A general view shows the headquarters of the Russian natural gas monopoly giant Gazprom building in Moscow on January 7, 2009. All deliveries of Russian gas through Ukraine were halted on January 7, intensifying a bitter dispute between Moscow and Kiev, which risks depriving Europeans of gas amid freezing weather. In a new twist, Russian Prime Minister Vladimir Putin told state-run energy giant Gazprom on January 7 to cease all deliveries of natural gas into Ukraine.