William Rockefeller

Standard Oil Trust Formed - First Modern Corporate Monopoly Structure

| Importance: 10/10

On January 2, 1882, John D. Rockefeller and 40 other investors signed the Standard Oil Trust Agreement, creating the first modern corporate monopoly structure that controlled 90% of American oil refining. The trust pooled securities from 40 companies under nine trustees—John and William Rockefeller, …

John D. Rockefeller Standard Oil Company Henry Flagler Samuel C. T. Dodd William Rockefeller corporate-power monopoly trust-formation gilded-age institutional-capture
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Standard Oil Company Incorporated in Ohio by John D. Rockefeller

| Importance: 9/10

John D. Rockefeller incorporated the Standard Oil Company in Ohio with $1 million in capital, transforming an 1863 partnership into what would become America’s most powerful monopoly. The company was formed with Rockefeller, his brother William, Henry Flagler, Samuel Andrews, and other …

John D. Rockefeller Standard Oil Company Henry Flagler Samuel Andrews William Rockefeller corporate-power monopoly gilded-age oil-industry institutional-capture
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