| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRITANNIA EXPLORATION,INC | FC012031 | 01/07/1993 | Dissolved |
| GASCASH LIMITED | 02457722 | 18/01/1995 | Dissolved |
| GASCASH LIMITED | 02457722 | 09/01/1993 | Dissolved |
| Hautpas Ltd | 01137767 | 30/09/1996 | Dissolved |
| L A S M O (Corby) Ltd | 01125087 | 30/09/1996 | Dissolved |
| L A S M O (U E U K) Ltd | 02093218 | 23/12/1993 | Dissolved |
| L A S M O (U S P A R) Ltd | 02093432 | 15/02/1994 | Dissolved |
| LASMO PETROLEUM (MINERALS) LIMITED | 01073330 | 30/09/1996 | Dissolved |
| Lasmo (Tsp) Ltd | SC049025 | 30/07/1997 | Dissolved |
| Lasmo Caracas Ltd | 03378814 | 08/07/1997 | Dissolved |
| Lasmo Claymore Petroleum Ltd | SC056731 | 30/09/1996 | Dissolved |
| Lasmo Dacion Ltd | 03378818 | 08/07/1997 | Dissolved |
| Lasmo Fifi Zaitun Ltd | 02451352 | 15/02/1994 | Dissolved |
| Lasmo Shipping Ltd | 02623168 | 11/01/1993 | Dissolved |
| Lasmo Singapore Ltd | 01852008 | 25/01/1993 | Dissolved |
| Lasmo Tangerang Ltd | 02334541 | 15/02/1994 | Dissolved |
| Lasmo Venezuela Ltd | 03378827 | 08/07/1997 | Dissolved |
| Neptune (T T 0) | 01499050 | 30/09/1996 | Dissolved |
| Oil Exploration(Scotland) Ltd | SC060495 | 15/02/1994 | Dissolved |
| Oilcash Limited | 02753200 | 30/11/1992 | Dissolved |
| Oilcash Limited | 02753200 | 05/10/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSET MANAGEMENT HOLDINGS | 02476284 | 24/05/2000 | 18/07/2005 | Dissolved |
| Blackfriars Oil & Gas Ltd | 00818091 | 30/09/1996 | 01/02/1999 | Dissolved |
| COVE ENERGY LIMITED | 04994974 | 12/07/2010 | 17/08/2012 | Amber |
| ENGLISH BRIDGE UNION LIMITED(THE) | 00358588 | 19/03/2014 | 30/11/2021 | Silver |
| ENI BTC LIMITED | 01044120 | 15/02/1994 | 01/02/1999 | Amber |
| ENI MIDDLE EAST LIMITED | 03180997 | 01/04/1996 | 23/10/1996 | Amber |
| ENI UFL LIMITED | 02325373 | 15/02/1994 | 01/02/1999 | Dissolved |
| ENI UHL LIMITED | 00916179 | 29/05/1992 | 30/07/1999 | Silver |
| ENI ULT LIMITED | 00301317 | 29/05/1992 | 30/07/1999 | Silver |
| Eni Lasmo Trustee Ltd | 02507284 | 23/12/1993 | 01/09/1994 | Dissolved |
| Eni Linv Ltd | 02451354 | 15/02/1994 | 01/02/1999 | Dissolved |
| Eni Malacca Ltd | 01664303 | 05/03/1998 | 01/02/1999 | Dissolved |
| Eni Methodplan Ltd | 02642814 | 30/06/1993 | 01/02/1999 | Dissolved |
| Eni Neptune Ltd | 01198236 | 15/02/1994 | 01/02/1999 | Dissolved |
| Eni Securities Ltd | 02351633 | 15/02/1994 | 01/02/1999 | Dissolved |
| Gartmore U K Holding Co | 04003984 | 24/05/2000 | 18/07/2005 | Dissolved |
| LASMO (TSA) LIMITED | SC034216 | 30/09/1996 | 30/07/1999 | Dissolved |
| LASMO OIL (EGYPT) LIMITED | 02147928 | 15/02/1994 | 10/05/1996 | Dissolved |
| Lasmo (Massanga) Ltd | 02544203 | 23/12/1993 | 01/02/1999 | Dissolved |
| Lasmo (U D G ) Plc | 01234982 | 30/09/1996 | 01/02/1999 | Dissolved |
| Lasmo Afrique Ltd | 01431032 | 15/02/1994 | 01/02/1999 | Dissolved |
| Lasmo Kakap Ltd | 01682791 | 05/03/1998 | 01/02/1999 | Dissolved |
| Lasmo Madura Ltd | 01750351 | 05/03/1998 | 01/02/1999 | Dissolved |
| Lasmo Oil (Aden) Ltd | 02196078 | 03/04/1996 | 01/02/1999 | Dissolved |
| Lasmo Oil (Guyana) Ltd | 02147521 | 15/02/1994 | 01/02/1999 | Dissolved |
| Lasmo Sumatra Ltd | 01682796 | 15/02/1994 | 01/02/1999 | Dissolved |
| NATIONWIDE ASSET MANAGEMENT HOLDINGS | 03933354 | 24/05/2000 | 08/07/2005 | Dissolved |
| Oil Exploration (Holdings) Ltd | 01024938 | 15/02/1994 | 01/02/1999 | Dissolved |
| WOODSIDE ENERGY (N.A.) LTD | 04409473 | 04/04/2002 | 20/03/2018 | Gold |
| WOODSIDE ENERGY (UK) LIMITED | 04232374 | 23/07/2001 | 20/03/2018 | Silver |