Dr. Jeffrey Marc Yarus is a geoscientist, educator, and inventor whose five-decade career spans geology, geostatistics, data science, and environmental modeling. With extensive experience in both industry and academia, his work has centered on applying spatial data analysis to practical problems in subsurface modeling, resource development, and environmental systems.
He earned a B.A. in Geology from the College of Wooster in Ohio, studied at the University of Durham in England, and received both his M.S. and Ph.D. in Mathematical Geology from the University of South Carolina. His early research, which applied Fourier analysis to quartz grain shapes, sparked a lifelong focus on quantitative approaches to geologic systems.
Dr. Yarus began his industry career at Amoco Production Company, later holding senior technical roles at Marathon Oil and GeoGraphix, and executive positions at Diversified Resources Ltd. and Roxar (formerly Smedvig Technologies). He completed his industry work at Halliburton’s Landmark Software Services division as a Senior Technology Fellow—one of only ten in a global workforce of 55,000. In that role, he reported to the executive senior leadership and helped guide the development of one of the industry’s most widely used geoscience modeling platforms, incorporating geostatistics, uncertainty analysis, and data-driven workflows into standard practice.
Since 1983, Dr. Yarus has taught geostatistics and spatial modeling as an adjunct professor at the University of Colorado, Denver, Colorado School of Mines, and the University of Houston. Since 2020, he has served as a Research Professor at Case Western Reserve University (CWRU) in the Department of Materials Science and Engineering, where he works with students and faculty on applied problems involving environmental simulation, geospatial modeling, and materials degradation, using current methods in machine learning, data science, and informatics.
His recent work has focused on nutrient transport in U.S. watersheds—specifically how runoff from agriculture and wastewater systems contributes to algal blooms, hypoxic zones, and broader environmental health concerns. These projects integrate real-time data and spatial modeling to inform decisions related to land use, water quality, and climate adaptation.
Dr. Yarus is also a senior tutor with Tetra Tech (through its RPS Energy Training division), where he has provided advanced instruction to geoscientists and engineers for more than 20 years. His teaching emphasizes clarity, consistency, and applicability—linking theory to practice using modern analytical tools.
He has contributed to several major publications, including the Stochastic Modeling and Geostatistics series from the American Association of Petroleum Geologists (AAPG), serving as Principal Editor of Volume I and Senior Editor of Volumes II and III. The first two volumes address geostatistical principles and case studies; Volume III expands the discussion to Geographic Information Systems (GIS) in spatial modeling. He is also lead author of the chapter “Geoinformatics,” published in the Encyclopedia of Mathematical Geosciences (Springer, 2023), which explores how geoinformatic systems support data integration, visualization, and decision-making in subsurface applications.
In June 2025, he and his students released three new courses on Coursera, broadening access to training in geoscience, machine learning, and spatial data methods.
His research collaborations—often involving students, faculty, and external partners—have been supported by the U.S. Department of Energy, the National Science Foundation, and others, with projects spanning geothermal systems, environmental monitoring, fertilizer optimization, and materials reliability. In 2023, he participated in the DOE’s CarbonX Virtual Series webinar The Future of Carbon: Conversion Engineering, contributing to ongoing national discussions on carbon capture and utilization.
He will be profiled in Time Magazine (September 2025) as part of Marquis Who’s Who, recognizing his lifetime contributions to science and innovation.
Key Areas of Focus
- Applied Expertise:
Throughout his career, Dr. Yarus has worked at the intersection of geology, geostatistics, data science, and informatics, combining technical rigor with real-world application.
- Industry and Academic Leadership:
From senior roles at Halliburton to his current faculty position at CWRU, he has developed, taught, and implemented tools that are now widely used across the geoscience community.
- Collaborative Research:
His interdisciplinary work spans energy, environmental, and materials science domains, often in partnership with students, colleagues, and sponsoring agencies.
- Education and Mentorship:
With over four decades of experience, he continues to teach, mentor, and support professionals across a range of scientific and engineering disciplines.
