Key Takeaways
- Oil executive Harold Hamm committed $150 million to the University of Oklahoma on September 22, 2026, the largest single gift in the school's history.
- The gift splits into $50 million for the Harold Hamm Diabetes Center and $100 million for the broader health campus, which will be renamed the Harold Hamm Health Campus at the University of Oklahoma.
- The commitment makes Hamm the university's largest individual donor, with lifetime giving approaching $250 million.
Oil executive Harold Hamm committed $150 million to the University of Oklahoma on September 22, 2026, the largest single gift in the university's history, with $50 million going to its diabetes center and $100 million to the health campus that will now carry his name.
What the records show
On September 22, 2026, the University of Oklahoma announced the gift and described it as the largest single gift in university history. Of the total, $50 million will advance research at the Harold Hamm Diabetes Center, which Hamm helped establish with a lead gift in 2007 after he was diagnosed with Type 2 diabetes in his 50s. The remaining $100 million will fund the broader academic and research enterprise of the health campus.
University of Oklahoma President Joseph Harroz Jr. framed the gift as more than its size.
It is Harold's belief in what is now possible and an invitation to all of us to seize this moment and improve lives for generations to come
The Harold Hamm Health Campus brings together six health professions colleges and the university's Graduate College, more than 4,100 students, and a growing community of researchers and clinicians. The university says the campus educates 80 percent of Oklahoma's health care workforce, and that its research enterprise this year earned Oklahoma's first Top 100 national ranking in National Institutes of Health funding.
The scale stands out against the university's own fundraising. The University of Oklahoma Foundation reported about $151.5 million in total contributions for the fiscal year ending June 2025, according to its latest Form 990. Hamm's single commitment nearly matches an entire year of gifts to the foundation from every other source combined.
Why it matters
The gift concentrates a large sum on one state's health system. The campus trains most of the people who staff Oklahoma's hospitals and clinics, and directing $100 million to that campus and $50 million to diabetes research ties the money to both the workforce and the disease Hamm has lived with. Hamm tied the commitment to the state itself.
Oklahoma has given me more than I could ever repay, and I can think of no greater investment than in the health and lives of its people
The gift also reshapes one donor's relationship to one institution. With this commitment, roughly 60 percent of Hamm's approximately $250 million in lifetime giving to the university arrives in a single gift. That makes the health campus, now bearing his name, the center of his philanthropy rather than one project among many.
People Also Ask
How much did Harold Hamm give the University of Oklahoma?
Harold Hamm committed $150 million to the University of Oklahoma, announced on September 22, 2026. It is the largest single gift in the university's history and makes Hamm its largest individual donor.
What will Harold Hamm's $150 million gift pay for?
Of the $150 million, $50 million will fund research at the Harold Hamm Diabetes Center and $100 million will support the broader health campus, which will be renamed the Harold Hamm Health Campus at the University of Oklahoma.
Why did Harold Hamm give to diabetes research?
Harold Hamm was diagnosed with Type 2 diabetes in his 50s and helped establish the University of Oklahoma's diabetes center with a lead gift in 2007. His $150 million commitment includes $50 million more for that center.
How large is the gift compared with the university's fundraising?
The University of Oklahoma Foundation reported about $151.5 million in total contributions for the year ending June 2025. Harold Hamm's single $150 million gift nearly equals that entire year of giving.
Sources: PR Newswire, KOSU.