Private Foundation

THE HAROLD HAMM FOUNDATION

Based in OKLAHOMA CITY, OK, THE HAROLD HAMM FOUNDATION operates as a Private Foundation. The organization reported $160K in revenue, $4.5M in expenses, $9.0M in total assets for fiscal year 2025. Imperigo tracks 90 reported grants from this foundation totaling approximately $51.0M.

EIN: 461256191 OKLAHOMA CITY, OK Latest filing: 2025

Total Revenue$160K

Total Expenses$4.5M

Total Assets$9.0M

Grants Given90

Grant Total$51.0M

Filing Years2021–2025

Sample Grants Given

OU FOUNDATION

NORMAN, OK · 2024

GENERAL SUPPORT

$3,988,990

AMERICA FIRST POLICY INSTITUTE

ARLINGTON, VA · 2024

GENERAL SUPPORT

$497,467

HORATIO ALGER ASSOCIATION

ALEXANDRIA, VA · 2024

GENERAL SUPPORT

$30,000

PENFED FOUNDATION

ALEXANDRIA, VA · 2024

GENERAL SUPPORT

$10,000

INFANT CRISIS SERVICES INC

OKLAHOMA CITY, OK · 2024

GENERAL SUPPORT

$5,000

Showing up to 5 of 90 total records — full history available with membership.

Officers & Directors

PRESIDENT Harold G Hamm

SECRETARY Shelly Lambertz

Officer compensation and complete director data available with membership.

Top Grant Purposes

CREATION OF HAMM INSTITUTE AMERICAN ENERGY

$25,000,174 1 grant

TO CONTRIBUTE TOHAMM SCHOOL OF ENGINEERING

$10,200,453 1 grant

FUNDING OF VARIOUS RESEARCHEXPENDABLE FUNDS FOR DIABETES

$6,007,444 5 grants

GENERAL SUPPORT

$4,538,807 10 grants

FUNDING OF VARIOUS DIABETES RESEARCH

$1,424,600 1 grant

Financial Trends

Year	Revenue	Expenses	Assets
2025	$160K	$4.5M	$9.0M
2024	$163K	$2.1M	$11.1M
2023	$168K	$2.3M	$13.0M
2022	$36.2M	$37.8M	$15.1M
2021	$300K	$2.0M	$16.7M

Between 2021 and 2025, reported annual revenue declined from $300K to $160K (-47%), with total assets most recently reported at $9.0M.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in CA, ND, NH, OK, OR, VA, and 1 other state.

CANDNHOKORVAWI

Full geographic grant map with state-by-state breakdown available with membership.

See the full picture for THE HAROLD HAMM FOUNDATION

Complete financials, all 90 grant records, officer compensation, year-over-year trend charts, a geographic grant map, and data exports — across 498,000+ organizations.

Full Financial History Complete Grant Activity Officer Compensation Year-over-Year Charts Geographic Grant Map Data Exports