(L-R) Algeria's Minister of Energy and Mines Chakib Khelil,

(L-R) Algeria's Minister of Energy and Mines Chakib Khelil, Director of Petroleos Mexicanos (PEMEX) Jesus Reyes Heroles and Anatoly Yanovskiy, Deputy Minister of Industry and Energy of the Russian Federation, attend a plenary session during the 19th World Petroleum Congress in Madrid July 1, 2008. The World Petroleum Congress, which is held every three years, will end July 3.
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