Southern Pacific Transportation Company Defunct Arkansas railroads Defunct Missouri railroads Defunct Texas railroads Defunct Illinois railroads Former Class I railroads in the United States Companies based in St. Louis Railway companies established in 1891 Railway companies disestablished in 1997 Defunct Tennessee railroads Defunct New Mexico railroads Defunct Louisiana railroads Defunct Kansas railroads Defunct Oklahoma railroads 1891 establishments in the United States 1997 disestablishments in the United States