That’s where Union Pacific comes in. The Fund has for years argued that Union Pacific, through corporate mergers, took on responsibility for damage caused by the long-defunct Superior Coal Company, which ran mines in Macoupin County, Illinois between 1904 and 1953. Superior dissolved in 1957. Union Pacific, which merged with Chicago and North Western Railway Company in 1995, has consistently pushed back, saying it isn’t on the hook for mine damage decades after the fact.
