| Relationships | Role | Relationship Start | Relationship End |
| Security Bancshares, Inc. | Parent | 12/31/1982 | 11/1/1992 |
| Security Bancshares, Inc. | Parent | 12/18/1978 | 12/30/1982 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Boatmen's First National Bank Of Oklahoma | Buyer | 1,592,266 | Discontinued | 11/2/1992 |