Russian air defences reported intercepting at least 660 drones in a single overnight barrage on 26 June, among the heaviest of the war1. The figure comes from Russian interception counts rather than independent verification, and Ukraine did not publish a launch total.
The barrage is one night in a campaign that, by its own accounting, has taken roughly one-third of Russian refining capacity, about 2.14 million barrels a day, offline2. The Gazprom Neft refinery at Kapotnya, around 40% of Moscow's supply, has been down since an 18 June strike and is not expected back until 2027. Volodymyr Zelenskyy put the drones' reach at 3,000 km inside Russia on 21 June, past the air-defence belt that shields Moscow.
Each refinery strike removes throughput Russia cannot quickly replace, which is how a drone campaign becomes a fuel crisis. The heaviest nights, like 26 June, compound the damage faster than repair crews can offset it, and the drones' reach now puts even Siberian plants inside the map. That is why the pressure surfaced at Putin's desk rather than staying at the pumps.
