European gas deliveries carried by the TurkStream pipeline were halted as planned maintenance work got under way at key facilities, according to transmission data and statements from a national operator.
Data from the European Network of Transmission System Operators for Gas (ENTSOG) and a notice posted by Bulgarian gas network operator Bulgartransgaz show that maintenance began on June 2 at the Russkaya pumping station and at receiving terminals in Turkey. Bulgartransgaz said the work is scheduled to continue through June 10.
The temporary suspension affects a pipeline that, following the lapse of a prior transit arrangement, is currently the only functioning passage for Russian gas into Europe. The five-year transit agreement between Ukraine and Russia ended on January 1, 2025, and was not renewed by Ukraine; TurkStream has therefore remained the single active route for Russian gas transit to European markets.
Countries listed as recipients of gas via TurkStream include Turkey, Serbia, Hungary and Slovakia. The maintenance notice and the transmission data identify the specific facilities undergoing works as the Russkaya pumping station and Turkish receiving terminals, with timing set out from June 2 until June 10.
Information on the interruption and the schedule comes from ENTSOG and Bulgartransgaz; the operators provided the dates and locations for the maintenance activities.
Timeline
- June 2 - Maintenance begins at the Russkaya pumping station and Turkish receiving terminals, per Bulgartransgaz.
- Through June 10 - Planned maintenance window specified by the operator.
Affected route and recipients
- TurkStream is identified as the only operational route for Russian gas transit to Europe following the non-renewal of the Ukraine transit agreement that ended January 1, 2025.
- Countries receiving gas through TurkStream include Turkey, Serbia, Hungary and Slovakia.
The reporting reflects the schedule and scope of the maintenance as provided by the named transmission and network operators. No additional operational details, causes beyond the planned maintenance, or further timelines were given in those notices.