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This article was shared by an industrial chemist friend of mine (chemical engineer), who is also part of our nuclear group. I think it does an excellent job separating the hype and fiction from the reality of the geologic hydrogen space and providing some much-needed insight on those realities.
h2sciencecoalition.com
A solid paragraph that leads the rest of the article:
Despite recent high-profile findings from France to Albania, the world’s only documented hydrogen producer well is located in the village of Bourakébougou, Mali.
It produces almost pure hydrogen from a shallow reservoir layer at a very low rate of about 5 to 50 tonnes per year. This is equivalent to 0.3 to 3 barrels of oil per day – a power output less than a tenth of a single medium-sized wind turbine [2].
With the exception of Mali, no findings of geologic hydrogen to date have flow tests measuring the rate at which a well can extract hydrogen from underground and thus demonstrating evidence that hydrogen can be produced commercially.
Only the finding in Mali can be firmly considered a “discovery”, while all others are speculative in nature: natural “seeps” where some hydrogen has been detected to leak out from the earth’s subsurface, or “shows” where some traces of hydrogen have been observed during the drilling of a well. Neither of these terms indicate evidence of producible hydrogen.

Everything you need to know about natural or geologic hydrogen - Hydrogen Science Coalition
As some herald a new “gold rush”, here are the facts key to understanding natural or geologic hydrogen's clean energy potential.

A solid paragraph that leads the rest of the article:
Despite recent high-profile findings from France to Albania, the world’s only documented hydrogen producer well is located in the village of Bourakébougou, Mali.
It produces almost pure hydrogen from a shallow reservoir layer at a very low rate of about 5 to 50 tonnes per year. This is equivalent to 0.3 to 3 barrels of oil per day – a power output less than a tenth of a single medium-sized wind turbine [2].
With the exception of Mali, no findings of geologic hydrogen to date have flow tests measuring the rate at which a well can extract hydrogen from underground and thus demonstrating evidence that hydrogen can be produced commercially.
Only the finding in Mali can be firmly considered a “discovery”, while all others are speculative in nature: natural “seeps” where some hydrogen has been detected to leak out from the earth’s subsurface, or “shows” where some traces of hydrogen have been observed during the drilling of a well. Neither of these terms indicate evidence of producible hydrogen.