| Relationships | Role | Relationship Start | Relationship End |
| Cgi Private Equity Lp Llc | Parent | 7/25/2008 | 12/11/2014 |
| Metalmark Capital Partners Ii Gp, L.P. | Parent | 7/25/2008 | 12/15/2013 |
| Schafer Investor, Llc | Subsidary | 12/19/2008 | 12/11/2014 |
| Metalmark Breitburn Holdings Llc | Subsidary | 12/19/2008 | 12/11/2014 |