| Relationships | Role | Relationship Start | Relationship End |
| Greenwood Properties Corp. | Parent | 6/30/2008 | 3/31/2011 |
| Greenwood Properties Corp. | Parent | 11/30/2007 | 6/29/2008 |
| Rreef North American Infrastructure Fund A, L.P. | Subsidary | 11/30/2007 | 3/31/2011 |
| Rreef North American Infrastructure Fund B, L.P. | Subsidary | 11/30/2007 | 3/31/2011 |