| Relationships | Role | Relationship Start | Relationship End |
| Citigroup Employee Fund Of Funds (Master Fund) I, Lp | Parent | 2/1/2005 | 5/23/2011 |
| Citigroup Capital Partners I (Us-Uk), Lp | Parent | 2/1/2005 | 5/23/2011 |
| Citigroup Capital Partners I (De-Uk), Lp | Parent | 2/1/2005 | 5/23/2011 |
| Citigroup Capital Partners I (Cayman), L.P. | Parent | 2/1/2005 | 5/23/2011 |
| Citigroup Capital Partners I Energy, Llc | Subsidary | 2/1/2005 | 5/23/2011 |