About us
ResFrac is used by 35+ 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 35+ 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
35+
customers
300+
training course attendees in 2020
15
technical papers
500K+
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

Dave Ratcliff
Director of User Success

Rohan Irvin
Senior Consulting Engineer

Janz Rondon
Senior Consulting Engineer

Sama Morsy
Senior Consulting Engineer

Chris Ponners
Consulting Engineer

Ankush Singh
Senior Consulting Petroleum Engineer

Jaime Orozco
Senior Software Engineer

Chris Hewson
Senior Simulation Engineer

Peter Gill
Financial Controller

Tristen Lawrence
Administrative and Marketing Coordinator

Joe Frantz
Senior Executive Advisor

Mark Zoback
Senior Executive Advisor

Our strategic partner
ResFrac is backed by the Altira Group. With more than 20 years of experience in supporting entrepreneurs, Altira provides venture capital funding for next generation technology companies that meet the complex challenges of today’s oil and gas industry.
Recent content from the ResFrac blog

Automated History Matching and Economic Optimization of an Eagle Ford Refrac
In this blog post, we review a refracturing and economic optimization case study. The model and history match are loosely based on “SPE Data Repository Well #1,” a publicly available refracturing and production dataset from the Eagle Ford shale. This post extends the analysis that we presented at a recent SPE workshop, “What New for PTA and RTA”.

ResFrac Retreat in Colorado
For the first time in more than two years, the entire (almost!) ResFrac team gathered in Denver. We mixed education (thank you to our friends at Liberty Services for showing us the nuts and bolts of frac’ing)…… with fun.

Commentary on Four New DFIT Papers: (a) Direct In-Situ Measurements of Fracture Opening/Closing from the EGS Collab Project; (b) Comparison of Stress Measurement Techniques from the Bedretto Project; (c) a Statistical Summary of 62 DFITs Interpretations Across Nine Shale Plays; and (d) A Different Perspective: An Article Advocating the Use of the Tangent Method
This post provides commentary on recent four papers on diagnostic fracture injection testing (DFIT). The first paper uses in-situ deformation measurements to directly observe fractures opening and closing during fracture injection-falloff tests (Guglielmi et al., 2022). The second compares various stress measurement techniques in a series of fracture/injection tests from the Bedretto project (Bröker and Ma, 2022). The third statistically reviews results from applying the interpretation procedure from McClure et al. (2019) to 62 DFITs across nine different shale plays (McClure et al., 2022). The fourth is an op-ed written in JPT (Journal of Petroleum Technology) by an advocate of the tangent method for estimating DFIT closure stress (Buijs, 2021; 2022). This article presupposes that the reader already has familiarity with these topics. If you would like more background, please refer to McClure et al. (2019).