| Relationships | Role | Relationship Start | Relationship End |
| Mcorp Financial Inc | Parent | 10/10/1984 | 12/6/1990 |
| Mcorp | Parent | 12/30/1976 | 10/8/1984 |
| Federated Capital Corporation | Parent | 1/29/1974 | 12/29/1976 |
| Federated Texas Bancorporation, Inc. | Parent | 5/1/1973 | 1/28/1974 |
| Premier Bancshares, Inc. | Subsidary | 1/12/1993 | 7/13/1993 |
| Mtech Corpus Christi Corp | Subsidary | 8/27/1974 | 12/30/1983 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Nationsbank Of Texas, National Association | Buyer | 62,921,254 | Discontinued | 3/1/1994 | |
| Coastal Bend National Bank | Seller | 38,704 | Discontinued | 10/15/1993 | |
| New First City, Texas - Aransas Pass, National Association | Seller | 49,418 | Discontinued | 2/13/1993 | |
| Mbank Corpus Christi South, National Association | Seller | 83,426 | Discontinued | 9/23/1988 |