The railroad operator provides freight transportation services to 23 states, covering 2/3 of the western United States.
News about Union Pacific
Walmart's reversal followed a tweet Monday by actress and activist Debra Messing, who called the retailer out to her 531,000 followers
This CEO has overhauled three railways; he'd like to make it four.
New highway and water projects may boost these companies.
Videos about Union Pacific
On Fortune Live, Host Leigh Gallagher welcomes chief executive officer of Walmart Doug McMillon, president and chief executive of Union Pacific Lance Fritz, and chairman of the board and chief executive officer of General Electric Jeff Immelt.
The company's CEO sits down with Fortune's Susie Gharib to talk about the impact of higher interest rates on the railroad giant.