| 2026-08-07 | 10-Q | 10.1 | 2026 First Amendment to the BancFirst Corporation Thrift Plan. |
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| 2025-11-07 | 10-Q | 10.1 | 2025 First Amendment to the BancFirst Corporation Thrift Plan |
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| 2024-05-23 | 8-K | 10.1 | Amended and Restated BancFirst Corporation Directors' Deferred Stock Compensation Plan. |
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| 2023-05-25 | 8-K | 10.1 | BancFirst Corporation 2023 Restricted Stock Unit Plan. |
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| 2023-03-23 | 8-K | 10.3 | BancFirst Corporation Director Restricted Stock Unit Agreement |
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| 2023-03-23 | 8-K | 10.2 | BancFirst Corporation Employee Restricted Stock Unit Agreement |
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| 2023-03-23 | 8-K | 10.1 | BancFirst Corporation 2023 Restricted Stock Unit Plan |
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| 2023-02-24 | 10-K | 10.15 | 2023 First Amendment to the BancFirst Corporation Employee Stock Ownership Plan. |
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| 2023-02-24 | 10-K | 10.14 | 2023 First Amendment to the BancFirst Corporation Thrift Plan. |
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| 2022-11-04 | 10-Q | 10.12 | Adoption Agreement for McAfee & Taft Professional Corporation Non-Standardized Employee Stock Ownership Pre-Approved Plan. (filed as exhibit 10.12 to the Company's Quarterly Report on Form 10-Q for the Quarter Ended June 30 2022 and incorporated herein by reference) |
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| 2022-08-05 | 10-Q | 10.12 | Adoption Agreement for McAfee & Taft Professional Corporation Non-Standardized Employee Stock Ownership Pre-Approved Plan. |
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| 2022-08-05 | 10-Q | 10.11 | Bancfirst Corporation Employee Stock Ownership Plan Amendment to Implement Secure Act and Other Law Changes. |
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| 2022-08-05 | 10-Q | 10.10 | Amended and Restated BancFirst Corporation Non-Employee Directors' Stock Option Plan. |
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| 2022-08-05 | 10-Q | 10.9 | Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2021-08-09 | 10-Q | 10.12 | Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan. |
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| 2021-08-09 | 10-Q | 10.11 | Amended and Restated BancFirst Corporation Non-Employee Directors’ Stock Option Plan. |
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| 2021-08-09 | 10-Q | 10.10 | Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2021-06-17 | 8-K | 10.1 | Subordinated Note Purchase Agreement. |
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| 2020-12-22 | 8-K | 10.1 | Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2020-12-18 | 8-K | 10.1 | 2020 Amendment to the BancFirst Corporation Thrift Plan. |
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| 2020-08-07 | 10-Q | 10.11 | Sixteenth Amended and Restated BancFirst Corporation Stock Option Plan |
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| 2020-08-07 | 10-Q | 10.10 | Seventh Amended and Restated BancFirst Corporation Non-Employee Directors’ Stock Option Plan |
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| 2020-02-28 | 10-K | 10.11 | 2019 Amendment BancFirst Corporation Thrift Plan |
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| 2020-02-28 | 10-K | 10.10 | BancFirst Corporation Employee Stock Ownership Plan 2019 Amendment Number One |
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| 2019-08-02 | 10-Q | 10.9 | Fifteenth Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2019-08-02 | 10-Q | 10.8 | Sixth Amended and Restated BancFirst Corporation Directors’ Stock Option Plan. |
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| 2019-08-02 | 10-Q | 10.7 | Sixth Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan. |
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| 2018-09-05 | 8-K | 10.2 | First Amendment to Purchase and Sale Agreement and Escrow Instructions by and between Cotter Tower – Oklahoma, L.P. and BancFirst Corporation |
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| 2018-09-05 | 8-K | 10.1 | Purchase and Sale Agreement and Escrow Instructions by and between Cotter Tower – Oklahoma, L.P. and BancFirst Corporation |
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| 2018-02-26 | 8-K | 10.2 | BancFirst Corporation Thrift Plan 2018 Amendment Number 1. |
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| 2018-02-26 | 8-K | 10.1 | BancFirst Corporation Employee Stock Ownership Plan 2018 Amendment Number 1. |
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| 2016-08-05 | 10-Q | 10.4 | Fourteenth Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2016-08-05 | 10-Q | 10.3 | Fifth Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan. |
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| 2016-08-05 | 10-Q | 10.2 | Fifth Amended and Restated BancFirst Corporation Directors’ Stock Option Plan. |
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| 2016-05-06 | 10-Q | 10.5 | Adoption Agreement for the BancFirst Corporation Thrift Plan adopted April 21, 2016 effective January 1, 2016. |
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| 2015-05-08 | 10-Q | 10.1 | BancFirst Corporation Employee Stock Ownership and Trust Agreement adopted effective January 1, 2015. |
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| 2014-10-29 | 8-K | 10.1 | North Broadway, Oklahoma City, Oklahoma |
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| 2014-10-29 | 8-K | 10.1 | North Broadway, Oklahoma City, Oklahoma |
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| 2014-08-08 | 10-Q | 10.10 | Twelfth Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2014-08-08 | 10-Q | 10.3 | Fourth Amended and Restated BancFirst Corporation Directors’ Deferred Stock Compensation Plan. |
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| 2014-08-08 | 10-Q | 10.2 | Third Amended and Restated BancFirst Corporation Non-Employee Directors’ Stock Option Plan. |
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| 2013-08-09 | 10-Q | 10.10 | Eleventh Amended and Restated BancFirst Corporation Stock Option Plan. |
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| 2012-03-15 | 10-K | 10.10 | AMENDMENT TO THE AMENDED AND RESTATED BANCFIRST CORPORATION EMPLOYEE OWNERSHIP |
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| 2012-03-15 | 10-K | 10.9 | AMENDMENT TO THE AMENDED AND RESTATED BANCFIRST CORPORATION THRIFT PLAN |
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| 2011-03-15 | 10-K | 10.9 | AMENDMENT TO THE AMENDED AND RESTATED BANCFIRST CORP.THRIFT PLAN |
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| 2010-08-09 | 10-Q | 10.8 | AMENDED AND RESTATED BANCFIRST CORPORATION EMPLOYEE STOCK OWNERSHIP PLAN |
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| 2010-08-09 | 10-Q | 10.7 | AMENDMENT (CODE SECTION 415 COMPLIANCE) TO THE AMENDED AND RESTATED |
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| 2010-08-09 | 10-Q | 10.6 | AMENDED AND RESTATED BANCFIRST CORPORATION THRIFT PLAN ADOPTED MARCH 25, 2010 |
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| 2009-08-10 | 10-Q | 10.10 | AMENDMENT TO THE AMENDED AND RESTATED BANCFIRST CORPORATION THRIFT PLAN |
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| 2009-08-10 | 10-Q | 10.9 | AMENDMENT TO THE AMENDED AND RESTATED EMPLOYEE STOCK OWNERSHIP PLAN |
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| 2009-08-10 | 10-Q | 10.8 | THIRD AMENDED AND RESTATED DIRECTORS' DEFERRED STOCK COMPENSATION PLAN |
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| 2009-08-10 | 10-Q | 10.7 | SECOND AMENDED AND RESTATED NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN |
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| 2009-08-10 | 10-Q | 10.1 | NINTH AMENDED AND RESTATED BANCFIRST CORPORATION STOCK OPTION PLAN. |
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