The Harold Hamm Foundation
The Harold Hamm Foundation is a private foundation based in Oklahoma City, Oklahoma. Its 2025 filing states that awards are restricted to education or healthcare.
The Harold Hamm Foundation at a glance
In short: The Harold Hamm Foundation gave $1.7M across 5 grants in 2026 (avg $339K), mostly in Oklahoma. Source: 2026 IRS Form 990-PF.
- Annual giving (2026)
- $1,696,425
- -62.6% vs 2025
- Grants made (2026)
- 5
- -50.0% vs 2025
- Average grant
- $339,285
- -25.2% vs 2025
- Median grant
- $30,000
- Total assets
- $8,142,566
- -9.0% vs 2025
- Primary geography
- Oklahoma (97% of itemized 2026 grant dollars)
- Latest 990 filing
- Form 990-PF, 2026 View filing
Data from IRS Form 990-PF, 2026; updated October 2026.
How to apply to The Harold Hamm Foundation
- Contact
Application contact: Debra Richards
Mailing address: PO Box 1295, Oklahoma City, OK 73101
Phone: (405) 831-4003
Email: deb@hamm-capital.com
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Harold Hamm Foundation funds
How this funder distributes its grants
Top Recipients
Top 5 recipients in 2026
The largest 2026 recipient was Ou Foundation ($1.5M). Together the top 5 received $1.7M.
Grant Size Distribution
64 grants across all recorded years
The most common grant size was under $50K: 49 grants of 64 (77%).
Geographic Focus
Where this funder awards grants
In 2026, 97% of grant dollars went to recipients in Oklahoma, 2% to recipients in Texas, and 1% to recipients in Arizona.
Grant Distribution by State
Share of 2026 grant dollars across all 5 itemized grants.
Cities
How The Harold Hamm Foundation gives
- Giving fell 23% from 2023 to 2026. Method
- In 2026 it paid out 205% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2026, annual grant giving ranged from $1.7M (2026) to $37.8M (2022). In 2026 it made 5 grants totaling $1.7M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Ou Foundation Norman, OK | General Support | $1,544,339 |
| McCall's Chapel School Ada, OK | General Support | $95,586 |
| River City Hope Street Cedar Park, TX | General Support | $30,000 |
| Turning Point USA Phoenix, AZ | General Support | $25,000 |
| The Denny Price Family YMCA Enid, OK | General Support | $1,500 |
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Financial History
Multi-year comparison from IRS filings
The filing type is Form 990-PF.
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2026 | $8,142,566 | $159,347 | $1,705,601 | $1,696,425 | 5 | $1,697,920 | $156,047 | $828,855 |
| 2025 | $8,950,006 | $160,081 | $4,548,947 | $4,538,807 | 10 | $4,538,867 | $160,036 | $856,975 |
| 2024 | $11,084,019 | $162,896 | $2,635,638 | $2,630,893 | 17 | $2,632,098 | $161,690 | $845,066 |
| 2023 | $13,004,415 | $167,887 | $2,263,712 | $2,212,129 | 16 | $2,227,712 | $167,887 | — |
| 2022 | $15,100,240 | $36,211,204 | $37,838,669 | $37,833,024 | 16 | $37,838,669 | $3,703,185 | $1,323,902 |
| 2021 | $16,727,705 | $300,477 | $2,029,132 | $1,749,101 | 14 | — | $256,260 | $1,105,069 |
Under IRS private-foundation payout rules, The Harold Hamm Foundation reported a distributable amount of $829K for 2026 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No foundation mission statement is provided. The foundation’s 2025 filing lists education or healthcare as restrictions on awards. Among its 2026 grantees, McCall’s Chapel School Inc. says its mission is to enable people with developmental disabilities to be productive members of society, make independent and responsible choices, and live dignified, happy, self-determined lives.
Grantmaking
In filing year 2026, the foundation reported five grants totaling $1,696,425. Grant amounts ranged from $1,500 to $1,544,339, with a median of $30,000. The largest awards were $1,544,339 to OU Foundation for general support and $95,586 to McCall’s Chapel School for general support. Other listed grants included $30,000 to River City Hope Street, $25,000 to Turning Point USA, and $1,500 to The Denny Price Family YMCA, each for general support.
The foundation’s 2025 filing says it does not restrict giving to preselected organizations. How to apply: The filing instructs applicants to send Debra Richards a letter stating what the funds will be used for and the dollar amount requested. The filing lists education or healthcare as award restrictions. Deadline: None.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2026 filing lists Harold G Hamm as president and Shelly Lambertz as secretary.
The Harold Hamm Foundation is led by Harold G. Hamm, President on every filing since 2021; none of the 2 officers listed in 2026 report compensation.
Officers on the 2026 filing
Harold G. Hamm
President
On filings since 2021
2 hrs/week
No compensation reported
Shelly Lambertz
Secretary
On filings since 2021
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2021–2026. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Harold Hamm Foundation
How much does The Harold Hamm Foundation give each year?
The Harold Hamm Foundation gave $1.7M across 5 grants in 2026, according to its 2026 IRS Form 990-PF. In 2025 it gave $4.5M across 10 grants.
What is The Harold Hamm Foundation's typical grant size?
The Harold Hamm Foundation's median grant in 2026 was $30,000, and its average grant was $339,285, across 5 grants on its 2026 IRS Form 990-PF.
Where does The Harold Hamm Foundation give grants?
The Harold Hamm Foundation gives mostly in Oklahoma: 97% of the grant dollars itemized on its 2026 IRS Form 990-PF went to recipients there.
Does The Harold Hamm Foundation give general operating support?
Yes: 100% of The Harold Hamm Foundation's 2026 grants with a stated purpose (5 of 5) were for general or operating support, per its 2026 IRS Form 990-PF.
Who are The Harold Hamm Foundation's largest grantees?
The Harold Hamm Foundation's largest 2026 grantees include Ou Foundation ($1,544,339), McCall's Chapel School ($95,586) and River City Hope Street ($30,000), according to its 2026 IRS Form 990-PF. Together they received 98% of its itemized 2026 grant dollars.
How large is The Harold Hamm Foundation?
The Harold Hamm Foundation reported $8.1M in total assets on its 2026 IRS Form 990-PF. It paid out $1.7M in qualifying distributions that year, against a required minimum of $829K (roughly 5% of its investment assets).
What does The Harold Hamm Foundation fund?
No foundation mission statement is provided. The foundation’s 2025 filing lists education or healthcare as restrictions on awards. See mission & focus areas ↑
How do I apply for a grant from The Harold Hamm Foundation?
The Harold Hamm Foundation has no public application process in the sources Grantable reviewed. Contact the foundation directly before submitting a request.
What is The Harold Hamm Foundation's EIN?
The Harold Hamm Foundation's EIN (Employer Identification Number) is 46-1256191. IRS Form 990 filing data is available on this page for 2021–2026.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2026 (received by the IRS August 13, 2026)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS October 7, 2021)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS August 9, 2022)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS August 7, 2023)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 12, 2026)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS April 3, 2026)
- IRS filings on file for fiscal years 2021–2025
Live grants for the work The Harold Hamm Foundation funds
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