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Subsea steel installations
400 oil and gas platforms
| Platform | Country | Operator | Project stage |
|---|---|---|---|
| GJØA D | Norway | Neptune Energy Norge AS | Operating |
| GJØA E | Norway | Neptune Energy Norge AS | Operating |
| GRANE SSIV | Norway | Equinor Energy AS | Operating |
| Greensand | Ireland | PSE Kinsale Energy | Operating |
| GULLFAKS A SSIV | Norway | Equinor Energy AS | Operating |
| GULLFAKS C SSIV | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR D | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR E | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR F | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR G | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR H | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR I | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR J | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR K | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR L | Norway | Equinor Energy AS | Operating |
| GULLFAKS SØR M | Norway | Equinor Energy AS | Operating |
| GULLFAKS T | Norway | Gassco AS | Operating |
| GYDA-Y | Norway | — | Under construction |
| HEIDRUN B | Norway | Equinor Energy AS | Operating |
| HEIDRUN C | Norway | Equinor Energy AS | Operating |
| HEIDRUN D | Norway | Equinor Energy AS | Operating |
| HEIDRUN E | Norway | Equinor Energy AS | Operating |
| HEIDRUN F | Norway | Equinor Energy AS | Under construction |
| HEIDRUN PLEM-1 | Norway | Equinor Energy AS | Operating |
| HEIDRUN PLEM-2 | Norway | Equinor Energy AS | Operating |
| HEIDRUN RISER-BASE | Norway | Equinor Energy AS | Operating |
| HEIDRUN SDU | Norway | Equinor Energy AS | Operating |
| HEIDRUN TEMPLATE | Norway | Equinor Energy AS | Operating |
| HEIDRUN UMBILCAL BASE | Norway | Equinor Energy AS | Operating |
| JOTUN SSIV | Norway | Vår Energi ASA | Operating |
| JOTUN T | Norway | Gassco AS | Operating |
| K12-S1 (subsea) (verwijderd) | Netherlands | GDFP | Decommissioned |
| K12-S2 | Netherlands | NEPTUNE | Operating |
| K12-S3 | Netherlands | NEPTUNE | Operating |
| K4a-D | Netherlands | TOTAL | Operating |
| KNELER A | Norway | Aker BP ASA | Operating |
| KNELER B | Norway | Aker BP ASA | Operating |
| KRISTIN N | Norway | Equinor Energy AS | Operating |
| KRISTIN P | Norway | Equinor Energy AS | Operating |
| KRISTIN Q | Norway | Equinor Energy AS | Under construction |
| KRISTIN R | Norway | Equinor Energy AS | Operating |
| KRISTIN S | Norway | Equinor Energy AS | Operating |
| KRISTIN T | Norway | Gassco AS | Operating |
| L10-S1 (verwijderd) | Netherlands | PLACID | Decommissioned |
| L10-S2 | Netherlands | NEPTUNE | Operating |
| L10-S4 | Netherlands | NEPTUNE | Operating |
| L13-FH-1 (verwijderd) | Netherlands | NAM | Decommissioned |
| L14-S1 (subsea) (verwijderd) | Netherlands | NEPTUNE | Decommissioned |
| L4-G | Netherlands | TOTAL | Operating |
| L8-A-West | Netherlands | WIN | Operating |
| LILLE-FRIGG | Norway | Aker BP ASA | Decommissioned |
| LILLE-FRIGG A | Norway | Aker BP ASA | Decommissioned |
| LILLE-FRIGG B | Norway | Aker BP ASA | Decommissioned |
| LUNA 27 | Italy | ENI | Operating |
| LUNA 40 SAF | Italy | ENI | Operating |
| MIKKEL A | Norway | Equinor Energy AS | Operating |
| MIKKEL B | Norway | Equinor Energy AS | Operating |
| MIME | Norway | — | Decommissioned |
| MOR-A | Norway | Equinor Energy AS | Operating |
| MOR-B | Norway | Equinor Energy AS | Operating |
| NJORD SDU-1 | Norway | Equinor Energy AS | Operating |
| NJORD SDU-2 | Norway | Equinor Energy AS | Operating |
| NJORD T | Norway | OKEA ASA | Operating |
| NORDØST FRIGG | Norway | Equinor Energy AS | Decommissioned |
| NORNE B | Norway | Equinor Energy AS | Operating |
| NORNE C | Norway | Equinor Energy AS | Operating |
| NORNE D | Norway | Equinor Energy AS | Operating |
| NORNE E | Norway | Equinor Energy AS | Operating |
| NORNE ERB | Norway | Gassco AS | Operating |
| NORNE F | Norway | Equinor Energy AS | Operating |
| NORNE G | Norway | Equinor Energy AS | Operating |
| NORNE H | Norway | Equinor Energy AS | Operating |
| NORNE J | Norway | Equinor Energy AS | Operating |
| NORNE K | Norway | Equinor Energy AS | Operating |
| NORNE/HEIDRUN T | Norway | Gassco AS | Operating |
| NORPIPE Y | Norway | Gassco AS | Operating |
| ORMEN LANGE A | Norway | A/S Norske Shell | Operating |
| ORMEN LANGE B | Norway | A/S Norske Shell | Operating |
| ORMEN LANGE D | Norway | A/S Norske Shell | Operating |
| OSEBERG DELTA | Norway | Equinor Energy AS | Operating |