| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CAIRN ENERGY EXPLORATION (BANGLADESH) LIMITED | SC254665 | 26/07/2004 | Dissolved |
| CAIRN ENERGY LUMBINI LIMITED | SC255292 | 04/09/2003 | Dissolved |
| CAIRN ENERGY NEPAL HOLDINGS LIMITED | SC255277 | 03/09/2003 | Dissolved |
| CAIRN EXPLORATION (NO.1) LIMITED | SC284623 | 11/05/2005 | Dissolved |
| CAPRICORN EXPLORATION LIMITED | SC307662 | 29/08/2006 | Dissolved |
| Cairn Energy Assets Ltd | SC222505 | 24/08/2001 | Dissolved |
| Cairn Energy Management Ltd | SC082241 | 20/10/1998 | Dissolved |
| Cairn Energy North Sea Ltd | 01181517 | 20/10/1998 | Dissolved |
| Cairn Exploration (No.10) Ltd | SC285066 | 08/07/2005 | Dissolved |
| Cairn Exploration (No.11) Ltd | SC285068 | 08/07/2005 | Dissolved |
| Cairn Exploration (No.3) Ltd | SC284625 | 11/05/2005 | Dissolved |
| Cairn Exploration (No.5) Ltd | SC284627 | 11/05/2005 | Dissolved |
| Cairn Exploration (No.8) Ltd | SC285063 | 08/07/2005 | Dissolved |
| Cairn Exploration (No.9) Ltd | SC285065 | 08/07/2005 | Dissolved |
| Cairn Oil Ltd | SC091472 | 20/10/1998 | Dissolved |
| Capricorn Kg Exploration 1 Ltd | SC307672 | 29/08/2006 | Dissolved |
| Capricorn Nec Exploration 1 Ltd | SC307664 | 29/08/2006 | Dissolved |
| Capricorn Nec Exploration 2 Ltd | SC307666 | 29/08/2006 | Dissolved |
| Capricorn Nec Exploration 3 Ltd | SC307669 | 29/08/2006 | Dissolved |
| Capricorn Nec Exploration 4 Ltd | SC307671 | 29/08/2006 | Dissolved |
| Capricorn Pa Exploration 2 Ltd | SC307663 | 29/08/2006 | Dissolved |
| MEDOIL PLC | 05220759 | 10/10/2007 | Dissolved |
| PLECTRUM OIL & GAS LIMITED | 05303276 | 10/10/2007 | Dissolved |
| PLECTRUM OIL LIMITED | 05299267 | 10/10/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAIRN ENERGY DISCOVERY LIMITED | SC235659 | 20/08/2002 | 03/04/2007 | Dissolved |
| CAIRN ENERGY HOLDINGS LIMITED | SC169153 | 14/10/1996 | 03/04/2007 | Dissolved |
| CAIRN ENERGY HYDROCARBONS LIMITED | SC172470 | 14/07/1997 | 03/04/2007 | Gold |
| CAIRN EXPLORATION (NO.2) LIMITED | SC284624 | 11/05/2005 | 03/04/2007 | Dissolved |
| CAIRN EXPLORATION (NO.4) LIMITED | SC284626 | 11/05/2005 | 03/04/2007 | Dissolved |
| CAIRN EXPLORATION (NO.6) LIMITED | SC284960 | 18/05/2005 | 03/04/2007 | Dissolved |
| CAIRN EXPLORATION (NO.7) LIMITED | SC284961 | 18/05/2005 | 03/04/2007 | Dissolved |
| CAIRN PETROLEUM INDIA LIMITED | SC235033 | 07/08/2002 | 03/04/2007 | Dissolved |
| CAPRICORN ENERGY PLC | SC226712 | 13/11/2002 | 01/12/2020 | Silver |
| CAPRICORN OIL LIMITED | SC301223 | 24/04/2006 | 01/12/2020 | Amber |
| PLECTRUM PETROLEUM LIMITED | 05377234 | 10/10/2007 | 09/10/2008 | Dissolved |
| SANTOS BANGLADESH LIMITED | SC048610 | 20/10/1998 | 25/10/2007 | Silver |
| SANTOS SANGU FIELD LIMITED | SC254664 | 26/07/2004 | 17/12/2010 | Bronze |