| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Bancorp Of Texas, Inc. | Parent | 1/29/1988 | 11/13/1988 |
| Allied Bancshares, Inc. | Parent | 12/31/1985 | 1/28/1988 |
| Allied San Antonio Bancshares, Inc. | Parent | 12/31/1981 | 12/30/1985 |
| American Bancorp, Inc. | Parent | 4/3/1980 | 12/30/1981 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Wells Fargo Bank Texas, National Association | Buyer | 7,565,976 | Discontinued | 11/14/1988 |