American businessman Harold Hamm has an estimated net worth of $14.1 billion in April 2019. This prominent oilman is known to be one of the supporters of Mitt Romney during the latter's presidential campaign in 2012. In 2012, his net worth is estimated to be around $11 billion making him the 76th wealthiest person in the world and America's 30th richest man. Currently, Harold Hamm serves as the Chief Executive officer of Continental Resources.

From car repairs to pumping gas, Hamm moved his way up until he became the CEO of Continental Resources when it was yet called as Shelly Dean Oil Company. Since 1967, he has been serving as the CEO of Continental Resources. He is also a key executive in Hiland Holdings and Hiland Partners.

Harold Hamm was born on December 11, 1945  in Lexington, Oklahoma. He was previously married to a Continental executive however, they divorced in 1987. His first marriage resulted in the birth of his first three children. In 1988, he married Sue Ann Hamm with whom he has two daughters named Hilary and Jane. Reports claimed that on May 19, 2013, his wife filed for a divorced.