The Specialist in Underground Energy Storage and Subsurface Injection

World-class services in underground storage, subsurface injection, and associated surface facilities that go further to solve your problems.

Geostock Sandia.

Bringing the best together to provide superior underground storage and subsurface injection services in North America and Mexico.

A preeminent supplier of underground storage and subsurface injection services, Geostock Sandia combines industry leadership in the design, construction, operation, and maintenance of underground storage facilities with proven, innovative permitting, engineering, and field services in subsurface injection of liquid and gaseous fluids.

We work with you, for you.
We understand that each challenge is unique and work closely with our clients to develop the right solution for their specific project. As a company with owner-operator roots, we also share your need to solve geologic and energy infrastructure problems safely, efficiently, and cost effectively. To that point, we focus on solving challenges using a phased project structure that reduces cost exposure, mitigates risk and creates lasting value.

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in underground storage


in subsurface injection

0 +

years of engineering experience

We've got the experience to get the job done right.

An international engineering company specialised in underground storage solutions for energies, Geostock has gradually established global leadership in underground energy storage.

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Injection and storage services

Services as comprehensive as our expertise. Safety above all.

Client centric and solution oriented, we offer a comprehensive range of technical services, expertly delivered for our clients. Around the world, wherever we work, we also put our proactive HSE philosophy to work. We believe that zero injuries is an attainable goal and are faithful to our Safety First culture, every day, on every project.

Beyond underground expertise, our corporate structure brings significant scale to the scope of services we offer, while retaining the focus of a smaller company.


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