| Relationships | Role | Relationship Start | Relationship End |
| Bokf, National Association | Parent | 6/30/2007 | 12/31/2011 |
| Bokf, National Association | Parent | 4/1/1997 | 6/29/2007 |
| Bancoklahoma Trust Company | Parent | 7/21/1993 | 3/31/1997 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bokf, National Association | Buyer | 32,669,391 | Pooling of Interests | Discontinued | 1/1/2012 |