Speaking at an online briefing ahead of next week's U.S.-Japan Energy Security Dialogue, Pyatt also said the United States and its partners in the Group of 7 were committed to denying Russia any energy revenues. "It's very clear to me that Russia is never again going to be viewed as a reliable energy supplier," Pyatt told reporters. "In the case of our G7 partners in particular, we are also committed to work jointly to deny Russia future energy revenues, and target in particular investments and projects growing Russia's future energy revenue," he added. Russia has played down the impact of Western sanctions, saying they are used by the United States to eliminate Moscow as a competitor in global energy supplies. In September, the United States issued fresh sanctions related to Russia's Novatek-led (NVTK.MM) Arctic LNG 2 project in which two Japanese energy firms - Mitsui (8031.T) and JOGMEC - are shareholders.

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Persons: Alexey Malgavko, Energy Resources Geoffrey Pyatt, Pyatt, Yuka Obayashi, Miral Organizations: REUTERS, Rights, Energy Resources, Russia, Japan Energy Security, United, Mitsui, JOGMEC, Thomson Locations: Siberian, Omsk, Russia, Washington, Moscow, Ukraine, U.S, United States, Japan