| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Bancorp Of Texas, Inc. | Parent | 1/29/1988 | 11/13/1988 |
| Allied Bancshares, Inc. | Parent | 4/29/1983 | 1/28/1988 |
| Citizens Financial Corporation | Parent | 6/30/1982 | 4/28/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Wells Fargo Bank Texas, National Association | Buyer | 7,565,976 | Discontinued | 11/14/1988 | |
| Allied Bank Beaumont | Seller | 40,965 | Discontinued | 4/30/1983 |