| Relationships | Role | Relationship Start | Relationship End |
| Western Bancorporation, Inc. | Parent | 5/31/1983 | 11/17/1986 |
| Port City Bancshares, Inc. | Parent | 12/31/1982 | 5/30/1983 |
| Port City Bancshares, Inc. | Parent | 1/22/1980 | 12/30/1982 |
| Texas Gulf Industries, Inc. | Parent | 12/31/1970 | 1/31/1973 |
| Texas Gulf Industries, Inc. | Parent | 11/8/1968 | 12/30/1970 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Prime Bank | Buyer | 1,350,702 | Failure | 1/29/1988 |