| Relationships | Role | Relationship Start | Relationship End |
| Jpmp Global Investors, L.P. | Parent | 11/2/2001 | |
| J.P. Morgan Partners Global Investors (Selldown) Ii-B, L.P. | Subsidary | 2/14/2006 | |
| J.P. Morgan Partners Global Investors (Selldown) Ii-A, L.P. | Subsidary | 2/14/2006 | |
| Jpmp Vetco L.P. | Subsidary | 7/7/2004 | 12/31/2009 |