| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BURREN ENERGY INDIA LIMITED | 05319270 | 24/03/2022 | Gold |
| BURREN ENERGY PLC | 03492720 | 24/03/2022 | Gold |
| ENI AMBALAT LIMITED | 03968980 | 24/03/2022 | Not Trading |
| ENI ARGUNI I LIMITED | 07683960 | 24/03/2022 | Not Trading |
| ENI AUSTRALIA LIMITED | 01020949 | 24/03/2022 | Amber |
| ENI BTC LIMITED | 01044120 | 24/03/2022 | Amber |
| ENI BUKAT LIMITED | 03856870 | 24/03/2022 | Not Trading |
| ENI CBM LIMITED | 07036327 | 24/03/2022 | Gold |
| ENI EAST GANAL LIMITED | 11409270 | 24/03/2022 | Not Trading |
| ENI EAST SEPINGGAN LIMITED | 08102459 | 24/03/2022 | Not Trading |
| ENI GANAL LIMITED | 03771954 | 24/03/2022 | Not Trading |
| ENI HEWETT LIMITED | SC090159 | 24/03/2022 | Silver |
| ENI IN AMENAS LIMITED | SC135813 | 28/02/2023 | Bronze |
| ENI INDIA LIMITED | 02735371 | 24/03/2022 | Amber |
| ENI INDONESIA LIMITED | 02334535 | 24/03/2022 | Not Trading |
| ENI INVESTMENTS PLC | 04126448 | 24/03/2022 | Gold |
| ENI IS EXPLORATION LIMITED | 00972944 | 28/02/2023 | One Red Flag |
| ENI JPDA 03-13 LIMITED | 02664257 | 24/03/2022 | Silver |
| ENI KRUENG MANE LIMITED | 03562003 | 24/03/2022 | Not Trading |
| ENI LASMO PLC | 01008965 | 24/03/2022 | Gold |
| ENI LIVERPOOL BAY OPERATING COMPANY LIMITED | 01003825 | 24/03/2022 | Not Trading |
| ENI LNS LIMITED | 00970280 | 24/03/2022 | Not Trading |
| ENI MOZAMBIQUE ENGINEERING LIMITED | 09104675 | 24/03/2022 | Dissolved |
| ENI NORTH GANAL LIMITED | 07814541 | 24/03/2022 | Not Trading |
| ENI OIL ALGERIA LIMITED | 02274210 | 24/03/2022 | Silver |
| ENI PERI MAHAKAM LIMITED | 14801801 | 14/04/2023 | Not Trading |
| ENI RAPAK LIMITED | 03771987 | 24/03/2022 | Not Trading |
| ENI TNS LIMITED | SC055200 | 24/03/2022 | Not Trading |
| ENI UHL LIMITED | 00916179 | 24/03/2022 | Silver |
| ENI UK HOLDING PLC | 06428648 | 24/03/2022 | Silver |
| ENI ULT LIMITED | 00301317 | 24/03/2022 | Silver |
| ENI ULX LIMITED | 00936223 | 24/03/2022 | Silver |
| ENI WEST GANAL LIMITED | 12227735 | 24/03/2022 | Not Trading |
| ENI WEST TIMOR LIMITED | 06606325 | 24/03/2022 | Not Trading |
| ENI YEMEN LIMITED | 05567365 | 24/03/2022 | Gold |
| LIVERPOOL BAY LIMITED | 08555007 | 24/03/2022 | Dissolved |
| OIL SPILL RESPONSE LIMITED | 01808594 | 08/12/2022 | Silver |
| VIC CBM LIMITED | 07079191 | 24/03/2022 | Amber |
| VIRGINIA INDONESIA CO. CBM LIMITED | 07079220 | 24/03/2022 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ENI ENERGY BONDCO LIMITED | 11294725 | 31/01/2024 | 07/06/2024 | Bronze |
| ENI ENERGY CAPITAL LIMITED | 11136061 | 31/01/2024 | 07/06/2024 | Bronze |
| ENI ENERGY FINANCE LIMITED | 11135991 | 31/01/2024 | 07/06/2024 | Bronze |
| ITHACA EF LIMITED | 03772746 | 24/03/2022 | 03/10/2024 | Silver |
| ITHACA UKCS LIMITED | 01019748 | 24/03/2022 | 03/10/2024 | Silver |
| NORTH SEA WIND LIMITED | 13029372 | 24/03/2022 | 14/10/2022 | Silver |
| PRIME AEP LIMITED | 00307812 | 24/03/2022 | 29/12/2022 | Gold |
| PRIME PAKISTAN LIMITED | 00151940 | 24/03/2022 | 29/12/2022 | Silver |