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Mr. Calderon Berti is a Venezuelan geologist, petroleum engineer, former president of PDVSA (Venezuela’s state-owned petroleum company), and the country’s former Minister of Energy and Mines, as well as former Minister, he is also a former OPEC president. His undergraduate degree was from the Central University of Venezuela, and he has a Master’s in petroleum engineering from the University of Tulsa in Tulsa, Oklahoma. In 2003, he and other former PDVSA petroleum executives founded the Colombian company, Vetra Energia, S.L.