| # | Institution | Type | Branches | Deposits | Share |
|---|---|---|---|---|---|
| 1 | Great Plains National Bank | Bank | 3 | $352.8M | 32.82% |
| 2 | The First National Bank & Trust | Bank | 3 | $265.0M | 24.65% |
| 3 | Bank of Western Oklahoma | Bank | 1 | $166.7M | 15.51% |
| 4 | InterBank | Bank | 2 | $149.0M | 13.86% |
| 5 | Legacy Bank | Bank | 1 | $62.9M | 5.85% |
| 6 | Endurance Federal Credit Union | Credit union | 1 | $42.1M* | 3.92% |
| 7 | First Bank | Bank | 1 | $36.5M | 3.40% |
* Credit-union deposits are estimated (June total shares spread evenly across branches).
| Year | Deposits | Institutions | Branches | Leader | Top share | HHI |
|---|---|---|---|---|---|---|
| 2026 | $1.08B | 7 | 12 | Great Plains National Bank | 32.8% | 2,179 |
| 2025 | $1.08B | 7 | 12 | Great Plains National Bank | 31.8% | 2,143 |
| 2024 | $1.05B | 7 | 12 | Great Plains National Bank | 31.7% | 2,182 |
| 2023 | $991.7M | 7 | 12 | Great Plains National Bank | 30.4% | 2,139 |
| 2022 | $1.01B | 7 | 12 | Great Plains National Bank | 29.6% | 2,149 |
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.