Magcobar

Company History: In November 1949, the Magnet Cove Barium Corporation of Houston, Texas, joined the ever-expanding list of subsidiaries, costing Dresser $2.8 million. A well-run, technologically advanced company, Magnet Cove—later known as Magcobar—was a supplier of drilling mud, a little known although essential ingredient in completing an oil well. The mud, composed of barite and other ingredients, was mixed to suit each well. Drilling mud was needed for several important functions such as lubricating the drill bit, partially supporting the weight of the casing, and preventing fluids under high pressure from entering the well.

Brief History: The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.