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About the Company

The team behind the revolution

GeoKiln consists of a team with 160+ years of experience from the oil and gas industry, bringing their hands-on expertise with subsurface heating technologies from lab to full commercial scale.

Founded2024
HeadquartersHouston, TX
Team size8
StagePilot → Commercial by 2030
Our Origin

Why we started
GeoKiln.

GeoKiln grew out of a simple conviction: that the oil and gas industry, for all its challenges, already held the key to clean hydrogen. Our founders had spent careers there. They knew the geology. They decided to use it differently.

The move for our founders happened early in 2023, after a long conversation about why every "green" hydrogen project we'd seen was either unbankable, unbuildable, or both. The question that came out of that night was simple: if the Earth already provides the heat and the vessel, why are we building those above ground?

Eighteen months later we had a lab proof, a patent filing, and a company.

Principles

What we believe.

01

The energy transition needs to be redirected, not reinvented.

A century of subsurface expertise already exists. Our job is to point it at a new geology, not to rebuild the industry from scratch.

Industry · Redirected
02

Cost is the only currency the market trades in.

Clean hydrogen has to win on price, not virtue. We benchmark against the dirtiest hydrogen on the market — and we plan to beat it.

Win on price · Not policy
03

Predictable is a feature.

Standard rigs, standard crews, standard logistics. The novelty is in the chemistry, not the spectacle. Solving for delivering hydrogen at scale — and scale is the only thing that moves the climate needle.

Familiar hardware · Novel chemistry
04

The best ideas come from the unlikeliest angle.

Subsurface hydrogen doesn't yield to one type of thinker. We hire for the perspective the others don't have — geology, drilling, chemistry, software, the field — and we make room for people to disagree. The breakthroughs are usually quiet, and usually come from whoever wasn't supposed to be talking.

Many minds · Same rock
The Team

Eight people. 160+ years of energy leadership and innovation.

01 Photo Alexei Tcherniak

Alexei Tcherniak, PhD.

Founder & CEO

  • Led subsurface heating R&D at Shell
  • Delivered $1B+ capital projects

Shell · Rice University

02 Photo Lorna Ortiz

Lorna Ortiz, PhD.

Founder & CCO

  • Partnerships & commercialization leader
  • Drives scale-up and business development

Shell · University of South Carolina

03 Photo Natalia Branch

Natalia Branch, MBA

CFO

  • Global finance across Shell assets
  • Led $1B+ energy portfolios

Shell · Ambitney Group · Univ. of New Orleans

04 Photo Ernesto Fonseca

Ernesto Fonseca, MsC

COO

  • Subsurface field ops — US & Canada
  • Large-scale heater deployments

Shell · Curtin University

05 Photo Robert Dombrowski

Robert Dombrowski, PhD.

Director of Subsurface

  • Reservoir modeling & thermal stimulation
  • Immature shales & heavy oils

ExxonMobil · Shell · Michigan State

06 Photo Katie O'Shea

Katie O'Shea, MsC

VP Market Development

  • US DOE H2 Hubs Program Manager
  • Major projects in Canada, Nigeria, PNG

ExxonMobil · US DOE · Northwestern

07 Photo Andrew Murphy

Andrew Murphy, PhD., FLS

Managing Director Europe

  • Hydrogen strategy & policy
  • Innovation & business transformation

Shell · BP

08 Photo Katia Pronina

Katia Pronina, PhD.

Geoscience Advisor

  • 20+ basins worldwide — geology & geophysics
  • Challenges the data, leans into uncertainty

Shell · Rice University

Get in Touch

If any of this sounds like a problem worth working on, talk to us.

Contact us