John D. Rockefeller Net Worth
What Was John D. Rockefeller's Net Worth? John D. Rockefeller was an American business magnate and philanthropist. An accounting clerk by trade, John D. Rockefeller turned a $4,000 investment in a Cleveland oil refinery into one of the largest fortunes in modern human history. At his all-time peak, John D. Rockefeller's net worth was $1 billion. That's the same as around $340 billion after adj...