Naftogaz finally wins USD 1.4 billion lawsuit against Gazprom in Swiss Supreme Court

The Federal Supreme Court of Switzerland has completely rejected the application of the russian company Gazprom to annul the arbitration award of June 16, 2025, according to which the russians must pay the Naftogaz of Ukraine national joint stock company more than USD 1.4 billion in debt for services for organizing the transportation of natural gas, plus interest.

This is announced in a statement by the Naftogaz group, Ukrainian News Agency reports.

The court also ordered the russian company to pay legal costs in the amount of CHF 200,000 and compensate Naftogaz for CHF 250,000 for the costs incurred in the proceedings before the Federal Supreme Court.

It is noted that in July 2025, Gazprom initiated proceedings to annul the arbitration award and simultaneously filed a motion to suspend its execution until the case is considered.

In November 2025, the Federal Supreme Court of Switzerland rejected the motion to suspend execution, and the court also completely rejected Gazprom's complaint on the merits.

As Ukrainian News Agency earlier reported, in June 2025, the Naftogaz of Ukraine national joint stock company won against russia's Gazprom in international arbitration.

Then, a tribunal in Switzerland ruled that the russian company must pay the Ukrainian side USD 1.37 billion.

In September 2022, Naftogaz filed an arbitration claim against Gazprom due to underpayment under the transit contract.

In June 2022, gas transit through the Ukrainian gas transportation system to Europe reached a historic low of 1.25 billion cubic meters, a 3-fold decrease compared to June 2021. In 2021, Ukraine reduced gas transit through its gas transportation system to Europe by 25.4% to 41.6 billion cubic meters compared to 2020.