| Relationships | Role | Relationship Start | Relationship End |
| Schroder Wertheim, Inc. | Parent | 12/29/2000 | 4/30/2001 |
| Schroder & Co. Inc. | Parent | 5/1/2000 | 12/28/2000 |
| Tobago Production Investors, Llc | Subsidary | 5/1/2000 | 4/30/2001 |
| Relationships | Role | Relationship Start | Relationship End |
| Schroder Wertheim, Inc. | Parent | 12/29/2000 | 4/30/2001 |
| Schroder & Co. Inc. | Parent | 5/1/2000 | 12/28/2000 |
| Tobago Production Investors, Llc | Subsidary | 5/1/2000 | 4/30/2001 |