Q QC - Quebec Central Railway QCCX - Quantum Chemical Corporation QGRY - Quebec Gatineau Railway QNSX - Rail Enterprises Inc. (Doing Business As: Quebec North Shore and Labrador Railway on behalf of Iron Ore Company of Canada) QOCX - GE Rail Services QOHX - Quaker Oats Company QOTX - Quaker Oats Company (Chemicals Division) QRR - Quincy Railroad QSMX - Quaker State Oil Refining Corporation QSOX - Quaker State Oil Refining Corporation QTTX - TTX Corporation