Shares of some top railroad companies are up at 10 a.m.:

CSX rose $.13 or .4 percent, to $31.10.

Canadian National Railway Co. rose $.14 or .2 percent, to $65.42.

Canadian Pacific Railway Ltd. rose $2.66 or 1.5 percent, to $182.86.

Kansas City Southern rose $.30 or .3 percent, to $107.50.

Norfolk Southern Corp. rose $.38 or .4 percent, to $102.93.

Union Pacific rose $.14 or .1 percent, to $100.24.