Oscar Esparza brings over 15 years of experience as an operations geologist specializing in well planning, well log analysis, subsurface mapping, and geosteering. His career includes leadership roles in multi-rig drilling programs and management of diverse subsurface investigations, where he’s known for driving operational precision and integrating geology with engineering execution.
A skilled communicator and collaborator, Oscar has worked extensively across multidisciplinary teams—bridging engineering, regulatory, and field operations—to deliver actionable insights and optimize drilling outcomes. His ability to translate complex geological and operational data into clear, strategic direction has made him a trusted partner across the energy sector.
In his role as Key Consultant at Source Geothermal, Oscar will support the company’s mission to advance closed-loop geothermal and next-generation subsurface technology—bringing a hands-on, data-driven approach to project planning, execution, and technical innovation.

