Who served as president of Standard Oil in 1926?

• A. John D. Rockefeller
• B. Ida Tarbell
• C. Walter Teagle
• D. H. H. Rogers

Answer: (C)

This question tests who led Standard Oil during the mid-1920s, after the 1911 breakup of the trust. In 1926, the president of the surviving Standard Oil company in New Jersey was Walter Teagle. He had taken the helm around 1917 and guided the company through the Roaring Twenties, overseeing expansion and modernization of refining, distribution, and international operations. John D. Rockefeller founded and ran the company in its early days, but by 1926 he was no longer its president. Ida Tarbell was a journalist famous for exposing the monopoly, not a corporate leader. H. H. Rogers was a key Rockefeller associate and financier, but not the president of Standard Oil in that year. So Teagle is the figure who held the top position in 1926.