“A dream. It’s perfect”: Helium discovery in northern Minnesota may be biggest ever in North America::For a century, the U.S. Government-owned the largest helium reserve in the country, but the biggest exporters now are in Russia, Qatar and Tanzania. With this new discovery, Minnesota could be joining that list.
Tommy’s dad didn’t steal tank of 7N helium, but it did rolled off the same facility using the same process, main impurity being air (considering it’s a rather minor use, maybe balloon gas is just what is left after cleaning or purging empty helium tanks of higher grade. so it’s maybe not a massive loss. recycling helium within cryogenics and MRI would provide more benefit)