Naftogaz Ukrainy claims against Russia's Gazprom in the arbitration reach $30 billion, Naftogaz Head Andriy Kobolev has said.

"The amount reaches $30 billion," he said at a meeting of the profile parliamentary committee in Kyiv.

Kobolev noted that potential compensation, Naftogaz demands from Gazprom in the arbitration, is the potential assets of Naftogaz. He said that the existing contracts between Naftogaz and Gazprom, if the arbitration supports the Ukrainian side's position on the adjustment of the gas price formula, are valuable since they would allow to buy gas at an attractive price.