SYNKIV (Ternopil region), Sept. 24 - Attempts to dispute Naftogaz Ukrayiny’s contract with Russia's Gazprom on gas purchases in 2009-2019 will end in failure for Kiev, so the only option is to reduce gas purchases, though this is also fraught with risks, said Dmytro Firtash the co-owner of gas trader RosUkrEnergo.

The Ukrainian government and Naftogaz "have not consulted me, but essentially this is the only right decision," Firtash told reporters.