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 wealth. By 1911, with public outcry at a climax, the Supreme Court of the United States ruled, in "Standard Oil Co. of New Jersey v. United States", that Standard Oil of New Jersey must be dissolved under the Sherman Antitrust Act and split into 34 companies. Two of these companies were Standard Oil of New Jersey (Jersey Standard or Esso), which eventually became Exxon, and Standard Oil of New York (Socony), which eventually became Mobil; those two companies later merged into ExxonMobil. Over the next few decades, both companies grew significantly. Jersey Standard, led by Walter C. Teagle, became the