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Geostock Sandia offers a comprehensive range of services in Underground Storage of liquid, liquefied and gaseous hydrocarbons, as well as industrial waste disposal.


  • Reservoir and Petroleum Engineering Design
  • Salt, Porous Media and Mined Storage expertise
  • Geological Consulting Services
  • Permitting, Drilling, Workover, Simulation & Testing
  • Operation and Maintenance
  • CO2 Sequestration


July 2015: Geostock North America, Inc. acquired 100% stake in Sandia Technologies, LLC and became the sole owner of the membership interests in both Sandia Technologies, LLC and Geostock US, LLC.

August 2015: Bruno PAUL-DAUPHIN appointed Vice President Operation at Geostock North America, Inc.

December 2015: Geostock North America, Inc. determined that it was in the best interests of both the company and its clients to consolidate all on-going business operations in the United States under a single company, Geostock Sandia, LLC. This consolidation, effective on January 1st, 2016, will allow Geostock Sandia to provide comprehensive and innovative solutions to meet client needs in the upcoming years.  It will ultimately result in many cost efficiencies which will all be a direct benefit to clients.

January 1st, 2016: Donald STEHLE appointed President & CEO of Geostock Sandia, LLC.

Read the Press Release

January 11-12h, 2016: Geostock Sandia will be at Platts 14th Annual Gas Storage Outlook in Houston


Donald STEHLE - President & CEO


Our offices:


8860 Fallbrook Drive
Houston, TX 770664     
Office: +1(832) 286-0471
Fax: +1 (832) 286-0477