About us
ResFrac is used by 75+ leading E&P companies
Built on science-based decision-making
Operators are engaged in a process of continuous improvement – with a relentless focus on maximizing free cash flow. We apply cutting-edge technology and a rigorous workflow to accelerate the improvement cycle.
A highly regarded colleague once said: “We reserve the right to get smarter.” Our commitment is to embody this spirit to the best of our ability – whether that means continually evolving our software and implementing the latest findings from academia and literature, or approaching a collaboration with scientific curiosity and excitement.
Recent projects such as HFTS1, HFTS2, the ConocoPhillips core-through in the Eagle Ford, and MSEEL have transformed the industry’s understanding of shale fracturing, challenging conventional wisdom and unlocking new opportunities. Downhole data collection has never been better. Fiber in injection and offset wells, downhole imaging, sealed pressure monitoring, pressure observation wells, among many others, are giving us an unprecedented look at subsurface processes in shale. By working with a diversity of companies across all major shale plays, we’ve built a broad perspective and understand the commonalities and differences. This deep understanding – rooted in the groundbreaking work happening in the industry – enables subsurface engineering to be performed more accurately and drive more value than ever before.
Collaboration
We are fortunate to work with some of the most outstanding people in our industry, and with some of the most innovative companies. We work together to advance the science, while keeping the focus on solving practical problems that impact the bottom line.
Continuous improvement
Everyone at ResFrac brings a growth mindset to their work, helping operators and the broader community solve problems and improve operational efficiencies. We apply that growth mindset to ourselves, our company, our clients, and the profession as a whole.
Making a tangible impact
We believe in the dignity of an honest, hard day’s work. Every day, we strive to make a positive impact on our little corner of the world.
ResFrac is used by 75+ leading E&P companies
Operators of all sizes across the globe choose ResFrac for modeling. We are being used in every major shale play across North and South America.
ResFrac by the numbers
since launching in 2018
75+
clients
81+
technical papers
2.4M+
hours of simulation usage per year
Meet the ResFrac team
Mark McClure
Co-Founder and Chief Executive Officer
Charles A. Kang
Co-Founder and Chief Technology Officer
Garrett Fowler
Chief Operating Officer
Somasekhar Reddy
Chief Information Officer
Egor Dontsov
Chief Scientist
Sheldon Harbinson
Senior Vice President of Sales
Munhong (Robin) Hui
Senior Research Scientist
Chris Ponners
Reservoir and Completions User Success Lead
Sama Morsy
Reservoir and Completions Technical Team Lead
Ankush Singh
Reservoir and Completions Technical Team Lead
Rohan Irvin
Australasia Technical Team Lead
Julian McDowell
Geothermal Team Lead
Lio Ribeiro
Growth Team Lead
Agustin Garbino
Senior Consulting Engineer
Sadeq Shahamat
Senior Reservoir and Completions Engineer
Ashton Bretzer
Senior Reservoir and Completions Engineer
Jack Blears
Senior Reservoir and Completions Engineer
Matteo Marongiu Porcu
Senior Reservoir and Completions Engineer
Aileen Zebrowski
Reservoir and Completions Engineer
Daniela Arias Ortiz
Reservoir and Completions Engineer
Jorge Alejandro Oniszczuk
Reservoir and Completions Engineer
Chase Griffin
Reservoir and Completions Engineer
Leonardo Cruz
Consulting Engineer
Jaime Orozco
Senior Software Engineer
Chris Hewson
Senior Simulation Engineer
Robert Roth
Senior Software Engineer
Carlo Peruzzo
Senior Software Engineer
Eric Schulz
Senior Software Engineer
Elizaveta Gordeliy
Senior Software Engineer
Danial Zeinabady
Senior Software Developer
Akshay Ubale
Senior DevOps Engineer
Abi Olatunji
Senior DevOps Engineer
Michael Nole
Senior Reservoir Simulation Engineer
Jiacheng Wang
Senior Simulation Engineer
Kevin Eslick
Software Engineer
Jiaqi Du
Reservoir Simulation Engineer
Tristen Lawrence
Operations Manager
Jubilee McGuire
Administrative and Logistics Coordinator
Joe Frantz
Senior Executive Advisor
Mark Zoback
Senior Executive Advisor
Craig Cipolla
Senior Technical Fellow
Thomas Finkbeiner
Senior Technical Advisor
Our strategic partner
ResFrac is backed by Banneker Partners. A growth-oriented private equity firm, Banneker Partners invests in proven software and technology companies, bringing deep operational expertise and a long-term partnership to help businesses scale.
Recent content from the ResFrac blog
The influence of well configuration on water loss in Enhanced Geothermal Systems
Recently, ‘water loss’ has been a hot topic of discussion for EGS. Fervo reported that they have been producing only 70% of the fluid volumes that they have been injecting at their Project Red. The FORGE project reported a roughly 10% water loss rate. Because projects will have finite water rights, these results have led to concern that growth of EGS will be limited by excessive water consumption. This is a valid concern, and water availability is a legitimate factor in site-selection and project engineering. However, I believe that the problem has been overstated.
2026 ResFrac Annual Symposium Recap
On June 25, 2026, we got the ResFrac community together both in-person at the ExxonMobil campus in Spring, Texas, and virtually around the globe for our Annual Symposium. With our community growing as fast as it is, the energy in the room was absolutely buzzing. We had a jam-packed day of operator case studies, deep-dive technical sessions, and some incredible geomechanical insights from industry legends.
FracTest – An Online Tool for DFIT Interpretation
This week, we are releasing FracTest, a web-based application for interpretation of diagnostic fracture injection tests (DFITs). FracTest is available at resapps.resfrac.com, alongside our other two ResApps, StageOpt and IntTest. DFITs are small-volume fracture injection tests used to estimate stress, pore pressure, and permeability. These quantities form the foundation of the fracture and reservoir engineering work that we do in ResFrac, and so we view DFIT interpretation as one of the most important parts of our workflow.
Work for ResFrac
Interested in joining the ResFrac team? Browse our open positions below and submit your application directly through our application form.