A fire broke out at the Kuibyshev oil refinery in Samara, Russia, following a drone strike on 10 June, according to OSINT analysis by Astra and Russian Telegram channels.

The Kuibyshev refinery is one of the largest oil industry facilities in the region and is part of Rosneft. The 10 June strike is the third reported attack on the plant since August 2025.

What happened overnight

Residents of Samara Oblast reported explosions during the night of 9–10 June. The regional governor wrote of a missile threat in the oblast.

Astra said its analysis of eyewitness footage established that the Kuibyshev refinery in Samara was struck and caught fire.

The same refinery halted operations in August 2025 following a drone attack, Russian social media channels reported. It was struck again in January 2026.