The stock's fall snapped a four-day winning streak.

Shares of Union Pacific Corp. UNP inched 0.21% higher to $230.23 Thursday, on what proved to be an all-around mixed trading ...

Colorado officials reached an agreement announced this week allowing Union Pacific Railroad to lease the Moffat Tunnel for ...

An investigation is underway after a Union Pacific train derailed in Carson on Monday afternoon. Firefighters were dispatched ...

Two Union Pacific employees are dead and three people are injured after a train hit a tractor-trailer stopped on the railroad ...

Union Pacific wants to erect three 65-foot high monopoles along its railroad right-of-way in Manteca. A fourth is proposed in ...

The company says effective immediately, they will not have trains running for one hour during school drop-off and pick-up ...

Colorado and Union Pacific are nearing a deal to extend rail service through the Moffat Tunnel, improving mountain community ...

The agreement would help clear the way for the Polis Administration's goal of passenger rail from Denver to Craig.

Two male Union Pacific workers have been confirmed dead Thursday morning after a train derailed and hit the Chamber of ...

The state of Colorado will not have to pay a fee to Union Pacific to use its track for a Denver-Craig passenger train, while ...

Union Pacific will stop running trains at arrival and departure times near Milby High School after sophomore Sergio Rodriguez ...