| Relationships | Role | Relationship Start | Relationship End |
| Chicago Deferred Exchange Corporation | Parent | 2/1/2001 | 5/1/2007 |
| National Fuel Acquisition Corp. | Subsidary | 1/27/2003 | 2/7/2003 |
| Relationships | Role | Relationship Start | Relationship End |
| Chicago Deferred Exchange Corporation | Parent | 2/1/2001 | 5/1/2007 |
| National Fuel Acquisition Corp. | Subsidary | 1/27/2003 | 2/7/2003 |