In this Monday, July 15, 2013, photo, a Union Pacific Railroad sist on a track in a rail yard, Monday, July 15, 2013, in Phoenix. Union Pacific Corp. reports quarterly financial results before the ... more 
In this Monday, July 15, 2013, photo, a Union Pacific Railroad sist on a track in a rail yard, Monday, July 15, 2013, in Phoenix. Union Pacific Corp. reports quarterly financial results before the market opens on Thursday, July 18, 2013. (AP Photo/Ross D. Franklin) less 
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Associated Press | Photo By Ross D. Franklin
Thu, Jul 18, 2013 9:11 AM EDT