The Russian energy giant Gazprom has filed a lawsuit seeking over $900 million from Polish companies in a St. Petersburg court, as court documents revealed on Thursday.

The specific reasons behind these compensation claims have not been disclosed. However, Gazprom has recently been involved in lawsuits with other Central European energy companies, stemming from mutual claims over lost revenue or unpaid bills.

In 2022, Poland denounced its agreement with Russia for receiving Russian natural gas through the Yamal gas pipeline. This action followed Warsaw’s refusal to pay for the gas in rubles, which led to Moscow’s response of halting gas supplies.

Gazprom is seeking compensation of $710 million and 886.4 million zlotys (approximately $224.70 million) from Europol GAZ SA, Orlen SA, Ernst and Young Global Ltd, and "Earnst and Young sp z oo Corporate Finance Sp. k". A preliminary hearing is scheduled for April 10th.

In a retaliatory move, Europol Gaz has sought compensation in the courts from Gazprom for lost revenue and the failure to transport natural gas through Polish territory from 2023 to 2045.

In October, Poland's state-controlled refining company Orlen took over the Polish section of the Yamal pipeline. This meant that Gazprom would no longer have a stake in Europol Gaz, which owns the Polish segment of the Yamal pipeline. Previously, Orlen and Gazprom each held 48% of Europol Gaz's shares.

The Arbitration Court of St. Petersburg and the Leningrad Region ruled in November that Europol Gaz must pay a fine of approximately $1.57 billion if it continues its lawsuit seeking 6 billion zlotys from Gazprom in Sweden.

A Russian court stated on Wednesday that the Czech company Net4Gas must pay a fine of approximately 112.96 million euros ($122.7 million), unless it withdraws its lawsuit against Gazprom for delayed payments, as reported by the news agency TASS.