| Relationships | Role | Relationship Start | Relationship End |
| The First National Bank And Trust Company Of Oklahoma City | Parent | 12/31/1977 | 7/14/1986 |
| First Oklahoma Investment Corporation | Parent | 12/31/1970 | 12/30/1977 |
| G.H.F. Agency, Inc. | Subsidary | 11/1/1976 | 7/14/1986 |
| First Oklahoma Insurance Agency, Inc. | Subsidary | 12/31/1970 | 11/21/1973 |