Company: BANFP
Filing Date: 2025-08-05
Form Type: S-3ASR
Source: 0000950170-25-102928
Chunk: 12

Company: BANCFIRST CORP /OK/
Filing Date: 2025-08-05
Form: S-3ASR
Chunk 12
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 as defined in Article 9.

Limitations on Liability and Indemnification of Directors and Officers

Our Amended and Restated Certificate of Incorporation limits the liability of our directors to the fullest extent permitted by the OGCA. The OGCA currently prohibits the elimination of personal liability for monetary damages for (1) a breach of the director’s duty of loyalty, (2) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (3) any transaction from which the director derived an improper personal benefit, or (4) acts or omissions for which the liability of a director is expressly provided by an applicable statute.

As permitted by the OGCA, our Amended and Restated Bylaws provide that:

We will indemnify our current and former directors and officers and anyone who is or was serving at our request as the director or officer of another entity, subject to limited exceptions; and

We may purchase and maintain insurance on behalf of our current or former directors and officers against any liability asserted against them and incurred by them in any such capacity, or arising out of their status as such.

We may advance expenses to our directors and officers in connection with a legal proceeding, subject to receiving an undertaking from such director or officer to repay advanced amounts if it is determined he or she is not entitled to indemnification.

### LEGAL MATTERS
Unless otherwise indicated in the applicable prospectus supplement, the validity of the securities will be passed upon for us by Crowe & Dunlevy, A Professional Corporation Oklahoma City, Oklahoma. Certain legal matters will be passed upon for any underwriters by the counsel to such underwriters specified in the applicable prospectus supplement.

### EXPERTS
The consolidated financial statements incorporated in this prospectus by reference from our Annual Report on Form 10-K for the year ended December 31, 2024, and the effectiveness of our internal control over financial reporting as of December 31, 2024, have been audited by Forvis Mazars, LLP, an independent registered public accounting firm, as stated in its report, which is incorporated herein by reference. Such financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

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BANCFIRST CORPORATION

Common Stock

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PROSPECTUS

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August 5, 2025</div>

PART II INFORMATION NOT REQUIRED IN PROSPECTUS Item 14. Other Expenses of