We are Ozarc Gas. Founded in 1945, Ozarc Gas is Missouri's longest-operating, independent provider of industrial gases and welding related equipment. Still privately-held today, Ozarc brings welding, medical, and specialty gas application solutions to market. From west-central Illinois, to St. Louis and along both sides of "the" River to the Missouri-Kentucky border - to northern Arkansas – Ozarc Gas has six strategically located operations from which to serve.