Monday, November 29, 2021 Business Louisiana Sonic franchisee sells to California-based group By Daily Report Staff - November 29, 2021 FacebookTwitterLinkedinEmailPrint Kergan Bros., the largest Sonic franchisee in Louisiana, sold its 56 locations to a California-based franchisee with locations in Texas and the Midwest, documents from the Lafayette Parish Clerk of Court show, The Daily Advertiser reports. Already an INSIDER? Sign in.