| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Arvest Bank | Bank | 6 | $591.4M | 47.85% |
| 2 | Truity Federal Credit Union | Credit union | 2 | $254.5M* | 20.59% |
| 3 | BancFirst | Bank | 1 | $117.1M | 9.47% |
| 4 | BOKF, National Association | Bank | 1 | $59.2M | 4.79% |
| 5 | Gateway First Bank | Bank | 1 | $46.6M | 3.77% |
| 6 | Armstrong Bank | Bank | 2 | $46.5M | 3.76% |
| 7 | American Heritage Bank | Bank | 1 | $31.4M | 2.54% |
| 8 | RCB Bank | Bank | 1 | $26.7M | 2.16% |
| 9 | Union State Bank | Bank | 1 | $26.2M | 2.12% |
| 10 | Ok Federal Credit Union | Credit union | 1 | $21.3M* | 1.72% |
| 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 |
|---|---|---|---|---|---|---|
| 2025 | $1.24B | 12 | 19 | Arvest Bank | 47.9% | 2,874 |
| 2024 | $1.19B | 12 | 19 | Arvest Bank | 50.6% | 3,050 |
| 2023 | $1.28B | 12 | 19 | Arvest Bank | 46.8% | 2,961 |
| 2022 | $1.47B | 12 | 19 | Arvest Bank | 52.4% | 3,327 |
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.