| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Sovereign Bank | Bank | 1 | $608.9M | 28.45% |
| 2 | BancFirst | Bank | 5 | $496.3M | 23.19% |
| 3 | First United Bank and Trust Company | Bank | 3 | $289.5M | 13.53% |
| 4 | Arvest Bank | Bank | 2 | $281.1M | 13.14% |
| 5 | Tinker Federal Credit Union | Credit union | 1 | $152.9M* | 7.15% |
| 6 | MidFirst Bank | Bank | 1 | $99.1M | 4.63% |
| 7 | Communication Federal Credit Union | Credit union | 1 | $86.0M* | 4.02% |
| 8 | Vision Bank | Bank | 1 | $49.7M | 2.32% |
| 9 | Bison Federal Credit Union | Credit union | 1 | $37.4M* | 1.75% |
| 10 | Security State Bank of Oklahoma | Bank | 1 | $22.3M | 1.04% |
| 3 more institutions, year-over-year share and branch changes with Pro →$29/mo, cancel any time. | |||||
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $2.14B | 13 | 20 | Sovereign Bank | 28.4% | 1,801 |
| 2025 | $2.07B | 13 | 20 | Sovereign Bank | 27.9% | 1,798 |
| 2024 | $1.87B | 12 | 19 | BancFirst | 24.3% | 1,777 |
| 2023 | $1.71B | 12 | 19 | BancFirst | 24.9% | 1,719 |
| 2022 | $1.64B | 12 | 19 | BancFirst | 28.9% | 1,781 |
Every institution above links to its profile — ratios, peer medians and this quarter’s change signals. Pro adds the full table, share movement and CSV export.