Oil and gas platforms: M
37 oil and gas platforms
| Platform | Country | Operator | Structure | Project stage |
|---|---|---|---|---|
| M7-A | Netherlands | ONE | — | Operating |
| MAGNUS | United Kingdom | ENQUEST PLC | PLATFORM | Operating |
| MALORY | United Kingdom | PERENCO OIL & GAS | PLATFORM | Operating |
| MARIA G | Norway | Wintershall Dea Norge AS | — | Operating |
| MARIA H | Norway | Wintershall Dea Norge AS | — | Operating |
| MARICA (ZD 11) | Croatia | INAgip | Fixed steel | Operating |
| MARINER B FSU | United Kingdom | EQUINOR ASA | FSO | Operating |
| MARINER PDQ JACKET | United Kingdom | EQUINOR ASA | PLATFORM | Operating |
| MARKER BUOY | United Kingdom | CNR INTERNATIONAL | BUOY | Operating |
| MARTIN LINGE A | Norway | Equinor Energy AS | — | Operating |
| MARTIN LINGE B | Norway | Equinor Energy AS | — | Operating |
| MARULK | Norway | Vår Energi ASA | — | Operating |
| MCP01 | United Kingdom | TOTALENERGIES UPSTREAM UK LIMITED | PLATFORM | Decommissioned |
| MET OCEAN BUOY MARINE GROWTH BUOY | United Kingdom | EQUINOR ASA | MONITOR BUOY | Operating |
| MIKKEL A | Norway | Equinor Energy AS | Subsea steel | Operating |
| MIKKEL B | Norway | Equinor Energy AS | Subsea steel | Operating |
| MILLOM WEST | United Kingdom | HARBOUR ENERGY PLC | PLATFORM | Operating |
| MILLOM WEST PLATFORM | United Kingdom | SPIRIT ENERGY | PLATFORM | Operating |
| MIMAS MN | United Kingdom | CHRYSAOR HOLDINGS | PLATFORM | Operating |
| MIME | Norway | — | Subsea steel | Decommissioned |
| MINERVA | United Kingdom | PERENCO OIL & GAS | PLATFORM | Operating |
| Mittelplate A | Germany | RWE-DEA | Other | Operating |
| MLSP D-6 | Russia | Lukoil | Floating steel | Operating |
| MODU KRIMEA-2 | Russia | — | — | Operating |
| MODU SIVASH | Russia | — | — | Operating |
| MODU TAVRIDA | Russia | Chernomorneftegaz | — | Operating |
| MONTROSE A | United Kingdom | REPSOL SINOPEC RESOURCES | PLATFORM | Operating |
| MONTROSE BLP PLATFORM | United Kingdom | REPSOL SINOPEC RESOURCES | PLATFORM | Operating |
| MOR-A | Norway | Equinor Energy AS | Subsea steel | Operating |
| MOR-B | Norway | Equinor Energy AS | Subsea steel | Operating |
| MORENA 1 | Italy | ENI | Fixed steel | Operating |
| MUNGO | United Kingdom | BP EXPLORATION | PLATFORM | Operating |
| MUNRO MH | United Kingdom | CHRYSAOR HOLDINGS | PLATFORM | Operating |
| MURDOCH ACCOMMODATION | United Kingdom | CHRYSAOR HOLDINGS | PLATFORM | Closed down |
| MURDOCH COMPRESSION | United Kingdom | CHRYSAOR HOLDINGS | PLATFORM | Closed down |
| MURDOCH DRILLING | United Kingdom | CHRYSAOR HOLDINGS | PLATFORM | Closed down |
| MØRE T | Norway | Gassco AS | — | Under construction |