Darrin Flitton elected chairman of NATSO board of directors. NATSO, the national trade association representing truckstops and travel plazas, has named Darrin Flitton, fleet and truckstop manager of the Gold Truckstop network for Sinclair Oil, as its 2012 chairman of the board. Flitton, who succeeds Bobby Berkstresser as chairman, has served 24 years in truckstop…