Petroleum Geologist IV studies and examines variations in rock formations and mineral samples to identify new gas and oil deposits. Analyzes the integrity of wells to determine feasibility of drilling. Being a Petroleum Geologist IV estimates depth, quality and vastness of deposits. Requires a bachelor's degree. Additionally, Petroleum Geologist IV typically reports to a manager or head of a unit/department. Petroleum Geologist IV is a specialist on complex technical and business matters. Work is highly independent. May assume a team lead role for the work group. To be a Petroleum Geologist IV typically requires 7+ years of related experience.