| Relationships | Role | Relationship Start | Relationship End |
| Gs Capital Partners Vi Offshore, L.P. | Parent | 9/21/2008 | |
| Gscp Vi Offshore Txu Holdings Cayman, L.P. | Subsidary | 9/21/2008 |
| Relationships | Role | Relationship Start | Relationship End |
| Gs Capital Partners Vi Offshore, L.P. | Parent | 9/21/2008 | |
| Gscp Vi Offshore Txu Holdings Cayman, L.P. | Subsidary | 9/21/2008 |