Union Pacific Corporation is a publicly traded railroad holding company. It was incorporated in Utah in 1969 and is headquartered in Omaha, Nebraska. It is the parent company of the current, Delaware-registered, form of the Union Pacific Railroad, and the company, along with Berkshire Hathaway-owned rival BNSF, has a near-duopoly on freight railroad transportation west of the Mississippi River. Union Pacific was located in New York City from the company's re-founding in 1969 until Drew Lewis became CEO in the mid-1980s. He relocated the corporate headquarters to Bethlehem, Pennsylvania. Later the headquarters was shifted to Dallas, Texas, before relocating the corporate headquarters to Omaha to join the Union Pacific Railroad headquarters. The Union Pacific Corporation has a portfolio of acquiring the Missouri Pacific Railroad which included the Missouri–Kansas–Texas Railroad, the Chicago and North Western Transportation Company, the Western Pacific Railroad, the Denver and Rio Grande Western Railroad, the St. Louis Southwestern Railway, the SPCSL Corporation, and the Southern Pacific Transportation Company. Wikipedia