Angola's Oil Minister and OPEC President Vasconcelos and OPEC Secretary General Badri
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Angola's Oil Minister and OPEC President Jose Maria Botelho de Vasconcelos (L) and OPEC Secretary General Abdullah al-Badri listen during a news conference in the Organization of the Petroleum Exporting Countries (OPEC) headquarters following a meeting of OPEC oil ministers in Vienna May 28, 2009 file photo.