Jeffrey Yarus, PhD, is a Halliburton Technology Fellow for Landmark, with over 36 years of industry experience. His specific areas of thought leadership include earth modeling and geostatistics, and he is the technical lead and senior manager of DecisionSpace® Earth Modeling and Reservoir Modeling software. Early in his career, Dr. Yarus worked with major oil companies and technology service companies, including Amoco, Marathon, Beicip-Franlab and Roxar. In 2001, Dr. Yarus was a founding partner in a research and consulting company, Quantitative Geosciences (QGSI), specializing in applied earth modeling. In 2006, Dr. Yarus, along with QGSI employees, joined Landmark Graphics Corp. to build an earth modeling software product, which is now a core module on the DecisionSpace® Geosciences suite. An acknowledged lecturer and author in the industry, Dr. Yarus earned the distinction of being a 13-year adjunct faculty member for the University of Houston’s Department of Petroleum Engineering, and a senior contributing editor of the Stochastic Modeling volumes in the American Association of Petroleum Geologists (AAPG) Computer Applications series. He was recently featured in an industry publication for his leading-edge teaching style. In his upper-level course, University of Houston engineering students learn how to generate earth models and design well plans by using actual subsurface data and powerful software accessed through a cloud and typically found only at oil and gas companies. Dr. Yarus has served as a chair for a number of AAPG committees, including the Computer Applications, Publications, and Reservoir Development committees. He has authored many papers and abstracts on reservoir modeling and geostatistics, including AAPG volumes on stochastic modeling and geostatistics, the chapter on reservoir characterization and geostatistics, and the recent Society of Petroleum Engineers’ Petroleum Engineering Handbook, volume 6. Dr. Yarus earned his PhD and master’s degree in geology from the University of South Carolina, and his bachelor’s degree in geology from the College of Wooster in Ohio.