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Form 990-PFTax year 2025EIN 46-1256191

The Harold Hamm Foundation

A private foundation in Oklahoma City, OK. Its return for tax year 2025 lists 5 grants and $1.7 million paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2025 (period ending Mar 31, 2026), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
Debra Richards
PO Box 1295
Oklahoma City, OK 73101
(405) 831-4003
[email protected]
Form and materials
Letter stating what the funds will be used for and the dollar amount requested.
Deadlines
None
Restrictions
Education or healthcare

Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $1,696,425

    Grants listed
    5
    Assets, end of year
    $8,142,566

  • Tax year 2024

    $4,538,807

    Grants listed
    10
    Assets, end of year
    $8,950,006

  • Tax year 2023

    $2,630,893

    Grants listed
    17
    Assets, end of year
    $11,084,019

  • Tax year 2022

    $2,212,129

    Grants listed
    16
    Assets, end of year
    $13,004,415

  • Tax year 2021

    $37,833,024

    Grants listed
    16
    Assets, end of year
    $15,100,240

  • Tax year 2020

    $1,749,101

    Grants listed
    14
    Assets, end of year
    $16,727,705

Grants paid in 2025

5 grants, largest first

As listed on the return.

  1. Ou FoundationNorman, OK

    General support

    $1,544,339
  2. McCall's Chapel SchoolAda, OK

    General support

    $95,586
  3. River City Hope StreetCedar Park, TX

    General support

    $30,000
  4. Turning Point USAIndianapolis, IN

    General support

    $25,000
  5. The Denny Price Family YMCAEnid, OK

    General support

    $1,500

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education1 grant $95,58675% of the total
  2. Jobs and employment1 grant $30,00024% of the total
  3. Human services1 grant $1,5001% of the total

By State

Grants to organizations with a US address, latest year.

  1. Oklahoma3 grants $1,641,425
  2. Texas1 grant $30,000
  3. Arizona1 grant $25,000

Officers, directors and trustees

2 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Harold G HammPRESIDENT Hours 2Pay $0
  • Shelly LambertzSECRETARY Hours 2Pay $0

The return

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