Naftogaz of Ukraine has sent to the Stockholm arbitration new lawsuit against Gazprom, and demanded to pay 10 billion dollars, as if lost due to "unfair" transit contract, said Prime Minister of Ukraine Arseniy Yatsenyuk. "Naftogaz of Ukraine" was submitted to the Stockholm arbitration court the claim about indemnification and introducing changes in the transit contract with Gazprom ", - Yatsenyuk wrote in a private Facebook. "for six months after the first recourse to arbitration by the transit contract leading international experts and lawyers have done a great job to clearly prove that the transit agreement is unfair to Ukraine, and more than $ 10 billion must be paid by Naftogaz to Gazprom in the form of compensation of losses," - said Ukrainian Prime Minister." so, the total amount of our claims against Gazprom, the agreement on gas purchase and contract for transit has already exceeded 16 billion dollars, " he wrote. According to the calculations of Gazprom to the Stockholm arbitration court to decide on the dispute of the Russian organization with Ukrainian Naftogaz until the end of January 2017. Kiev expects the decision of the Stockholm arbitration on gas dispute with Russia before the end of 2015. Remember, in 2009 the Russian Federation and Ukraine (Gazprom and Naftogaz signed two gas contract: one applies to gas supplies from Russia for the needs of Ukraine, the second gas transit from Russia via Ukraine to the EU. Naftogaz on June 16 last year immediately after its translation by Gazprom in prepayment filed a lawsuit in the Stockholm arbitration court with the demand to revise the contract for production and delivery of gas. Then it was stated that the Ukrainian state Firm requires to reduce the price of gas and to recover from Gazprom's $ 6 billion overpayment for gas, which he put with 2010. With his own hand, Gazprom appealed to the Stockholm arbitration court with the claim against Naftogaz of debt collection, at the time of the transfer for the prepayment has reached 4.5 billion dollars. Gazprom, in its own report under IFRS for 9 months of 2014) said Details of the second claim of Naftogaz, which was filed in the Stockholm arbitration court on 13 October 2014 and which relates to the transit contract. We emphasize that in March the Stockholm arbitration did not join the October lawsuit Naftogaz 6, $ 2 billion for not delivering the transit volumes and low transit tariffs filed suit in June to $ 6 billion with a requirement for retroactive price changes.