| Relationships | Role | Relationship Start | Relationship End |
| Aircraft Services Corporation | Parent | 12/1/2012 | |
| Arc Terminals Joliet Holdings Llc | Subsidary | 5/14/2015 | |
| Efs Southern Star Partners, Lp | Subsidary | 10/19/2015 | |
| Efs Ssp Gp, Llc | Subsidary | 10/19/2015 | |
| Agch Investors, Llc | Subsidary | 2/4/2016 | |
| Moh Holdings Llc | Subsidary | 2/26/2016 | |
| Shiprock Midstream Llc | Subsidary | 4/8/2016 | |
| Southern Star Acquisition Corporation | Subsidary | 4/28/2015 | 11/16/2015 |