| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Advanced Directional Drilling Systems Ltd | 03179345 | 28/03/1996 | Dissolved |
| CAPRI EQUITIES SERVICES LTD | 07257359 | 18/05/2010 | Dissolved |
| D J H International Ltd | 02739316 | 12/08/1992 | Dissolved |
| Di Drill Service Ltd | 04294410 | 26/09/2001 | Dissolved |
| H3GLOBAL LTD | 04682023 | 28/02/2003 | Dissolved |
| PB100 LTD | 07056334 | 24/10/2009 | Dissolved |
| PB50 LIMITED | 07056336 | 24/10/2009 | Dissolved |
| WP 1 LIMITED | 07056467 | 25/10/2009 | Dissolved |
| WP 3 LIMITED | 07056476 | 25/10/2009 | Dissolved |
| Z H Flying Ltd | 04479509 | 28/10/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CRT PLANT LTD | 05404803 | 29/03/2005 | 03/09/2010 | Dissolved |
| Crt Heaven Maintenance Services Ltd | 06137205 | 09/05/2007 | 12/01/2010 | Dissolved |
| Di Drill Service Ltd | 04294410 | 26/09/2001 | 09/10/2001 | Dissolved |
| Drillers Mud Systems Ltd | 06709332 | 26/09/2008 | 03/11/2009 | Dissolved |
| VIOLA AM LIMITED | 07011148 | 07/09/2009 | 01/12/2011 | Dissolved |