Union Pacific Corporation provides rail transportation services across 23 states in the United States through its principal operating company, Union Pacific Railroad Company. As the largest railroad in North America, Union Pacific connects the Pacific and Gulf Coast ports with the Midwest and gateways in eastern United States. The company also connects with Canada's rail systems and is the only railroad, serving all the six major gateways to Mexico. 

Union Pacific offers transportation services for agricultural products, automotive products, lumber, steel, paper, food, chemicals, coal and industrial products, as well as for finished vehicles and intermodal containers. 

Union Pacific, based in Omaha, NE, also provides container and traffic services, primarily for shipper agents and consolidators, as well as for truckload carriers. The company was incorporated in Utah in 1969. 

From first-quarter 2020, Union Pacific has been reporting through three business groups: Bulk (formerly agricultural products), Industrial and Premium.

The bulk division (32.6% of freight revenues generated in 2023) is responsible for the transportation of grains, commodities produced from these grains, and fertilizers, apart from food and beverage products. The segment serves major grain markets, linking the Midwest and Western United States producing areas to export terminals in the Pacific Northwest and Gulf Coast ports and Mexico. 

The coal and petroleum coke products also come under the bulk group.

The Industrial unit (36.5%) includes multiple categories like construction materials, industrial chemicals and soda ash. LPG and petroleum products are also included here. 

The company’s premium division (30.9%) includes three segments, namely international intermodal, domestic intermodal and automotive. 

Freight revenues account for the bulk of the company's top line. In 2023, 93.6% of the company’s total revenues of $24.11 billion came from this source. 

The company's fiscal year coincides with the calendar year.