Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Mabrey Bank | Bixby, OK | 01-26-1924 | $1,747,544 | BK |
| Great Plains National Bank | Elk City, OK | 07-17-1996 | $1,602,092 | BK |
| International Bank of Commerce | Oklahoma City, OK | 01-01-2017 | $1,535,782 | BK |
| Regent Bank | Tulsa, OK | 01-01-1898 | $1,531,004 | BK |
| WEOKIE | Oklahoma City, OK | 01-01-1969 | $1,508,427 | CU |
| American Heritage Bank | Sapulpa, OK | 06-15-1905 | $1,479,870 | BK |
| Liberty National Bank | Lawton, OK | 01-01-1902 | $1,223,329 | BK |
| Blue Sky Bank | Pawhuska, OK | 11-23-1905 | $1,139,463 | BK |
| First Oklahoma Bank | Jenks, OK | 01-01-1923 | $1,099,647 | BK |
| TRUITY | Bartlesville, OK | 01-01-1939 | $1,097,279 | CU |
| WEOKIE | Oklahoma City, OK | 01-01-1969 | $1,083,929 | CU |
| The First National Bank and Trust Co., Chickasha, Oklahoma | Chickasha, OK | 08-21-1892 | $996,327 | BK |
| WESTREET | Tulsa, OK | 01-01-1943 | $989,308 | CU |
| Kirkpatrick Bank | Edmond, OK | 03-23-1970 | $970,616 | BK |
| Firstar Bank | Sallisaw, OK | 11-19-1964 | $969,001 | BK |