Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Old Glory Bank | Elmore City, OK | 01-01-1903 | $257,422 | BK |
| First Security Bank and Trust Company | Oklahoma City, OK | 04-06-1951 | $255,112 | BK |
| RED CROWN | Tulsa, OK | 01-01-1938 | $254,498 | CU |
| The Idabel National Bank | Idabel, OK | 02-14-1921 | $253,631 | BK |
| YNB | Yukon, OK | 04-19-1912 | $248,889 | BK |
| First Bank & Trust Company | Perry, OK | 02-21-1934 | $245,109 | BK |
| Method Bank | Wyandotte, OK | 09-27-1902 | $244,313 | BK |
| Bank of Grand Lake | Grove, OK | 06-09-2005 | $235,548 | BK |
| First Texoma National Bank | Durant, OK | 07-08-1898 | $217,575 | BK |
| OKUNITY | Stillwater, OK | 01-01-1968 | $213,960 | CU |
| High Plains Bank | Okeene, OK | 02-11-1930 | $211,688 | BK |
| Oklahoma Bank and Trust Company | Clinton, OK | 03-02-1908 | $208,751 | BK |
| The First National Bank and Trust Company of Miami | Miami, OK | 01-01-1900 | $207,110 | BK |
| U. S. EMPLOYEES O. C. | OKLAHOMA CITY, OK | 01-01-1938 | $202,824 | CU |
| First Enterprise Bank | Oklahoma City, OK | 01-01-1907 | $197,883 | BK |