The businessman who controlled over 90% of the oil production in america was . a: george pullman.. b: andrew carnegie.. c: john d. rockefeller. d: cornelius vanderbilt.

The businessman who controlled over 90 percent of the oil production in America was John D. Rockfeller. The correct option among all the options that are given in the question is the third option or option "C". He was born on 8th of July in the year 1839 and died on 23rd of May in the year 1937. I hope the answer helps you.

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