Meet the people behind Mazzard Energy
Complementary expertise in subsurface, drilling, project delivery, and digital energy.
Gibran Cerezo
Founder & Principal Consultant
Gibran Cerezo is a petroleum geologist and the founder of Mazzard Energy, bringing over 20 years of international experience across subsurface interpretation, reservoir characterization, and enterprise geoscience software. His background spans technical consulting for national and international operators, technical sales leadership in enterprise software, and a postgraduate specialization in data science and business analytics. At Mazzard Energy, he leads engagements that connect subsurface technical depth with digital transformation and data-driven decision-making for E&P operators and energy technology companies.
20+ years across PDVSA, Halliburton, and Aspen Technology in Venezuela, Brazil, Argentina, and the U.S.
Bridges subsurface technical depth with commercial and digital strategy, helping teams turn complex geoscience data into confident decisions.
Dorys Mayo
Senior Drilling Engineer & Project Manager
Dorys Mayo is a petroleum engineer with over 20 years of international drilling experience across Venezuela, Brazil, and the United States. She specializes in directional, horizontal, and multilateral well design, and pairs that field-tested drilling background with modern project management practice — Agile and Scrum delivery, KPI tracking, and cross-functional coordination built through recent project analyst and Product Owner work. At Mazzard Energy, she anchors the drilling and well delivery advisory practice, bringing structured project controls to technical engagements.
20+ years across PDVSA, Halliburton, and multinational project delivery in Venezuela, Brazil, and the U.S.
Brings structured drilling engineering discipline and modern project controls together, helping technical and management teams stay aligned from planning to delivery.
Company and employer names above reflect prior professional experience. They are not current clients, partners, or endorsers of Mazzard Energy.