Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Watermark Bank | Oklahoma City, OK | 01-22-2019 | $406,986 | BK |
| Anchor D Bank | Texhoma, OK | 02-23-1906 | $395,212 | BK |
| Security State Bank of Oklahoma | Wewoka, OK | 12-05-1911 | $394,838 | BK |
| The Security National Bank of Enid | Enid, OK | 01-01-1907 | $390,280 | BK |
| FORT SILL | Lawton, OK | 01-01-1956 | $386,169 | CU |
| McCurtain County National Bank | Broken Bow, OK | 04-23-1982 | $383,093 | BK |
| The Community State Bank | Poteau, OK | 10-19-1970 | $379,768 | BK |
| ALLEGIANCE | OKLAHOMA CITY, OK | 01-01-1963 | $371,023 | CU |
| Cowboy Bank | Kremlin, OK | 05-01-1900 | $368,691 | BK |
| ALLEGIANCE | Oklahoma City, OK | 01-01-1963 | $366,233 | CU |
| Bank of Commerce | Duncan, OK | 12-16-2002 | $351,911 | BK |
| The Pauls Valley National Bank | Pauls Valley, OK | 01-01-1905 | $348,568 | BK |
| Frazer Bank | Altus, OK | 01-01-1902 | $344,926 | BK |
| Citizens Bank of Ada | Ada, OK | 02-20-1967 | $343,126 | BK |
| Sooner State Bank | Tuttle, OK | 01-01-1903 | $330,965 | BK |