Union Pacific To Complete Train Speed Increase East Of Big Spring

Track Designation to Allow Gradual Speed Increase of Remaining One Mile Segment of Track

Spring, Tex., December 12, 2006 – Due to recent track maintenance projects, Union Pacific Railroad will complete the maximum train speed increase announced in November of 2005 in the remaining one mile segment of track east of Big Spring.

Union Pacific will gradually increase train speeds in the short segment from 40 mph to 70 mph for certain freight trains and 79 mph for Union Pacific passenger trains.  The gradual increases of five mph per week will begin on December 18 until the new limits are reached on January 22. 

Although the only crossing located within the segment is N. Midway Rd., the change is expected to improve public traffic flow and grade crossing safety as statistics show that more highway-rail grade crossing collisions occur at slower train speeds.  At the same time, slower train speeds can cause traffic delays as trains occupy crossings longer.

Jobs at Union Pacific

Currently, Union Pacific has job openings at many locations throughout its 23-state operating system. Opportunities are available in train service, skilled disciplines (e.g., diesel mechanics and electricians) and management. Interested applicants are encouraged to visit www.up.com and click on “Jobs at UP.”

About Union Pacific

Union Pacific Corporation owns one of America’s leading transportation companies. Its principal operating company, Union Pacific Railroad, links 23 states across the western two-thirds of the country and seves the fastest-growing U.S. population centers.  Union Pacific's diversified business mix includes Argricultural 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.

For further information, contact Joe Arbona (281) 350-7771.

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 Such information by its nature may become outdated, and investors should not assume that the statements and information contained in Union Pacific's news releases remain current after the date issued.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