Naftogaz definitively wins $1.4 billion lawsuit against Gazprom in Swiss Supreme Court

Moreover, the court ordered the Russian company to pay court fees of CHF 200,000 and to compensate Naftogaz for CHF 250,000 in costs incurred in the proceedings before the Federal Supreme Court.

We remind you that in July 2025, Gazprom initiated proceedings to set aside the arbitral award and at the same time filed a motion to suspend its enforcement until the conclusion of the proceedings. In November 2025, the Swiss Federal Supreme Court rejected the request to suspend the enforcement. Now, the Court has rejected Gazprom’s appeal on its merits in full.

Hence, Switzerland’s highest court has confirmed the validity of the arbitral award and definitively rejected the Russian side’s arguments. Naftogaz will carry on working on the enforcement of this award and is continuing a number of other proceedings against the aggressor country,” said Sergii Koretskyi, CEO of Naftogaz.

Naftogaz’s interests in the proceedings to set aside the arbitral award were represented by its long-standing counsels from the law firms Gabriel Arbitration, Wikborg Rein, Nybron, and Bono Legal.

For reference

Under the 2019 Agreement on the Organisation of Natural Gas Transportation, Naftogaz was obliged to organise the transit of natural gas through Ukraine for Gazprom until the Agreement expired on 1 January 2025.

In May 2022, hostilities of the Russian occupation forces made it impossible to organise the gas transit through the Sokhranivka entry point. Despite this, Naftogaz continued to provide the gas transit services stipulated in the Agreement through the Sudzha entry point. Nevertheless, Gazprom refused to pay the full amount for the organisation of gas transportation, thereby violating its contractual obligations.

In September 2022, Naftogaz initiated arbitration proceedings in Switzerland in accordance with the Rules of the International Chamber of Commerce (ICC), as provided for in the Agreement.

In June 2025, the Arbitral Tribunal with its seat in Switzerland issued its Final Award, finding Gazprom fully liable for its failure to meet its payment obligations and establishing that there were no valid grounds for non-payment. The Tribunal ordered Gazprom to pay the debt for gas transportation services, interest, and arbitration costs.