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 | $370,782 | BK |
| FORT SILL | Lawton, OK | 01-01-1956 | $369,908 | CU |
| American Bank of Oklahoma | Collinsville, OK | 04-01-1998 | $364,074 | BK |
| Cowboy Bank | Kremlin, OK | 05-01-1900 | $359,198 | BK |
| McCurtain County National Bank | Broken Bow, OK | 04-23-1982 | $355,653 | BK |
| ALLEGIANCE | Oklahoma City, OK | 01-01-1963 | $350,036 | CU |
| The Community State Bank | Poteau, OK | 10-19-1970 | $345,353 | BK |
| Anchor D Bank | Texhoma, OK | 02-23-1906 | $342,930 | BK |
| Local Bank | Hulbert, OK | 12-01-1908 | $338,007 | BK |
| Bank of Commerce | Duncan, OK | 12-16-2002 | $332,760 | BK |
| BancCentral, National Association | Alva, OK | 08-11-1913 | $319,134 | BK |
| The Pauls Valley National Bank | Pauls Valley, OK | 01-01-1905 | $317,682 | BK |
| Citizens Bank and Trust Company of Ardmore | Ardmore, OK | 09-18-1978 | $315,576 | BK |
| Watermark Bank | Oklahoma City, OK | 01-22-2019 | $313,859 | BK |
| The First National Bank & Trust | Elk City, OK | 04-19-1901 | $312,667 | BK |