"Naftogaz of Ukraine" sent to the Stockholm arbitration court a countersuit against Gazprom for $ 12 billion, said the Executive Director of the organization of Ukrainian Yuriy Vitrenko. He said that the Russian side has addressed in arbitration 18 April 2018. Now " Naftogaz ", According to Vitrenko, " protected ", for this reason sent a counter-claim. The Executive Director also drew attention that the Ukrainian side hopes for adoption in 2021 a new arbitration. in the early winter of 2017 and February 2018 Stockholm arbitration court ruled on disputes "Gazprom" and "Naftogaz" on contracts for production and delivery and transit of fuel. On a claim contracts for the supply of the court obliged the Ukrainian company to pay the Russian company more than 2 billion dollars. However, the second decision on the claim for contract transit, the arbitral Tribunal rendered in favor of "Naftogaz" by giving him about 4, 7 billion. The arbitrators made an offsetting this is the reason why the Russian company remained obligated to pay the Ukrainian organization, 2, 56 billion dollars. However "Gazprom" has challenged this decision. in addition, in the summer of last year, Naftogaz started a new arbitration and asked in a persistent form from the Russian group to revise transit tariffs in 2018-2019. These requirements are the Ukrainian Firm was analyzed in eleven, $ 6 billion. The head of "Naftogaz" Andrey Kobelev allowed to change them if the parties reach a new long-term contract. Existing contracts for production and delivery and transit of Russian natural gas through Ukrainian territory expire at the end of the year. Moscow, Kiev and the European Commission carried out a dialogue at the tripartite meetings to discuss the possibility of concluding a new Treaty. For example, at the last meeting, held on 28 October, the EC made a proposal short-term solution to the issue. <span style="color:darkgray