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Armando Zamora (center) greets Alfredo Guzmán (lef...
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Guzmán (left) and Lorenz greet students wearing tr...
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Stephen Hermes, Remora Energy, (left) joins Lorenz...
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Javier Gutierrez, President (center), welcomes the...
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A meeting with Hernán Martínez, Colombian Minister...
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Lorenz joins (L-R) Navarette, Ecopetrol; Zamora, A...