Oleh Dubyna, the head of Ukrainian state energy firm Naftogaz, speaks during a news conference in Kiev, Ukraine, Wednesday, Jan. 7, 2009. Oleh Dubyna said Wednesday that Russia had stopped pumping gas to Europe through Ukraine, the latest action in a pricing dispute that has reduced or halted fuel supplies to a dozen countries during a winter cold snap. (AP Photo/Efrem Lukatsky) (AP Photo / Efrem Lukatsky)

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