Supervisory Condition Letter 2025-01 — BOKF, N.A., Tulsa, Oklahoma – Termination of Supervisory Condition Imposed in Writing

Washington, DC 20219 Supervisory Condition Letter #2025-01 February 2025 October 17, 2024 Audit Committee of the Board BOKF, N.A. One Williams Center Tulsa, Oklahoma 74192 Subject: Termination of Supervisory Condition Imposed in Writing Members of the Committee: This letter is to inform you that the Office of the Comptroller of the Currency is terminating the supervisory condition imposed in writing dated December 20, 2019, which required BOKF to apply a multiplier of “4” to its internal value-at-risk (VaR) model and stressed VaR to calculate general market risk capital requirements for covered positions pursuant to 12 CFR Part 3, subpart F. The condition is no longer warranted. Should you have any questions concerning this matter, please contact Examiner-in-Charge [ ] [ ] at [ ] or Assistant Deputy Comptroller [ ] at [ ]. Sincerely, //s// Digitally Signed, Dated: 2024.10.17

Joel Denkert Deputy Comptroller Midsize and Community Bank Supervision cc: Stacy Kymes, President and Chief Executive Officer Marty Grunst, Chief Financial Officer Mindy Mahaney, Chief Risk Officer Jo Ann Stall, Chief Compliance Officer Becky Keesling, Chief Auditor Caleb Bigham, Treasurer Tony Atanasoff, Executive Director, Market Risk Confidentiality Statement This document is CONTROLLED UNCLASSIFED INFORMATION (CUI). It is to be controlled, stored, handled, transmitted, distributed, and disposed of in accordance with established OCC policy relating to CUI. This information must not be distributed beyond the original addressee(s) without prior authorization of the originator. Unauthorized disclosure of the contents of this report, including component and composite ratings, is generally prohibited. Exceptions to the general prohibition on disclosure are described in OCC regulations, 12 CFR 4.37(b)(2). Any other disclosure of this document or its contents without the OCC's prior approval is a violation of 12 CFR 4.37(b) and subject to criminal penalties in 18 USC 641 for conversion of U.S. Government property.