Respuesta :
Answer:
mainly through oil
Explanation:
Rockefeller: Standard Oil. In 1865, Rockefeller borrowed money to buy out some of his partners and take control of the refinery, which had become the largest in Cleveland. Over the next few years, he acquired new partners and expanded his business interests in the growing oil industry
Answer:
standarded oil
Explanation:
Rockefeller: Standard Oil. In 1865, Rockefeller borrowed money to buy out some of his partners and take control of the refinery, which had become the largest in Cleveland. Over the next few years, he acquired new partners and expanded his business interests in the growing oil industry