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
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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02Sep 25

Green Energy Export Day 2025

Metharc attended the Green Energy Export Day 2025, held in Copenhagen on 27th Aug. A huge thank you to Danish Industry for hosting this inspiring day, filled with innovators, corporations (from SMEs to large), and impactful conversations. This year was well attended, with workshops on Wind Energy, District Heating, Energy Efficiency and GreenHydrogen, with many thoughtful presentations and interesting ideas…

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17Jun 25

Techno-Economic Paper Published on Biogas-Geothermal Coupling

Our Techno-Economic Analysis (TEA) paper was published online in the Sustainable Energy & Fuels Journal of the Royal Society of Chemistry. The study introduces Metharc's first-of-a-kind process for producing hydrogen directly from injected biogas within geothermal gas wells, capturing carbon downhole as a free and sustainable bi-product. Our wellbore reformation process utilizes a downhole tool that converts the methane content…

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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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