| Relationships | Role | Relationship Start | Relationship End |
| Morgan Stanley Infrastructure Inc. | Parent | 11/1/2011 | |
| North Haven Offshore Infrastructure Partners A L.P. | Parent | 9/23/2008 | |
| Morgan Stanley Offshore Infrastructure Gp Ltd. | Parent | 9/23/2008 | 10/31/2011 |
| North Haven Infrastructure Partners A Sub Ii L.P. | Subsidary | 8/26/2013 |