| STICHTING ADMINISTRATIEKANTOOR OCEANTEAM P&U CVR 990092850 | OtherContact Person | Siden 2006 | — | Aktiv |
| SERIOUS AS CVR 999249582 | BoardChairman | Siden 2012 | — | Aktiv |
| AMMONIA ENERGY SOLUTIONS AS CVR 826725362 | BoardChairman | Siden 2021 | — | Aktiv |
| AKER ASA CVR 886581432 | OwnerLegal Owner | Siden 2024 | 0.0% | Aktiv |
| PETROLIA TOOL POOL AS CVR 897588722 | BoardChairman | Siden 2016 | — | Aktiv |
| DNO ASA CVR 921526121 | OwnerLegal Owner | Siden 2024 | 0.0% | Aktiv |
| CO2 MANAGEMENT AS CVR 922634149 | BoardChairman | Siden 2019 | — | Aktiv |
| HYDROGEN & CCS AS CVR 924520108 | BoardChairman | Siden 2020 | — | Aktiv |
| PETROLIA RIGS AS CVR 979644264 | BoardChairman | Siden 2016 | — | Aktiv |
| OIL TOOLS SUPPLIER AS CVR 979849362 | BoardChairman | Siden 2016 | — | Aktiv |
| PETROLIA AS CVR 980021874 | BoardChairman | Siden 2016 | — | Aktiv |
| VENTURE DRILLING AS CVR 988786748 | BoardChairman | Siden 2016 | — | Aktiv |
| PETROLIA INVEST AS CVR 992848405 | ManagementChief Executive Officer | Siden 2012 | — | Aktiv |
| PETROLIA NOCO AS CVR 997015231 | OwnerLegal Owner | Siden 2024 | 0.1% | Aktiv |
| PETROLIA RIGS II AS CVR 997204999 | BoardChairman | Siden 2016 | — | Aktiv |
| PETROLIA SE NUF CVR 999058302 | ManagementChief Executive Officer | Siden 2015 | — | Aktiv |
