| Relationships | Role | Relationship Start | Relationship End |
| Southwest Bank | Parent | 12/31/1982 | 10/16/1988 |
| Southwest Bancorp | Parent | 10/31/1981 | 12/30/1982 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Southwest Bank | Buyer | 367,364 | Discontinued | 10/17/1988 |