AFAIK, the Praxair and Air Liquide sites are bulk storage for hydrogen supply lines running through Texas. I'd imagine the ConocoPhilips site is similar. As for

AFAIK, the Praxair and Air Liquide sites are bulk storage for hydrogen supply lines running through Texas. I'd imagine the ConocoPhilips site is similar. As for what the hydrogen is used for? Probably for oil and gas extraction, though there's zero reason the technology couldn't be appropriated for storing and distributing green hydrogen.