| Relationships | Role | Relationship Start | Relationship End |
| Sbbc Corporation | Parent | 11/14/1985 | 6/10/1993 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Amarillo National Bank | Buyer | 3,828,448 | Failure | 6/11/1993 | |
| Security National Bank | Seller | 21,699 | Discontinued | 10/24/1988 |