| Relationships | Role | Relationship Start | Relationship End |
| Ms Energy Partners Gp Lp | Parent | 9/19/2014 | |
| Nhecf Xri Holding Llc | Subsidary | 8/3/2016 | |
| Nhecf Bryan Holding Llc | Subsidary | 7/21/2016 |
| Relationships | Role | Relationship Start | Relationship End |
| Ms Energy Partners Gp Lp | Parent | 9/19/2014 | |
| Nhecf Xri Holding Llc | Subsidary | 8/3/2016 | |
| Nhecf Bryan Holding Llc | Subsidary | 7/21/2016 |