Banneker’s ResFrac Buy Signals PE’s Bet on Subsurface Modeling

April 23, 2026

Hart Energy

By Velda Addison

Reservoir modeler ResFrac has been acquired by private equity firm Banneker Partners, a move that positions the software specialist for growth in its core market of unconventionals and beyond.

Private equity’s move into reservoir modeling reflects a shift in the industry. As technical complexity intensify, physics-based optimization is replacing trial-and-error field practices. Investors see software as a scalable solution.

Reservoir engineering workflows are also evolving, pushing operators toward integrated, simulation-driven decision-making that combines diagnostics and modeling to maximize recovery. For investors, it may signal subsurface software is becoming a more central part of field development.

The California-based subsurface simulation specialist focuses on optimizing hydraulic fracturing operations for oil and gas companies along with geothermal producers. Its platform enables operators to model a well’s full lifecycle—from fracking through production—in a single, continuous simulation. The deal, involving a lean team of roughly 30 employees, is expected to accelerate hiring and product development.

“We’re going to be both broader and deeper in the future,” Mark McClure, co-founder and CEO of ResFrac, told Hart Energy.

Read the rest of the article from Hart Energy here.

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