The Jayhawk Helium Plant is one of two along the Federal Helium Pipeline that are operated by Praxair, Inc. It is located east of the town of Ulysses, on a site shared with a gas plant. The gas plant was originally built by Amoco in 1998, replacing a smaller one on site. It was later owned by BP, and now is owned by Linn Energy. It generates natural gas, along with some crude helium (which is around 70% helium, 30% other gas). Linn Energy bought this plant, and another down the road, along with 2,400 wells in the surrounding gas fields, for $1.2 billion in 2012. The Jayhawk Helium Plant has three production units, and has been operating since 1968. Praxair has operated it for a few decades. Praxair, already one of the largest industrial gas companies in the world, merged with one of its rivals, Linde, in 2018.