| Relationships | Role | Relationship Start | Relationship End |
| Sunwest Texas, Inc | Parent | 6/26/1995 | 7/9/1998 |
| Boatmen's Sunwest, Inc. | Parent | 1/3/1994 | 6/25/1995 |
| Sunwest Acquisition Corporation | Parent | 3/22/1988 | 1/2/1994 |
| American Southwest Bancshares, Inc. | Parent | 12/31/1984 | 3/21/1988 |
| American Southwest Bancshares, Inc. | Parent | 12/31/1983 | 12/30/1984 |
| American Southwest Bancshares, Inc. | Parent | 12/15/1982 | 12/30/1983 |
| Bbi Merchant Processing Company, Llc | Subsidary | 10/18/1997 | 7/9/1998 |
| North Stanton Corp. | Subsidary | 12/17/1982 | 12/30/1984 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Of America, National Association | Buyer | 322,913,000 | Pooling of Interests | Discontinued | 7/10/1998 |
| New First City, Texas - El Paso, National Association | Seller | 338,343 | Discontinued | 3/6/1993 | |
| Sunwest Bank Of El Paso-East National Association | Seller | 44,769 | Discontinued | 1/7/1989 |