John D. Rockefeller 's Standard Oil was broken up in 1911 , but owning stakes in a lot of companies left Rockefeller even wealthier than he was .
John D. Rockefeller
Standard Oil
/business/person/company
Standard Oil
John D. Rockefeller
/business/company/founders
PERSON
John D. Rockefeller
ORGANIZATION
Standard Oil
ORGANIZATION
Rockefeller