
GES was built on a simple conviction: the right energy solution, done correctly, changes a building's future. We are a geothermal HVAC company, but more precisely, we are a problem-solving company that happens to specialize in geothermal and CNG. What separates us is operational. GES has access to drilling depth, capacity, and expertise that no standalone geothermal installer can match - which means we drill where other geothermal contractors physically cannot go. We design every system to spec, manage financing structures that make projects viable, and stay engaged long after installation through long-term service agreements. The people you meet at GES have been in this work long enough to tell the difference between a system designed to impress on paper and one that will still perform in 30 years. We choose the latter every time. It’s a standard we hold ourselves to on every project, with every client.
or more in utility savings - that is what geothermal systems consistently deliver, along with significantly lower long-term maintenance costs.
completed and counting - backed by more than 20 years of geothermal experience and a decade of CNG solutions across Oklahoma.
fuel cost reduction is achievable for Oklahoma fleets through CNG - and GES has the installations to prove it.
We believe in transparency. Here are the most common questions clients ask when they're getting to know us.
Our primary service area is Oklahoma, where we have the deepest relationships, most complete knowledge of subsurface conditions, and tightest operational infrastructure. We also have a growing presence in Texas and Arkansas, and we evaluate select out-of-state projects on a case-by-case basis.
We work with commercial property owners, school districts, county and government facilities, industrial operations, and transport fleets - any organization with significant HVAC or fuel cost exposure that would benefit from geothermal HVAC installation or CNG solutions.
We handle financial structuring as part of the project, not as an afterthought. This includes federal incentive identification, service agreement structuring (where GES owns and operates the system), and straightforward purchase options. Our goal is to make the right energy decision financially accessible.
GES was founded in 2012 with two rigs and seven employees. Over the past 13 years, we have grown into Oklahoma's only full-service geothermal provider, handling every phase of a project in-house from drilling to commissioning, while also completing more than 500 CNG vehicle conversions and installing over 50 CNG fueling stations across the state.
GES is built on people who take the work personally. Our team combines deep technical expertise with a relational approach that most energy companies never attempt. When you work with GES, you are working with people who stay in the relationship long after the job is done.







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