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
46+
clients
31
technical papers
1.5M+
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 Reservoir and Completions Engineer

Janz Rondon
Senior Reservoir and Completions Engineer

Chris Ponners
Senior Reservoir and Completions Engineer

Ankush Singh
Senior Reservoir and Completions Engineer

Jaime Orozco
Senior Software Engineer

Chris Hewson
Senior Simulation Engineer

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

Technical barriers for deep closed-loop geothermal
This is the most exciting time in my lifetime for geothermal. There are many, many innovative things happening. To name a few – promising new approaches to Enhanced Geothermal Systems, geothermal projects in sedimentary and lower enthalpy formations, new approaches for geothermal exploration, lithium extraction from produced brines, geothermal energy storage, integrations with CO2 storage and capture, and new technologies for producing energy from hot water that is coproduced with oil and gas. However, this post is about a concept about which I remain skeptical – deep closed-loop heat exchangers (McClure, 2021). These designs are sometimes called ‘Advanced Geothermal Systems,’ AGS (Malek et al., 2022).

Modeling simulfracs and subsurface implications
Simulfrac’s are growing in popularity (see 2021 JPT article for when the trend was just gaining momentum). The idea is that one pumping crew can treat two wells simultaneously versus one well at a time. As such, a frac crew may zipper four wells at a time versus two. At ResFrac we are seeing an increase in simulfrac interest across our consulting and license customers. Simulfrac’ing wells within the ResFrac software is simple to set up without any complicated modifications – so this makes ResFrac an ideal platform to investigate the effects of simulfracs.

A New Approach for Interference Test Analysis: Quantifying the Degree of Production Impact
This blog post summarizes a new procedure for interpreting interference tests in shale. The full procedure and a detailed writeup are provided by Almasoodi et al. (2023). Interference tests are one of the most effective diagnostics for assessing communication between neighboring wells. This information is critical for optimizing completion design and well spacing.