BOK FINANCIAL CORP
BOK Financial Corporation — pronounced as letters, "B-O-K" — is a financial services holding company headquartered in Tulsa, Oklahoma. Offering a full complement of retail and commercial banking products and services across the American Midwest and Southwest, the company is one of the 50 largest financial services firms in the U.S., and the largest in Oklahoma.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Business sectors
- bank [1]
- Company / filing name
- BOK FINANCIAL CORP [2]
- Headquarters location
- Tulsa [1]
- Official website
- https://investor.bokf.com/; http://www.bokf.com [1]
- ISIN (reported securities)
- US05561Q2012 [1]
- CIK
- 875357 [2]
- Country in background record
- United States [1]
- Symbols / exchanges
- BOKF (Nasdaq) [2]
Company positioning and business
BOK Financial Corporation — pronounced as letters, "B-O-K" — is a financial services holding company headquartered in Tulsa, Oklahoma. Offering a full complement of retail and commercial banking products and services across the American Midwest and Southwest, the company is one of the 50 largest financial services firms in the U.S., and the largest in Oklahoma. [3]
The company's banking subsidiary, BOKF, NA, operates under the brands Bank of Oklahoma, Bank of Texas, and Bank of Albuquerque, and it operates as BOK Financial in Arizona, Arkansas, Colorado, Kansas, and Missouri. It also operates ATM and debit card processor TransFund, Cavanal Hill Investment Management, BOK Financial Securities, BOK Financial Advisors, BOK Financial Insurance, and BOK Financial Asset Management. [3]
The company is more than 50% owned by George Kaiser, who acquired the bank in 1991 from the FDIC. Known for its energy roots, as of June 30, 2021, 14% of its loan portfolio was to borrowers in the petroleum industry. [3]
Background text: Wikipedia contributors, BOK Financial Corporation. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
Listed securities: BOKF (Nasdaq). Multiple symbols may represent different share classes or securities of the same registrant. [2]
Financial results and regulatory disclosures
No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]
Related entities and concepts
Frequently asked questions
Where is the headquarters of BOK FINANCIAL CORP?
Headquarters location: Tulsa. The linked source provides the background record. [1]
Which business sectors are recorded for BOK FINANCIAL CORP?
Business sectors: bank. The linked source provides the background record. [1]
Sources and review dates
- Wikidata — company background record (CC0) ↗
- Company identity and profile data ↗
- Wikipedia contributors — BOK Financial Corporation (CC BY-SA 4.0) ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.