Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Sooner State Bank | Tuttle, OK | 01-01-1903 | $320,550 | BK |
| Citizens Bank and Trust Company of Ardmore | Ardmore, OK | 09-18-1978 | $318,713 | BK |
| The Stock Exchange Bank | Woodward, OK | 01-03-1903 | $309,049 | BK |
| American Bank and Trust Company | Tulsa, OK | 11-05-1971 | $306,591 | BK |
| The First National Bank & Trust | Elk City, OK | 04-19-1901 | $305,441 | BK |
| First Bethany Bank & Trust | Bethany, OK | 01-01-1923 | $298,198 | BK |
| Patrons Bank, National Association | Okmulgee, OK | 04-02-1917 | $288,528 | BK |
| McClain Bank | Purcell, OK | 03-08-1922 | $285,498 | BK |
| VALOR BANK | Edmond, OK | 06-01-1930 | $284,392 | BK |
| ENERGY ONE | Tulsa, OK | 01-01-1935 | $281,656 | CU |
| The Payne County Bank | Perkins, OK | 01-08-1898 | $275,153 | BK |
| Security State Bank | Cheyenne, OK | 06-22-1912 | $267,752 | BK |
| The Bankers Bank | Oklahoma City, OK | 05-28-1986 | $266,592 | BK |
| The Idabel National Bank | Idabel, OK | 02-14-1921 | $256,606 | BK |
| RED CROWN | Tulsa, OK | 01-01-1938 | $255,398 | CU |