Hopefully Union Pacific's testing of two different retrofit technologies for reducing emissions in older locomotives, an experimental "oxidation catalyst" filtering canister and a diesel ...

Jim Vena, the chief executive of Union Pacific, which is investing in fuel-efficient diesel locomotives as well as those that ...

After all, most of the United States replaced steam-powered locomotives in the late 1950s and early 1960s with their diesel counterparts ... a locomotive delivered by Union Pacific Railroad ...

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A Union Pacific Z-train was moving at 64 mph when it collided with a 45.5-ton piece of heavy equipment on a grade crossing in ...

Union Pacific reported profit 7% higher from a year ago, as rail freight volumes gained and operating margin improved.