| Relationships | Role | Relationship Start | Relationship End |
| Bank Of Montana System | Parent | 12/31/1977 | 8/31/1992 |
| Bank Of Montana System | Parent | 12/31/1976 | 12/30/1977 |
| Bank Of Montana System | Parent | 5/9/1956 | 12/30/1976 |
| Bms Services Corporation | Subsidary | 7/15/1987 | 8/31/1992 |
| Acquisitions & Mergers | Role | Assets | Acct Method | Type | Transaction Date |
| Bank Of Montana, National Association | Buyer | 384,948 | Discontinued | 9/1/1992 |