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Bloomberg BusinessWeek Names Union Pacific to Top 50

Omaha, Neb., June 17, 2010Bloomberg BusinessWeek has named Union Pacific to its top 50 list, an annual ranking of the 50 top-performing stocks of the last five years. Union Pacific is ranked No. 44 with a five-year return of 127.9 percent. During this same period – from March 31, 2005 to March 31, 2010 – the S&P 500 Index returned 10 percent.

"While we are proud of our performance over the past five years, which includes one of the biggest downturns the U.S. economy has ever seen, we know the importance of remaining focused on safety, service and efficiency," said Jim Young, Union Pacific chairman and chief executive officer. "We continue to introduce valuable products and services for our customers. These and other long-term capital investments support our growth strategy and help Union Pacific reward shareholders."

About Union Pacific

Union Pacific Corporation owns one of America's leading transportation companies. Its principal operating company, Union Pacific Railroad, links 23 states in the western two-thirds of the country. Union Pacific serves many of the fastest-growing U.S. population centers and provides Americans with a fuel-efficient, environmentally responsible and safe mode of freight transportation. Union Pacific's diversified business mix includes Agricultural Products, Automotive, Chemicals, Energy, Industrial Products and Intermodal. The railroad emphasizes excellent customer service and offers competitive routes from all major West Coast and Gulf Coast ports to eastern gateways. Union Pacific connects with Canada's rail systems and is the only railroad serving all six major gateways to Mexico, making it North America's premier rail franchise.

Media contact: Heather Carpenter for Bloomberg BusinessWeek, (212) 617-1661 or hcarpenter@bloomberg.net.

Tom Lange for Union Pacific, (402) 544-3560 or tomlange@up.com.

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The statements and information contained in the news releases provided by Union Pacific speak only as of the date issued. Such information by its nature may become outdated, and investors should not assume that the statements and information contained in Union Pacific's news releases remain current after the date issued. Union Pacific makes no commitment, and disclaims any duty, to update any of this information.