The Harold Hamm Foundation
Historical FunderOklahoma City, Oklahoma · EIN 46-1256191 · Private foundation
Half of its grants to organizations were between $25,000 and $95,586.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | DEBRA RICHARDS |
|---|---|
| Address | PO BOX 1295, OKLAHOMA CITY OK 73101 |
| Phone | 4058314003 |
| DEB@HAMM-CAPITAL.COM | |
| Form and materials | LETTER STATING WHAT THE FUNDS WILL BE USED FOR AND THE DOLLAR AMOUNT REQUESTED. |
| Deadlines | NONE |
| Restrictions | EDUCATION OR HEALTHCARE |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
40% of grants went outside Oklahoma.
Grants paid in tax year 2025
| Recipient | Location | 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 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $1,696,425 | 5 |
| 2024 | $4,538,807 | 10 |
| 2023 | $2,630,893 | 17 |
Sources
- IRS Form 990-PF, tax year 2025, filed Aug 13, 2026 - IRS e-file batch, object ID 202642259349101314
- IRS Tax Exempt Organization Search for EIN 46-1256191
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.