About

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Garrett Fowler

Chief Operating Officer

Garrett Fowler is Chief Operating Officer at ResFrac, responsible for overseeing client engagement, professional services, and software licensing.

ResFrac is a software company whose primary product is a fully-coupled hydraulic fracture, reservoir, and geomechanics simulator. Garrett has led modeling studies in every major shale basin, as well as geothermal and conventional projects. Prior to ResFrac, Garrett was a reservoir engineer at OXY and Tachyus, working on CO2 EOR, waterfloods, steamfloods, and cyclic steam injection.

Garrett attended Stanford University, where he graduated with distinction, receiving a Master of Science degree in petroleum engineering and a Bachelor of Science in energy resources engineering. Garrett was awarded a 2022 SPE Regional Completions Optimization and Technology Award, a 2023-2024 SPE Distinguished Lecturer, and authored or co-authored 21 technical papers. He is an Eagle Scout, multiple-time Ironman finisher, and a search and rescue diver.

Garrett’s professional publications include:

Garrett's posts

Production impact of horizontal fractures

At the 2025 SPE International Hydraulic Fracturing Technology Conference, we (Dontsov, Zoback, McClure, and Fowler) presented “Hydraulic Fracture Propagation Along Bedding Planes Might Be More Prevalent Than We Think” (SPE-226637). The paper reviewed case studies with evidence of horizontal or bedding plane fractures from microseismic, fiber optics, core observations, and casing deformation.

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Testing the new Kryvenko model for proppant washout

What controls proppant placement during hydraulic fracturing? As described in Chapter 8 from McClure et al. (2025), ResFrac incorporates a variety of physical processes – viscous drag, gravitational settling, hindered settling, clustered settling, bed slumping, and more. In addition, ResFrac accounts for the complex physics associated with proppant flowing out of the wellbore (Dontsov, 2023; Ponners et al., 2025).

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