Reading comprehension issue To User Rsrikanth05 federal trustbusters began their long eventually futile attempt to break up Morgan and Schwab s creation New competitors including a company run by Schwab quickly diminished the company s market dominance A hundred years after it controlled two thirds of the domestic market U S Steel shipments account for about 8 percent of U S consumption Source Steel Standing U S Steel celebrates 100 years For anybody but a cretin with reading comprehension issues the above would constiute a valid citation supporting this article excerpt The federal government attempted to use federal antitrust laws to break up U S Steel in 1911 but that effort ultimately failed Time and competitors have however accomplished nearly the same thing In its first full year of operation U S Steel made 67 percent of all the steel produced in the United States One hundred years later its shipments accounted for only about 8 percent of domestic consumption