

Ukrainian monitoring channel Exilenova+ published videos of the strike.

The same unit was hit in December

Drones already attacked this unit in December 2025 and damaged it. Earlier waves targeted the plant's ELOU-AVT-3, ELOU-AVT-6, and AVT-1 units.

By May 2026 the refinery had lost 90–100% of its refining capacity. Satellite imagery from 3 August 2026 showed Ukraine's Defense Forces had disabled two of the four crude distillation units on site.

Ukrainian drones struck the refinery in May, and FP-1 drones set it and a nearby warehouse burning in July.

Russian officials report a fire, not a target

Ryazan Oblast governor Pavel Malkov confirmed the region came under drone attack. Drone debris damaged residential buildings in Ryazan and Sapozhkovsky district, he stated, and a fire broke out at an enterprise he did not name. He said there were no casualties and that emergency services were working.

Russian news Telegram channel Astra said its analysis of photographs taken by residents established that the fire was on the grounds of the Ryazan refinery. Ukrainian channel Exilenova+, which tracks such attacks, also reported a hit on the plant.

Russia's fuel squeeze

Ukraine's General Staff said strikes on 26 August and 1 September fully stopped two large refining enterprises: Lukoil-Nizhegorodnefteorgsintez in Kstovo, Nizhny Novgorod Oblast, and the Novatek-Ust-Luga complex in Leningrad Oblast. Both supply the Russian army.

Short of gasoline, Russia has been buying more fuel abroad. Moscow discussed importing gasoline from Kazakhstan in June, and a Kazakh refinery deal would cover 0.3% of Russian demand. Belarus increased its gasoline supplies to Russia nearly 20-fold in the first half of the year.

Ukrainian drones set fire to two fuel depots around Sochi and hit a Russian air defense position overnight on 4 September, according to monitoring channels. They also reported that drones struck an explosives factory and a petrochemical plant in Bashkortostan the same night, more than a thousand kilometers from Ukraine. Russian officials acknowledged the depot fire and said nothing about the air defense site.

Two depots burned behind their anti-drone screens

Astra's OSINT analysts geolocated the fires to the Rosneft-Kubannefteprodukt depot in Sochi's Adler district and to the Lukoil-Yugneftprodukt depot on the federal territory of Sirius. Sochi mayor Andrei Proshunin confirmed a fire at a depot. The regional operational headquarters claimed there were no casualties. Sochi is a Russian resort city on the eastern Black Sea coast, about 600 km from the frontline in Ukraine.

The Ukrainian OSINT channel Cyberboroshno identified one of the hit sites as the BATO aviation fuel terminal, which fuels aircraft at airports across Krasnodar Krai. Every tank there stood behind purpose-built protective structures, Militarnyi reported, and the Lukoil site holds 12 tanks with a combined volume of about 8,400 m³. The burning depot sits roughly 100 meters from Sochi international airport, Russia's fifth-busiest by passenger traffic in 2024, the Russian outlet Agentstvo found.

Panoramic imagery from this year shows anti-drone netting around the tanks at both depots. Two days before the strikes, Russian Deputy Prime Minister Aleksandr Novak claimed Russian refineries were better protected than those in the UAE, and Russian President Vladimir Putin said their protection level was now completely different.

An air defense position caught fire near the Abkhazia border

Astra analyzed eyewitness footage and placed a detonation and fire at a launch position near the settlement of Sirius, by the Psou river on the Abkhazia border, where an S-300 or S-400 system is based. The Ukrainian monitoring channels Exilenova+ and Supernova+ said drones struck the air defenses directly. Russia's Defense Ministry and local authorities reported nothing about it.

Drones had tried the same area in May. A Ukrainian sea drone struck the Russian supply vessel Nefrit at Sochi port the previous day.

Explosives and petrochemicals hit in Bashkortostan

Drones reached Sterlitamak on the morning of 4 September, hitting the Avangard plant and the Sterlitamak Petrochemical Plant, footage published by Supernova+ shows. Residents reported a series of explosions, and one man said on video that about a dozen drones had already flown toward the petrochemical works. The frames show Ukrainian FP-1 strike drones. 

 Russia's Defense Ministry claimed it downed 490 drones overnight across several regions, occupied Crimea, and the Black Sea.

Ukrainian drones attacked two Ozon logistics centers overnight on 27 August, one in Ufa and one in Orenburg Oblast, Russia's second-largest online store said. Staff were evacuated at both sites, and preliminary information indicated no casualties. Video published by Ukrainian monitoring channel Exilenova+ shows a drone reaching the Bashkortostan warehouse and exploding.

The strike on camera

Exilenova+ reported in the morning that an Ozon warehouse was burning after impacts in Blagoveshchensk, a town north of Ufa. The Bashkortostan capital lies roughly 1,300 kilometers from the war zone in Ukraine. Around midday the channel published eyewitness video of what it called the moment of a drone attack on the site, and said the warehouse had not caught fire. The footage shows a drone reaching the site and detonating there.

Earlier, the channel reported that residents of Sterlitamak, Bashkortostan's second-largest city, about 120 kilometers from Ufa, had written about explosions, with nothing then known about impacts. Astra later placed smoke over what it said was probably the Bashkir Soda Company works there.

Ozon said the Orenburg site—about 1,200 kilometers from the war zone—has resumed work. The one it placed in Ufa sustained what it called minor damage but remains closed, because the grounds need a thorough inspection. It is not accepting deliveries.

Russian news Telegram channel Astra identified the damaged facility from the eyewitness footage as Ozon's UFA_RFC fulfillment center in Blagoveshchensk. When it opened in late 2024 it was billed as the largest Ozon logistics complex in Russia's Volga federal district, with a total area of 93,000 square meters.

Smoke over the Ufa refineries

Astra also traced smoke in eyewitness footage to the Bashneft-Ufaneftekhim refinery in Ufa. The plant is one of Rosneft's leading refineries and a dual-use site: it supplies specialized fuel to Russia's armed forces and petrochemical feedstock for defense-grade materials. It burned after a strike on 1 August.

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Ukrainian drones hit warehouse belonging to Russian online retailer Ozon for the first time

What officials said, and didn't

Bashkortostan's authorities did not report the attack. Orenburg Oblast governor Yevgeny Solntsev mentioned drone danger in his region but gave no account of consequences. Ufa closed its airport.

Russia's Defense Ministry claimed air defenses destroyed 267 Ukrainian fixed-wing drones overnight across Russian regions, Bashkortostan among them.

The campaign so far

Ukraine's warehouse campaign began with Wildberries, Russia's largest online marketplace, which lost eight warehouses and roughly 860,000 square meters of storage in July alone. It reached Ozon for the first time on 22 August at Chapayevsk in Samara Oblast, where more than 500 employees evacuated and people were hurt. Four more Ozon hubs were hit across southern Russia two nights later.

Ukrainian forces struck production facilities at the Novokuybyshevsk oil refinery in Russia’s Samara Oblast overnight on 22 August, sparking a fire at the Rosneft-owned plant, Ukraine’s General Staff said. The extent of the damage remains under assessment.

Ukraine has repeatedly targeted Russia’s oil refineries to restrict military fuel supplies and reduce the energy revenues supporting Moscow’s war. The latest strike came as gasoline rationing returned to Moscow and St. Petersburg, and Rosneft capped nationwide purchases. Militarnyi described the plant as one of Russia’s 10 largest refineries.

The Rosneft-owned refinery can process about 8.8 million metric tons of crude annually and produces more than 20 petroleum products, including aviation fuel and diesel, Ukraine’s General Staff said.

Fire Point said FP-1 long-range drones were used to strike the refinery.

The same overnight wave also hit an Ozon logistics center in Chapayevsk, where people were injured, and work was halted, Reuters reported, citing the company.

Neither the damage to the refinery nor any interruption to production has been independently confirmed.

Ukraine keeps pressure on Russian fuel supplies

The strike came one day after Ukraine confirmed hitting Lukoil’s Perm refinery, approximately 1,530 kilometers from Ukraine’s northern border. That attack also caused a fire, according to the General Staff.

At least four Russian refineries went offline during August amid continuing Ukrainian attacks.

By mid-August, filling stations in at least 12 Russian regions were experiencing hours-long lines. Some areas had reintroduced purchase limits or rationing based on license-plate numbers, according to the same report.

Gasoline limits had also been reinstated in Moscow and St. Petersburg, while Rosneft had capped sales at 30 liters per vehicle across its nationwide filling-station network. Diesel purchases remained unrestricted.