(WO) – Eclipse Energy has completed a field pilot in the Permian basin with Weatherford and a major West Texas operator. In the pilot, hydrogen generated inside a mature oil reservoir through biotechnology stimulation migrated through the subsurface and was produced at an offset well. Eclipse said it is the first time stimulated subsurface hydrogen has been shown to move between wells and the first time it has been gathered through existing commercial gas infrastructure into a sales stream.
Over 30 days, the pilot produced hydrogen from multiple wells in a naturally fractured carbonate reservoir. The produced gas was gathered through existing natural gas infrastructure, processed at a central facility and sold alongside natural gas. Eclipse said the hydrogen rate in the produced stream was more than four times that of its first field trial, conducted in a light-oil sandstone reservoir in California in June 2025.
“The first demonstration showed that we could stimulate a mature reservoir to produce hydrogen,” said Prabhdeep Singh Sekhon, CEO of Eclipse Energy. “This second demonstration shows that the technology can operate in a fundamentally different and more challenging reservoir, that hydrogen can migrate through the subsurface between wells, and that the resulting gas can move through infrastructure that already exists.”
Eclipse’s approach aims to turn reservoirs nearing the end of their productive lives into new energy sources, using existing wells, gathering systems and other oilfield infrastructure rather than building new production systems.
Weatherford, which invested in Eclipse as part of a partnership announced in December 2025, provided field execution and operational support for the pilot. “The ability to generate hydrogen in the subsurface, observe its movement between wells, and bring it into existing commercial infrastructure is a remarkable technical and commercial milestone,” said Girish Saligram, president and CEO of Weatherford.
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