Metharc's novel process enables the rapid and cost-efficient scale-up of low-carbon hydrogen production from abundant global natural gas and biogas resources using a downhole tool that converts methane to clean hydrogen deep in the wellbore, with simultaneous at-source capture of carbon.
Metharc helps Natural Gas, Geothermal and Biogas companies become hydrogen production and carbon capture leaders, taking advantage of their existing licenses with fewer permitting barriers, less complex value chains and proven logistics.

Stuart Gillick

CEO

Founder and inventor of the Metharc process and technology, with a Petroleum Engineering Masters degree and over 30 years of senior-level technical and management experience working internationally in the upstream oil and gas sector.

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  • Company founder and inventor of the Metharc process and technology.
  • 30+ years senior technical and management experience working internationally in the upstream oil and gas sector.
  • Management and supervision of well construction projects for Maersk Oil & Gas, Repsol, Premier Oil, Petro-Canada, ConocoPhillips, RashPetCo & Schlumberger IPM.
  • Well Engineering for Maersk Oil & Gas, Statoil, Exxon, Texaco & Amoco.
  • MSc Petroleum Engineering (Imperial College, London, UK), BSc Fuel & Energy Engineering (University of Leeds, UK).
Recent News
08Feb 26

Conference Paper Published on Biogas Reformation in Geothermal Wells

Biogas Reformation in Geothermal Wells.   Our conference paper delivered at the German Geothermal Congress, Frankfurt Nov 2025, has now been published online on the Zenodo website. The paper discusses Hydrogen energy and geological carbon retention using a biogas-geothermal wellbore reformation tool. Enhancing overall resource efficiency contributes significantly to energy security. Biogas serves as a critical energy asset within waste…

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25Nov 25

Der Geothermiekongress 2025

The German Geothermal Conference 2025. Metharc presented our Geothermal-Biogas coupling solution at The German Geothermal Conference 2025 (18th to 20th Nov in Frankfurt). Not surprisingly, as the biggest annual Geothermal conference in Germany it was well attended. Many thanks to Der Geothermiekongress for organising a well coordinated, educational and forward-looking conference. The presenters discussed a variety of topics, ranging from…

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18Sep 25

DI Green Gas Days 2025

Metharc presented our solution for the future of Biogas at the Green Gas Days 2025 Conference (16th & 17th Sept in Fredericia, Denmark). This conference was highly attended, with 46 presenters shedding light on green gases from all relevant perspectives – political, regulatory, technical, safety and international. Many thanks to Danish Industry (DI Energi), Biogas Danmark and IDA Energi for…

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Metharc Deep Dives

Economics

Economics

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Biogas-Geothermal

Biogas-Geothermal

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Decarbonisation Chemistry

Decarbonisation Chemistry

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