British Petroleum Chief Economist Christof Rühl at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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British Petroleum Chief Economist Christof Rühl at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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British Petroleum Chief Economist Christof Rühl at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Vladimir Yevtushenkov, chairman of AFK Sistema directors' board, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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From left: Deputy Energy Minister Kirill Molodtsov, OPEC Secretary General Abdalla Salem El-Badri, Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri, left, and Alexander Medvedev, right, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Visitors attending Burintech's stand at the World Petroleum Congress held in the Moscow-based Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitor at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Prirazlomnaya oil rig scale model on display at Gazprom’s stand at the World Petroleum Congress held in the Moscow-based Crocus Expo International Exhibition Center.

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Visitors attending Gazprom’s stand at the World Petroleum Congress held in the Moscow-based Crocus Expo International Exhibition Center.

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Stand of BP company at the 21st World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri addresses the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Deputy Energy Minister Kirill Molodtsov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Deputy Energy Minister Kirill Molodtsov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov answers journalists' questions at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Alexander Medvedev, Gazprom deputy board chairman, Gazprom Export director general, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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LUKOIL President Vagit Alekperov at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri addresses the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri addresses the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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OPEC Secretary General Abdalla Salem El-Badri at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Participants in the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Exxon Mobil CEO Rex Tillerson speaks during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors near the Gazprom display at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Igor Sechin, left, president, chairman of the management board and deputy chairman of the board of directors at OJSC Rosneft, speaks during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Igor Sechin, president, chairman of the management board and deputy chairman of the board of directors at OJSC Rosneft, speaks during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Russian Deputy Prime Minister Arkady Dvorkovich, left, speaks during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Russian Deputy Prime Minister Arkady Dvorkovich speaks during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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The World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors near the ABB display at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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A visitor at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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A visitor at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Visitors at the World Petroleum Exhibition held at Crocus Expo International Exhibition Center.

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Russian Energy Minister Alexander Novak at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Russian Energy Minister Alexander Novak, center, at the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Participants in the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Igor Sechin, president, chairman of the management board and deputy chairman of the board of directors at OJSC Rosneft, during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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Igor Sechin, president, chairman of the management board and deputy chairman of the board of directors at OJSC Rosneft, during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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From left: Arkady Dvorkovich, Russian deputy prime minister, with Igor Sechin, president, chairman of the management board and deputy chairman of the board of directors at OJSC Rosneft, during the 21st World Petroleum Congress held at Crocus Expo International Exhibition Center.

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