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 /business/person/company Standard Oil
Standard Oil /business/company/founders John D. Rockefeller
NNP NNP NNP POS NNP NNP VBD VBN RP IN CD , CC VBG NNS IN DT NN IN NNS VBD NNP RB JJR IN PRP VBD .
John D. Rockefeller
PERSON
Standard Oil
ORGANIZATION
/business/person/company
Standard Oil
ORGANIZATION
John D. Rockefeller
PERSON
/business/company/founders