| Relationships | Role | Relationship Start | Relationship End |
| Broad Street Energy Advisors, L.L.C. | Parent | 5/21/2012 | |
| Gs Wyvern Holdings Limited | Subsidary | 6/30/2013 | |
| Saint Investment Holdings | Subsidary | 1/7/2014 | |
| New Energy I S.A R.L. | Subsidary | 2/20/2014 | |
| Serafina Logistics Ii, L.L.C. | Subsidary | 2/9/2015 | |
| Energy Servicesco Cayman L.P. | Subsidary | 3/13/2015 | |
| Balius Cayman, L.P. | Subsidary | 2/26/2016 |