Russia’s massive Orenburg gas processing plant has halted gas intake from Kazakhstan after being struck by a Ukrainian drone, Kazakhstan’s energy ministry confirmed on Sunday. The facility, one of the world’s largest with an annual processing capacity of 45 billion cubic metres, suffered partial damage when a fire broke out following the attack. Regional governor Yevgeny Solntsev said emergency services quickly contained the blaze, while operator Gazprom has yet to reveal the full extent of the damage or when operations will resume.
The Orenburg plant, part of the vast Orenburg gas chemical complex, processes gas condensate from Russia’s Orenburg field and Kazakhstan’s Karachaganak field. Its temporary suspension could impact cross-border gas flows and regional energy supply stability. Although no injuries were reported, the incident underscores growing risks to Russia’s energy infrastructure as Ukraine intensifies strikes on oil and gas facilities deep inside Russian territory.
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Ukraine’s military confirmed responsibility for the drone attack, saying it targeted both the Orenburg gas plant and an oil refinery in the Samara region. Officials said the strikes caused explosions and fires at both sites. Kyiv has ramped up long-range drone operations since August, aiming to disrupt Russia’s fuel production and restrict revenue used to fund the war. Ukrainian defence officials claim these strikes are a legitimate effort to weaken Moscow’s war economy.
In response, Russia’s Defence Ministry said its air defence systems intercepted 45 Ukrainian drones overnight across several regions, including 12 over Samara, 11 over Saratov, and one over Orenburg. Despite the interceptions, some drones reached their targets, causing visible damage. The governor of Samara confirmed that air defences were active throughout the night, adding that local airports and mobile internet services were temporarily shut down for security reasons.
Kazakhstan’s energy ministry said Gazprom had formally notified it of the emergency but provided no details about how the disruption would affect gas flows from the Karachaganak field. The ministry added that it was monitoring the situation closely and awaiting updates on repair timelines. Meanwhile, experts warn that continued Ukrainian drone strikes on energy facilities could strain Russia’s domestic fuel supply and escalate the ongoing economic and logistical pressure on Moscow’s war effort.