| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Bancsystem, Inc. | Parent | 8/13/1985 | 3/25/1996 |
| Billings 401 Joint Venture | Subsidary | 4/29/1994 | 3/25/1996 |
| Billings 401 Joint Venture | Subsidary | 8/13/1985 | 4/28/1994 |
| Relationships | Role | Relationship Start | Relationship End |
| First Interstate Bancsystem, Inc. | Parent | 8/13/1985 | 3/25/1996 |
| Billings 401 Joint Venture | Subsidary | 4/29/1994 | 3/25/1996 |
| Billings 401 Joint Venture | Subsidary | 8/13/1985 | 4/28/1994 |