| Relationships | Role | Relationship Start | Relationship End |
| Rreef North American Infrastructure Fund A, L.P. | Parent | 6/30/2008 | 7/22/2014 |
| Prince Rupert Luxembourg S.A.R.L. | Subsidary | 6/30/2008 | 7/22/2014 |
| Relationships | Role | Relationship Start | Relationship End |
| Rreef North American Infrastructure Fund A, L.P. | Parent | 6/30/2008 | 7/22/2014 |
| Prince Rupert Luxembourg S.A.R.L. | Subsidary | 6/30/2008 | 7/22/2014 |