John D. Rockefeller: Founder of Standard Oil
Business Owner · Energy, Oil & Gas
John D. Rockefeller founded Standard Oil in 1870 and by 1900 controlled about 90 percent of US oil production, until the Supreme Court broke the company into 34 entities in 1911.
About John D. Rockefeller: Founder of Standard Oil
John Davison Rockefeller Sr. (July 8, 1839 to May 23, 1937) was an American businessman and philanthropist and one of the wealthiest Americans of all time. Born into a large family in Upstate New York that moved several times before settling in Cleveland, Ohio, he became an assistant bookkeeper at 16 and went into several business partnerships beginning at 20, concentrating on oil refining. He founded the Standard Oil Company in 1870, ran it until 1897 and remained its largest shareholder. In retirement he focused his energy and wealth on philanthropy, especially education, medicine, higher education and modernizing the Southern United States. As kerosene and gasoline became increasingly important, Rockefeller's wealth grew substantially, making him the richest person in the United States. By 1900 Standard Oil controlled about 90% of the nation's oil production, having lowered production costs and expanded oil distribution through corporate and technological innovations, while also benefiting from a legal environment that enabled consolidation. Critics argue that regulatory capture facilitated its monopoly power, a view reinforced by his reputed remark, "Competition is a sin." The company's practices drew criticism, particularly in the writings of Ida Tarbell, and in 1911 the Supreme Court ruled that Standard Oil must be dismantled for violating federal antitrust laws. It was broken up into 34 separate entities, including companies that became ExxonMobil, Chevron and others, some of which remain among the largest companies by revenue worldwide. Sources: English Wikipedia (John D. Rockefeller, accessed September 2026).
Basic Information
Founder, Standard Oil Company (1839-1937)
Company Details
Standard Oil Company
Oil Refining, Energy
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