Proton Green makes first helium sale from Arizona-based extraction plant


Helium and beverage grade carbon dioxide (CO2) specialist Proton Green has made its first sale of helium produced from its St. Johns Field Phase 1 helium extraction plant in Arizona.

Located in Apache County, the St Johns Field is believed to be one of the largest helium and CO2 reservoirs in North America, with an estimated 33 billion cubic feet of helium and 517 billion tonnes of CO2 in accessible reservoirs.

Production at Proton Green’s Phase 1 helium extraction plant started in July 2023.

Steve Looper, CEO of Proton Green, described the sale with a fixed-price offtake customer as the first commercialisation milestone for the company.

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