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Billionaire Index

A daily ranking of the world's richest people

Last updated: November 11, 2026 · $11.70T tracked

Methodology

No. 183United States

George Kaiser

Oil & gas, banking · Tulsa, Oklahoma

Net worth

$15.9B

Today

+$33M+0.21%

Past month

+$430M+2.77%

As of Nov 11, 2026, 1:50 PM EST

George Kaiser took over his family's Kaiser-Francis Oil Company in the 1960s. Kaiser bought the Bank of Oklahoma in 1991 for $60 million; he owns about 63% of the publicly-traded bank. He also owns 72% of publicly traded LNG firm Excelerate Energy as well as stakes in publicly traded fintech firm Alkami and the Oklahoma City Thunder. In the late 1930s, Kaiser's parents fled Nazi Germany and settled in Tulsa, Oklahoma in 1940. He was the first American citizen in his family. Kaiser has paid out more than $2.5 billion from his George Kaiser Family Foundation, which focuses on early childhood education and economic development.

Net worth over time

+2.77%+$430M over the past month
$16B$16B$15B
Oct 12Nov 11

Principal holdings

5 positions
CompanyShareValue

Private and other holdings

46.5%$7.4B

BOK Financial Corp.

NASDAQ: BOKF

31.2%$5.0B

Excelerate Energy

NYSE: EE

19.3%$3.1B

Alkami Technology

NASDAQ: ALKT

1.9%$294M

Stepstone Group

NASDAQ: STEP

1.1%$180M

Also known for

  • In 2018, Kaiser opened The Gathering Place, a 66-acre park in Tulsa that's the largest public park in the country built with private funds.
“Those who have won the ovarian lottery by being born in an advanced society to loving parents have a special obligation to help restore the American Dream.”