Harold Hamm | |
|---|---|
 Hamm at the 2012 Time 100 gala | |
| Born | Harold Glenn Hamm December 11, 1945 |
| Political party | Republican |
| Spouse(s) | Judith (divorced 1987) Sue Arnall (divorced 2014) |
| Children | 5 |
Harold Glenn Hamm (born December 11, 1945) is an American entrepreneur. He is best known for he development of the large shale oil resources of the Bakken formation.
As of January 2018, Hamm's net worth is said to be $14.2 billion, making him the 79th richest person in the United States.
In 2012, presidential candidate Mitt Romney named Hamm as his energy advisor.
In 2016, then-Republican presidential nominee Donald Trump was thinking about making Hamm United States Secretary of Energy.
In October 2025, Hamm was named by the White House as a donor to the construction of the White House State Ballroom, a proposed 90,000-square-foot expansion of the East Wing.
In March 2026, Hamm called Oklahoma Governor Kevin Stitt to ask if he could be picked to replace Markwayne Mullin as U.S. Senator after Mullin becomes Secretary of Homeland Security. However Stitt ended up picking businessman Alan Armstrong as Mullin’s replacement.
