Canadian National Railway (TSX: CNR, NYSE: CNI)

CN had been stuck in a trading range between $72 and $90 over the last two years as the slowdown in the oil and gas and coal industries led to declines in carloadings and revenues. Now that the worst seems to be behind the energy sector, there is the chance that revenue growth will resume, helping CN's cost efficiencies. The stock remains a Buy for its low-cost operations, wide geographical and industry exposure, and effective use of capital.- Gavin Graham