| Relationships | Role | Relationship Start | Relationship End |
| Sunwest Acquisition Corporation | Parent | 3/22/1988 | 1/5/1989 |
| American Southwest Bancshares, Inc. | Parent | 9/1/1983 | 3/21/1988 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Sunwest Bank Of El Paso, National Association | Buyer | 634,955 | Discontinued | 1/7/1989 |