Standard Oil an "unreasonable" monopoly under the Sherman Antitrust Act, Section II. It ordered Standard to break up into 34 independent companies with different boards of directors, the biggest two of the companies were Standard Oil of New Jersey (which became Exxon) and Standard Oil of New York (which became Mobil). Standard's president, John D. Rockefeller, had long since retired from any management role. But, as he owned a quarter of the shares of the resultant companies, and those share values mostly doubled, he emerged from the dissolution as the richest man in the world. The dissolution had actually propelled Rockefeller's personal
Standard Oil Standard company only from 1908 until 1911. One of the original "Muckrakers" was Ida M. Tarbell, an American author and journalist. Her father was an oil producer whose business had failed due to Rockefeller's business dealings. After extensive interviews with a sympathetic senior executive of Standard Oil, Henry H. Rogers, Tarbell's investigations of Standard Oil fueled growing public attacks on Standard Oil and on monopolies in general. Her work was published in 19 parts in "McClure's" magazine from November 1902 to October 1904, then in 1904 as the book "The History of the Standard Oil Co". The Standard Oil Trust