Southern FS is a locally owned agricultural cooperative that serves producers in Alexander, Franklin, Hardin, Jackson, Johnson, Massac, Perry, Pope, Pulaski, Saline, Union and Williamson counties in Illinois. Through its predecessor companies, the cooperative has been in the agricultural business since 1931. It offers production agriculture and crop marketing. The cooperative s product offerings include Dieselex Gold, a premium diesel fuel for farm use, and FS lubricants. Southern FS maintains approximately eight locations throughout the territory to serve its customers more efficiently from locations, such as Marion, Ill.