MOSCOW, February 2 (RAPSI) - Polish oil giant PGNiG has filed with the Arbitration Institute of the Stockholm Chamber of Commerce (SCC) a lawsuit against Gazprom over gas prices, Poland’s company announced on its website.

According to the statement, arbitration proceedings do not rule out negotiations for trade between parties and reaching an agreement. The company did not provide more detailed information on the proceedings and its demands because of confidentiality.

From January to September 2015, Russia has supplied about 7 billion cubic meters of gas.

In November 2014, PGNiG requested Gazprom and its subsidiary Gazprom Export to revise the price of firm gas due to material changes at the European energy market in recent years.

Time for potential negotiations  expired in May and  PGNiG turned to court.