Union Pacific Corporation to Host Analyst Conference and Webcast

Omaha, Neb., May 05, 2008 – Union Pacific Corporation (NYSE: UNP) will host a live webcast of a meeting for financial analysts and investors in Chicago, Ill.  The conference will begin at 1:00 p.m. Central Time, Thursday, May 15, and conclude at approximately 5:30 p.m.

 What:   Union Pacific Corporation's 2008 Analyst Conference

 When:  Thursday, May 15, 2008 - 1:00 p.m. CT

 Where:  www.up.com (under Investors)

 How:     Live over the Internet - Simply logon to the Web at the address above
Contact: Jennifer Hamann, Assistant Vice President - Investor Relations at 402/544-4227

Also, on May 15, the 2007 Analyst Fact Book will be made available via the Web at www.up.com (under Investors).

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 and serves the fastest-growing U.S. population centers. Union Pacific’s diversified business mix includes Agricultural Products, Automotive, Chemicals, Energy, Industrial Products and Intermodal. The railroad offers competitive long-haul 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.

If you are unable to participate during the live teleconference, the call will be archived on Union Pacific's Web site at www.up.com.  To access the replay, click on Investors.

(Minimum requirements to listen to broadcast: Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp, and at least a 28.8 Kbps connection to the Internet.)

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 Such information by its nature may become outdated, and investors should not assume that the statements and information contained in Union Pacific's news releases remain current after the date issued.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.