| Relationships | Role | Relationship Start | Relationship End |
| Plainscapital Bank | Parent | 6/30/2007 | 6/30/2011 |
| Plainscapital Bank | Parent | 10/22/1994 | 6/29/2007 |
| Plainscapital Corporation | Parent | 4/1/1994 | 10/21/1994 |
| Plains Corporation, The | Parent | 11/22/1989 | 3/31/1994 |
| Plains Corporation, The | Parent | 6/30/1982 | 11/21/1989 |