| Relationships | Role | Relationship Start | Relationship End |
| Petershill Offshore Lp | Parent | 9/21/2008 | |
| Petershill Pmd Qp Offshore Lp | Parent | 9/21/2008 | |
| Peg Abertis Holdings | Subsidary | 3/18/2011 |
| Relationships | Role | Relationship Start | Relationship End |
| Petershill Offshore Lp | Parent | 9/21/2008 | |
| Petershill Pmd Qp Offshore Lp | Parent | 9/21/2008 | |
| Peg Abertis Holdings | Subsidary | 3/18/2011 |