Hirschman Oil Supply has been family owned and operated since 1934. For over 75 years, the Hirschman family has been supplying petroleum products and formerly propane to families throughout the Great Lakes Bay region. Located in Reese, Michigan, this third-generation business began with Charles "Charlie" Hirschman. "Grandpa Charlie" started the businesses providing petroleum products with personal service to the residents of Reese — and outlying farmers.