The Richest Oil And Gas Billionaires In The World
The Koch brothers – Charles and David – are two of the wealthiest people in the U.S. each are worth $40 billion. The Koch brothers are co-owners of Koch Industries. Originally engaged solely in oil refining and chemicals, Koch Industries now also deals in process and pollution control equipment and technologies; polymers and fibers; minerals; fertilizers; commodity trading and services; forest and consumer products; and ranching. Harold Hamm of Continental Resources has a net worth of $13....