Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Security State Bank of Oklahoma | Wewoka, OK | 12-05-1911 | $386,872 | BK |
| FORT SILL | Lawton, OK | 01-01-1956 | $385,302 | CU |
| American Bank of Oklahoma | Collinsville, OK | 04-01-1998 | $380,946 | BK |
| ALLEGIANCE | OKLAHOMA CITY, OK | 01-01-1963 | $371,023 | CU |
| Anchor D Bank | Texhoma, OK | 02-23-1906 | $366,593 | BK |
| McCurtain County National Bank | Broken Bow, OK | 04-23-1982 | $365,626 | BK |
| ALLEGIANCE | Oklahoma City, OK | 01-01-1963 | $358,604 | CU |
| The Community State Bank | Poteau, OK | 10-19-1970 | $358,345 | BK |
| Bank of Commerce | Duncan, OK | 12-16-2002 | $356,859 | BK |
| Watermark Bank | Oklahoma City, OK | 01-22-2019 | $355,500 | BK |
| Frazer Bank | Altus, OK | 01-01-1902 | $347,839 | BK |
| The Pauls Valley National Bank | Pauls Valley, OK | 01-01-1905 | $345,036 | BK |
| Cowboy Bank | Kremlin, OK | 05-01-1900 | $337,079 | BK |
| American Bank and Trust Company | Tulsa, OK | 11-05-1971 | $329,938 | BK |
| Citizens Bank of Ada | Ada, OK | 02-20-1967 | $325,528 | BK |