X0609 4 2026-04-17 0000760498 BANCFIRST CORP /OK/ BANF 0002023464 Andrus Hannah false 100 N. BROADWAY AVE OKLAHOMA CITY OK 73102 true true Executive Vice President Chief Financial Officer false Common Stock 2026-04-17 4 M false 800 0 A 800 D Common Stock 134 I ESOP Restricted Stock Unit 0 2026-04-17 4 M false 800 0 D Common Stock 800 3200 D RSU with 6yr20% vesting schedule Shares vested 3-29-26 during blackout. We release them to Hannah 4-17-26 No exercise price for this type of award No exercisable date for this type of award No expiration date for this type of award /s/By POA from Hannah Andrus 2026-04-20