Forbes -
4 Mar 2013 19:48

No one has made a greater fortune from the North American Oil and Gas Boom than Harold Hamm. The founder and CEO of Continental Resources is responsible for cracking the code of the Bakken -- the vast formation of oil-bearing rock that sits beneath much of North Dakota and Montana. With his 72% ownership stake in publicly traded Continental, Hamm is now worth $11.3 billion, making him the 90th richest person on the planet, according to Forbes newly released annual ranking of the world's billiona...
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