
The impact of the Sherman Antitrust Act on Standard Oil’s dominance
1) Standard Oil Co. of New Jersey v. United States (1911)The 1911 breakup of Standard Oil under the Sherman Antitrust Act marked the first decisive federal victory against industrial monopoly. Founded by John D. Rockefeller, Standard Oil controlled roughly 90 percent of U.S. oil refining at its peak through aggressive acquisitions, preferential railroad rates, and predatory pricing.The Supreme Court ruled that the company had engaged in unreasonable restraints of trade and ordered it split into 34 independent entities, including future giants such as Exxon, Mobil, and Chevron. The case introduced the “rule of reason”, establishing that only unreasonable restraints violated…


