Harold Hamm

One of the richest men, Harold Hamm is ranked in 76^th position in the World and 30^th in America, according to the 2012 Forbes March issue. Being from a poor family, the first job he did was pumping gas and car repairing. Today, he serves the Continental Resources as its CEO, the key player of this Oil and Natural Gas Exploration Company. Continental Resources is ranked as the fourth largest public company in Oklahoma, U.S. Since 1967, he started serving the company as CEO.

Chairman & CEO of Continental Resources