Asel Serikpayeva, a representative of Kazakhstan's Energy Ministry, announced the halt, Interfax-Kazakhstan reported. Specialists are now assessing the technical condition of the infrastructure, and the ministry expects oil intake to resume shortly, according to the same statement.
A Reuters source on the oil market said deliveries could be restored as early as the evening of November 2.
The Atyrau-Samara pipeline is part of the Uzen-Atyrau-Samara trunk line, which links Kazakh fields to the Transneft system. It is one of the routes for exporting Kazakh oil through Russian territory.
According to Bloomberg, Kazakhstan exported 7.57 million tonnes of oil along this route in the first nine months of 2026, or slightly more than 200,000 barrels per day. Kazakhstan depends on Russian infrastructure to ship out most of the oil it produces.
Overnight into November 2, Ukrainian drones attacked the Samara linear production and dispatch station owned by Transneft, The Insider reported. A fire on its grounds is confirmed by data from NASA FIRMS, a satellite system that records thermal anomalies.
Vyacheslav Fedorishchev, governor of the Samara Region, said in a post on the Max messaging channel that 46 drones were shot down over the region during the night, including 29 by mobile fire teams of the BARS-Krylya unit. During the attack he warned that its possible targets were the Kuibyshev, Novokuibyshevsk and Syzran oil refineries. The governor did not report any damage to oil infrastructure.