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Union Pacific Railroad Company (UNP) is an American rail company established by an act of Congress on July 1, 1862, to build part of the first transcontinental railroad. Its original line extended 1,006 miles (1,619 km) westward from Omaha, Nebraska, to meet the Central Pacific Railroad, which was being constructed eastward from Sacramento, California. The two lines were joined at Promontory, Utah, on May 10, 1869, at what is now the Golden Spike National Historic Site.
Harriman used the railroad as a holding company for the securities of other transportation companies in his empire. His son, W. Averell Harriman, was chairman of the board of Union Pacific from 1932 to 1946.
A holding company owns enough voting stock in other businesses to control them, but it doesnât make or sell goods itself. The structure limits legal and financial risk, simplifies oversight, and helps manage diverse operations under one umbrella. Holding companies are also useful in mergers and acquisitions, allowing companies to combine assets, isolate liabilities, and restructure more easily.
In 1982, Union Pacific merged with two other railroads, Missouri Pacific Railroad Company (headquartered in St. Louis) and Western Pacific Railroad Company (based in San Francisco), to form what came to be called the Union Pacific System. Western Pacific became a subsidiary of Union Pacific at this time, while Union Pacific and Missouri Pacific retained their separate corporate identities until the merger was completed in 1997. At that time, traffic control and marketing for all three railroads were fully unified, and all lines operated under the Union Pacific name.
With its acquisition of the Southern Pacific Rail Corporation in 1996, Union Pacific became the largest domestic railroad in the United States, controlling almost all of the rail-based shipping in the western two-thirds of the country.
It carries products and commodities such as coal, automobiles, food, forest and agricultural products, and chemicals and is one of the largest intermodal shippers (including truck trailers and containers) in the country. Its corporate headquarters are in Omaha, the same city where the railroad laid its first tracks in 1865.
Merger with Norfolk Southern
In July 2025, Union Pacific agreed to acquire Norfolk Southern Corporation (NSC) for $85 billion in cash and stock. The deal would create the first single-company transcontinental freight railroad in the United States, operating some 50,000 miles of track in 43 states. The combined company would handle more than 40% of U.S. rail freight, prompting concerns about reduced competition. The merger is subject to federal regulatory approval.
Under the proposed terms, Norfolk Southern shareholders would receive one share of Union Pacific stock and $88.82 in cash for each Norfolk Southern share, valuing the company at roughly $320 a share. Union Pacificâs offer includes about $20 billion in cash.
The two companies plan to submit their merger application to the U.S. Surface Transportation Board by January 2026 and hope to receive approval by early 2027. Because Union Pacific operates primarily in the western half of the country and Norfolk Southern in the eastern half, the companies contend the deal would reduce freight delays by eliminating the need to hand off shipments between railroads.
Abraham Lincoln once called the railroad the United Statesâ most important goal.
