# Ukraine’s Long-Range Drone Campaign Hits Two Major Russian Refineries, Testing Moscow’s Energy Shield

*Sunday, June 28, 2026 at 8:05 AM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-06-28T08:05:15.996Z (2h ago)
**Category**: conflict | **Region**: Eastern Europe
**Importance**: 9/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/9116.md
**Source**: https://hamerintel.com/summaries

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**Deck**: Ukrainian forces struck the Slavyansk EKO refinery in Krasnodar and the Slavneft-YANOS complex in Yaroslavl, targeting facilities that help fuel Russia’s military and occupied Crimea. As Russia claims it downed more than 200 drones overnight, the attacks turn refineries and gas units hundreds of kilometers from the front into an active war zone, with implications for Moscow’s war machine and global fuel flows.

Russia’s refinery belt is back in the blast radius. Overnight on 28 June, Ukrainian forces launched a wave of long-range drone strikes that hit at least two major oil facilities deep inside Russia, intensifying a campaign aimed at eroding the Kremlin’s ability to fuel its war and its domestic economy at the same time.

Ukrainian Defense Forces struck the Slavyansk EKO refinery in Slavyansk-on-Kuban in the Krasnodar Territory, a plant capable of processing around 5.2 million tons of crude per year and an important supplier of fuel to Russia’s army and occupied Crimea. Imagery and local reporting described heavy smoke spreading across the city, visible up to roughly 45 kilometers from the site. Separate thermal data from satellite fire-detection systems indicated a blaze at the nearby Slavyanskaya oil stabilization and gas processing unit, operated by RN-Krasnodarneftegaz, suggesting a wider cluster of energy infrastructure was targeted in the same raid.

Farther north, Ukrainian drones also targeted the Slavneft-YANOS refinery in Yaroslavl, one of Russia’s largest refineries with an annual capacity of about 15 million tons. The facility is considered strategically important for Russia’s fuel industry, feeding both civilian markets and, by many assessments, the logistics chains that keep Russian military vehicles running. President Volodymyr Zelensky said that in honor of Ukraine’s Constitution Day, forces had not only hit the Slavyansk refinery but also a refinery in Yaroslavl, an implicit claim of responsibility for the expanding range of strikes.

Russia’s Defense Ministry countered that its air defense systems had shot down 213 Ukrainian drones overnight over several regions as well as over the Black and Azov Seas. Officials acknowledged that the Slavyansk Oil Refinery was among the facilities attacked and confirmed that a fire broke out on its grounds. In the wider Krasnodar region, one person was reported killed and another injured in drone-related incidents, underscoring the human cost as strategic infrastructure becomes a battlefield.

For workers at these facilities, their families in nearby towns, and the truck drivers and rail crews who move fuel across southern Russia, the impact is not abstract. Night shifts now carry the risk of shrapnel and secondary explosions. Cities that previously watched the war at a distance are discovering that the fuel they refine for tanks and aircraft can draw Ukrainian drones to their doorstep. Insurance costs, worker retention, and the willingness of contractors to operate in exposed regions are all practical concerns Moscow must manage alongside the physical damage.

Strategically, sustained pressure on large refineries like YANOS and Slavyansk EKO threatens to tighten the margin of error in Russia’s fuel balance. Even temporary outages can force rerouting of supplies, dip into reserves, or delay exports, with knock-on effects for revenue and battlefield logistics. The strikes also send a message to occupied Crimea and Russian commanders: the infrastructure feeding your bases is not safe just because it sits hundreds of kilometers from the front line.

For global markets, these attacks add another variable to an already fragile energy equation. While Russia has so far managed to keep oil exports flowing despite sanctions and earlier Ukrainian strikes, every additional hit on a high-capacity plant revives questions about how much unplanned disruption the system can absorb. Traders and policymakers will be watching not just the headline capacity figures, but signs of sustained throughput reductions, delays in maintenance, and any quiet rationing to domestic consumers.

The pattern is clear: Ukraine is seeking to turn Russia’s depth into a liability, forcing Moscow to defend a vast web of refineries, depots, and processing units with air defenses already stretched by daily drone and missile threats. For Russia, every successful strike is a reminder that industrial geography cannot be moved out of range of evolving Ukrainian capabilities.

Key indicators in the coming days will include confirmation of the extent and duration of damage at Slavyansk EKO, the Slavyanskaya gas processing unit, and YANOS; any visible rerouting of fuel supplies toward Crimea and frontline districts; and whether Russia responds with further large-scale strikes on Ukrainian energy infrastructure, deepening a tit-for-tat that increasingly makes critical civilian industry on both sides part of the war’s main theater.