| Relationships | Role | Relationship Start | Relationship End |
| Morgan Stanley Infrastructure Ii Inc. | Parent | 8/14/2014 | |
| Infrastructure Co-Investment Partners Ii Lp | Parent | 11/4/2014 | |
| North Haven Infrastructure Partners Ii Us Investments L.P. | Parent | 8/14/2014 | |
| Buffalo 2014, Llc | Parent | 11/4/2014 |