| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Bancorp | Parent | 12/31/1981 | 6/30/1991 |
| First Interstate Bancorp | Parent | 3/31/1978 | 12/30/1981 |
| First Interstate Bancorp | Parent | 3/31/1965 | 3/30/1978 |
| First Interstate Bancorp | Parent | 7/1/1958 | 3/30/1965 |
| First Interstate Treasury Services, Ltd. | Subsidary | 12/31/1982 | 9/29/1985 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| First Interstate Bank Of Wyoming, National Association | Buyer | 312,012 | Discontinued | 7/1/1991 |