| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRITANNIA EXPLORATION,INC | FC012031 | 14/08/1990 | Dissolved |
| Lasmo (W P) Inc | FC005626 | 14/08/1990 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ENI BTC LIMITED | 01044120 | 08/05/1992 | 13/11/1992 | Amber |
| ENI INDONESIA LIMITED | 02334535 | 08/05/1992 | 13/11/1992 | Not Trading |
| ENI INTERNATIONAL LIMITED | 01431033 | 08/05/1992 | 13/11/1992 | Dissolved |
| ENI LNS LIMITED | 00970280 | 08/05/1992 | 13/11/1992 | Not Trading |
| ENI OIL ALGERIA LIMITED | 02274210 | 08/05/1992 | 13/11/1992 | Gold |
| Eni International Exploration Ltd | 02451388 | 08/05/1992 | 13/11/1992 | Dissolved |
| Eni Linv Ltd | 02451354 | 08/05/1992 | 13/11/1992 | Dissolved |
| Eni Malacca Ltd | 01664303 | 08/05/1992 | 13/11/1992 | Dissolved |
| Eni Neptune Ltd | 01198236 | 08/05/1992 | 13/11/1992 | Dissolved |
| Eni Overseas Holdings Ltd | 01431776 | 08/05/1992 | 13/11/1992 | Dissolved |
| LASMO OIL (EGYPT) LIMITED | 02147928 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo (Massanga) Ltd | 02544203 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Afrique Ltd | 01431032 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Cumi-Cumi Ltd | 02544269 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Fifi Zaitun Ltd | 02451352 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Grand Maghreb Ltd | 02466698 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Kakap Ltd | 01682791 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Madura Ltd | 01750351 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Oil (Aden) Ltd | 02196078 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Oil (Guyana) Ltd | 02147521 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Oil (Trinidad and Tobago) Ltd | 02397180 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Shipping Ltd | 02623168 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Singapore Ltd | 01852008 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Sumatra Ltd | 01682796 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Tangerang Ltd | 02334541 | 08/05/1992 | 13/11/1992 | Dissolved |
| Lasmo Tonkin Ltd | 02369773 | 08/05/1992 | 13/11/1992 | Dissolved |
| Oil Exploration (Holdings) Ltd | 01024938 | 08/05/1992 | 13/11/1992 | Dissolved |
| Oil Exploration Ltd | 02397293 | 08/05/1992 | 13/11/1992 | Dissolved |
| Oil Exploration(Scotland) Ltd | SC060495 | 10/11/1988 | 13/11/1992 | Dissolved |
| PERENCO OIL AND GAS COLOMBIA LIMITED | 01789505 | 08/05/1992 | 13/11/1992 | Gold |
| PRIME PAKISTAN LIMITED | 00151940 | 08/05/1992 | 13/11/1992 | Silver |
| WOODSIDE PRIVATE ROAD LIMITED | 00643136 | 13/03/2004 | 31/07/2017 | Silver |
| WOODSIDE PRIVATE ROAD LIMITED | 00643136 | 08/07/1996 | 31/08/2022 | Silver |