Fuel costs continue to consume a significant portion of Class I railroads' budgets. Even as diesel prices dropped slightly, all but three of them spent more on fuel in 2014 than they did in 2013. For Union Pacific Railroad and Kansas City Southern, fuel expenses took up nearly a quarter of their total operating expenses in 2014, with UP absorbing $3.5 billion in fuel costs for the year and KCS spending around $4.2 million.
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