| Relationships | Role | Relationship Start | Relationship End |
| Houston Bancshares Inc | Parent | 12/31/1981 | 4/1/1987 |
| Houston Bancshares Inc | Parent | 11/10/1980 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Banctexas Houston, National Association | Buyer | 175,653 | Discontinued | 4/2/1987 |