Cheap natural gas and environmental laws are driving utilities away from coal. As more coal-fired plants shift to natural gas, we expect the drop in demand for coal will affect railroads, such as CSX Corporation (NYSE:CSX), Norfolk Southern Corporation (NYSE:NSC), and Union Pacific Corporation (NYSE:UNP), which transport coal to these utilities. In its fourth quarter and financial year 2011 results announced last month, CSX Corporation reported 3% year-on-year decline in volume of coal transported, even as it realized a 10% growth in annual revenues to $11.74 billion backed by core pricing gains, greater fuel surcharges and slight increase total volume compared to last year. We have revised our estimate price for CSX Corporation to $27, which is around 28% above the current market price. We have updated our model with the latest earnings release, made adjustments to the volume of coal moved by U.S. Class I rails and changed the discount rate for the company to account for increased market volatility and uncertainty.