KIEV, Nov. 30 – Naftogaz Ukrayiny Chairman Oleh Dubyna said that the claims of Centragas Beteiligungs Holding AG (Vienna) - the owner of a 50% stake in Switzerland-registered RosUkrEnergo (RUE) - against Ukraine regarding 11 billion cubic meters of gas, which was earlier expropriated from RUE by Naftogaz Ukrayiny, are illogical.

"Naftogaz bought this gas from Gazprom, so let them [Centragas] take it up with [Gazprom]," he said at a press conference in Kiev last week.