Reliable Testing for the Energy Industry

GCO Labs, LLC strives to be your first choice in chemical analytical testing labs by providing 100% customer satisfaction.

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Owner Greg Oliver has over 25 years' experience in analytical testing. He has a Master's degree from Texas A&M University.

We offer quick turnaround and even after-hours emergency services. All phone calls are answered within 24 hours.

We're certified as a qualified laboratory by the State of Texas. Your satisfaction is guaranteed when you use GCO Labs, LLC.

We're a family-owned and

operated business. Greg Oliver, an M.S. graduate, began GCO Labs, LLC to serve the energy industry.