MOSCOW, August 14 (RAPSI) – Finnish company Gasum Oy has filed a lawsuit with the Arbitration Institute of the Stockholm Chamber of Commerce against Gazprom Export, a subsidiary of Gazprom company, requesting a review of prices for natural gas deliveries to Finland, Russian gas giant said in a statement on Friday.

Over the first six months this year, Russian gas deliveries to Finland have decreased by 11%, down to 1.507 billion cubic meters.

Gasum is demanding a review of natural gas prices and a different price formula, reducing the share of the take-or-pay component or, alternatively, reducing the annual contractual amounts to the level equal to the entire volume of natural gas that may be circulating in the Finnish market based on the price established by the arbitration.

Gazprom Export must name an arbitrator within 30 days.