About

Angel joined the oil industry in 1988 with the Basin Analysis group at Petróleos de Venezuela (PDVSA) after teaching five and half years at Universidad Central de Venezuela. At PDVSA, he was a noted lecturer regarding "Petroleum systems as an exploration tool" at their “School for Formation of Interpreters in Exploration”. In 1999 he enrolled in the Ph.D. program and the Petroleum Systems & Geochemistry Institute of the University of Houston. In 2004, Mr. Callejon joined Platte River Associates as Senior Geoscientist to participate in quantification of geological/geochemical processes and risk analysis projects,

Angel accepted a research position with ExxonMobil in 2006. At Exxon, Angel worked with both Upstream Research and ExxonMobil Exploration. For the New Business Development team of the Regional Exploration Group, he focused on interpretation and integration of geological and geochemical data for oil exploration projects within a Basin Genetics framework.

Angel joined Statoil exploration in 2007, where he was instrumental in exploration’s first, regional, 3D basin model of the Gulf of Mexico. This model was used to reduce prospect-scale, exploration risk posed by oil generation, migration, potential biodegradation, and reservoir degradation. In 2013, Angel moved to the Technology Excellence group at Statoil, where he used basin modeling and geochemistry to predict GOR and PVT properties in the Eagle Ford Play. While in this role, Angel developed a chemo-stratigraphic framework for the Austin Chalk, Eagle Ford, and Buda Formations to help characterize and identify sweet spots within the unconventional plays.

Angel is well published, a reviewer for the Journal of Marine and Petroleum Geology and AAPG Bulletin, and has lectured on the topic of Petroleum Systems at the University of Houston for the past 15 years.