Union Pacific Railroad

The Union Pacific Railroad {{nyse|UNP}} is the largest railroad in the United States. Its primary AAR reporting mark is UP. Richard K. Davidson, who began his career as a Missouri Pacific brakeman in 1960, has headed Union Pacific Railroad since 1991 and parent Union Pacific Corporation since 1997. James R. Young is president and chief operating officer and Richard "Dick" K. Davidson is the CEO of the Railroad.

Surviving Merger Partner Locomotives

As of July 31, 2005, Union Pacific operates as many as 152 Southern Pacific, 36 St. Louis Southwestern (Cotton Belt), 6 Chicago and North Western, and 13 Denver and Rio Grande Western locomotives still in their former railroad's paint. In addition, many locomotives have been "patch" renumbered by UP, varying in the degree of the previous railroads' logos being eradicated, but always with a yellow patch applied over the locomotive's former number and a new Union Pacific number applied on the cab. This allows UP to number locomotives into its roster, yet it takes less time and money than it does to perform a complete repaint into UP colors. As of July 31, 2005, Union Pacific rostered a grand total of 492 "patches", consisting of 37 Chicago and North Western patches, 445 Southern Pacific patches, 47 St. Louis Southwestern patches, and 23 Denver and Rio Grande Western patches.

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