Story

Ida Tarbell Takes on Rockefeller

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Authors: Stephanie Gorton

Historic Era: Era 7: The Emergence of Modern America (1890-1930)

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Winter 2026 | Volume 71, Issue 1

Editor’s Note: Stephanie Gorton is a prize-winning biographer and journalist. Among her books is Citizen Reporters: S. S. McClure, Ida Tarbell, and the Magazine that Rewrote America, a fascinating history of the team of journalists who made publishing history. Portions of this essay appeared in Gorton’s book.

In January 1903, journalist Ida Tarbell felt her usual cheerful stamina wearing thin. In the midst of an investigative series on John D. Rockefeller’s Standard Oil for McClure’s magazine, she began to long for escape. Not content with monopolizing the oil industry, Standard Oil had swallowed her life, too.

“It has become a great bugbear to me,” she told her assistant, John Siddall, adding that she longed to trade in the task at hand for a trip to Europe. Instead, Tarbell would devote nearly five years to research and write her series on Rockefeller and Standard Oil Company. The landmark exposé ran in McClure's from 1902 to 1904. It was a work “of unequalled importance as a ‘document’ of the day,” observed the Boston Globe. “The results are likely to be far-reaching; she is writing unfinished history.”

Tarbell at her desk in 1905. The Ida M. Tarbell Collection, Pelletier Library, Allegheny Coll, Meadville PA
Tarbell at her desk in 1905. The Ida M. Tarbell Collection, Pelletier Library, Allegheny College.

In fact, the series of articles would lead to the breakup of Rockefeller's Standard Oil, widely considered the largest and most dominant corporation in the world at the time. It controlled approximately 90% of U.S. oil production and refining, and 85% of final sales in the nation.

In the Gilded Age, the number of American magazines doubled every decade until there were more than 5,000 in 1895.

Tarbell’s boss, S. S. McClure, publisher of the magazine that bore his name, told her, “You cannot imagine how we all love & reverence you. You are the real queen of the establishment.” McClure crowed victory to Richard Watson Gilder, editor of rival magazine The Century, that the investigative turn of McClure’s reflected a new social responsibility that now belonged to the magazines. His hope was to “get the people to see that we have been left simply the husks of liberty while the real substance has been stolen from us.”

McClure told Gilder that magazines had a better chance of waking up their readership than any other medium. “It evidently is up to the magazines to arouse this public opinion, for the newspapers have forfeited their opinion by sensationalism and by selling their opinions to a party.”

McClure's Magazine, July 1905
Among the articles on Standard Oil in McClure's Magazine was a profile of Rockefeller in the July 1905 issue.

Throughout the Gilded Age — and its hopeful successor, the Progressive Era — the United States was deeply divided between progressives and conservatives, stretched by recessions at home and wars abroad, and astonished by advances in speedy new communications technologies. Wealth inequality had