| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Arvest Bank | Bank | 6 | $622.7M | 49.27% |
| 2 | Truity Federal Credit Union | Credit union | 2 | $209.0M* | 16.54% |
| 3 | BancFirst | Bank | 2 | $134.0M | 10.60% |
| 4 | Gateway First Bank | Bank | 1 | $69.5M | 5.50% |
| 5 | BOKF, National Association | Bank | 1 | $60.7M | 4.80% |
| 6 | Armstrong Bank | Bank | 1 | $48.8M | 3.86% |
| 7 | American Heritage Bank | Bank | 1 | $30.4M | 2.41% |
| 8 | RCB Bank | Bank | 1 | $24.5M | 1.94% |
| 9 | Union State Bank | Bank | 1 | $23.9M | 1.89% |
| 10 | Ok Federal Credit Union | Credit union | 1 | $22.1M* | 1.75% |
| 2 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 | $1.26B | 12 | 19 | Arvest Bank | 49.3% | 2,900 |
| 2025 | $1.26B | 13 | 20 | Arvest Bank | 46.9% | 2,767 |
| 2024 | $1.21B | 13 | 20 | Arvest Bank | 49.8% | 2,949 |
| 2023 | $1.30B | 13 | 20 | Arvest Bank | 45.9% | 2,861 |
| 2022 | $1.50B | 13 | 20 | Arvest Bank | 51.4% | 3,219 |
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.