Activity
Subsea cables
Recovering a metocean seabed frame mooring - Sanday - North Ronaldsay
10 July 2026 15:11:04
Partrac Ltd., on behalf of XOCEAN and Scottish & Southern Electricity Networks (SSEN), is recovering a metocean seabed frame mooring an interconnector cable project between Sanday and North Ronaldsay.
Activity
Subsea cables
Route Survey - Sanday to North Ronaldsay
10 July 2026 14:56:52
Survey Activities: XOCEAN is planning the collection of geophysical data along a proposed cable route corridor in Orkney, from the islands of Sanday to North Ronaldsay.
Activity
Renewables
Reef Enhancement for Scour Protection (RESP) Surveys - Rampion Offshore Wind Farm
10 July 2026 14:54:12
As part of the Reef Enhancement for Scour Protection (RESP) project, ARC marine will be conducting post installation surveys at 7 turbine locations within the windfarm.
Activity
Oil and gas
Liverpool Bay CCS Dredge Support Surveys
10 July 2026 14:53:28
Mariners are advised that Liverpool Bay CCS Ltd will conducting dredge support survey activities using the NRH Cormorant. The Cormorant will initially be working within Blocks A & B of the Liverpool Bay CCS Cable Construction Corridor.
Activity
Oil and gas
Caisson removal at the Bruce Platform
10 July 2026 14:47:18
We are undertaking a caisson inspection and removal campaign, and shim installation, on the Bruce PUQ Platform using the multi purpose support vessel, the Stril Server. All work is carried out within the Platform's 500m zone.
Hazard
Renewables
P35 Monopile Temporary Navigation Light Unlit - Inch Cape
10 July 2026 13:34:26
All mariners and stakeholders are advised that the P35 monopile temporary navigation light is unlit. All other monopile and transition piece navigation lights are operational.
Activity
Oil and gas
Subsea Actuator Removals - Ninian Central Subsea Isolation Valve Protection Structure
10 July 2026 13:32:45
During the period 10th August to 21st August, CNR International (UK) Limited will be carrying out the following works, utilising a diving support vessel:- Location – Ninian Central Subsea Isolation Valve Protection Structure Co-ordinates - 60° 51' 22.5346'' N, 01° 28' 30.1888' E Activity – Subsea Isolation Valve Actuator Removal x 2 Vessel Name – Boka da Vinci
Activity
Oil and gas
Rosebank Field Drilling Operations
10 July 2026 13:27:02
The Deepsea Atlantic mobile drilling rig will be conducting operations in the Rosebank field.
Activity
Oil and gas
Ornithological Survey - Southern North Sea
10 July 2026 13:24:18
Perenco will be undertaking an Annual Ornithological Survey of 16 assets in the Southern North Sea from 10th July 2026 - 15th July 2026 (weather permitting).
Activity
Oil and gas
Removal of Gaupe North and South Umbilicals
10 July 2026 13:20:04
The disconnection and removal of the Gaupe north and south umbilicals, from the cut point within the Armada Complex Hub 500 m zone up to the UK/Norway median line cut point.
Activity
Oil and gas
Geotechnical Boreholes - Stephenson site in block 49/17b
10 July 2026 12:24:34
Hartshead resources will be conducting a short geotechnical borehole programme at the Stephenson rig site in Block 49/17b starting on or around 14th to 17th July. The vessel Horizon Geodrill will be carrying out the work which will take place within a radius of 200m from the listed location.
Hazard
Fishing restrictions
Installation of Mattresses - Atlantic & Cromarty
10 July 2026 10:41:43
During a survey of the Decommissioning planning we have identified the presence of 49 concrete mattresses installed along the Cromarty pipeline. These mattresses are not located in 500m zones and were installed in 2003. The locations of the matt’s are identified in the co-ordinates below, noting there are multiple matt’s at some locations hence why there are 15 locations and 49 mattresses. ** NOTE: This notice is still active, there is a campaign this year to retrieve the mattresses **
Activity
Subsea cables
UXO, Archaeology & Geophysical Marine Surveys - Eastern Green Link 2 & Eastern Green Link 3
09 July 2026 14:44:13
Mariners are advised that Eastern Green Link 2 (EGL 2) and Eastern Green Link 3 (EGL 3) projects are conducting UXO, Archaeology (EGL 3) and Geophysical (EGL 2) Marine Surveys within the offshore Peterhead area. The marine survey activities are planned to commence in this area with EGL 2 vessel on the 18th June 2026 and EGL 3 vessel on 27th June 2026. Operations are now complete with EGL 2 vessel and are expected to complete with EGL3 vessel around 27th July 2026.
Hazard
Oil and gas
SID2 Decommissioning Project (Merganser)
09 July 2026 13:52:08
Subsea decommissioning activities will take place across the Scoter, Merganser, Heron, Atlantic & Cromarty and Kingfisher field locations. This will include the removal of infrastructure, and associated remediation and make-safe activities. Vessel - BOCA NORTHERN OCEAN
Hazard
Oil and gas
SID2 Decommissioning Project (Atlantic & Cromarty and Heron)
09 July 2026 13:51:38
Subsea decommissioning activities will take place across the Scoter, Merganser, Heron, Atlantic & Cromarty and Kingfisher field locations. This will include the removal of infrastructure, and associated remediation and make-safe activities. Vessel - BOCA NORTHERN OCEAN
Hazard
Oil and gas
SID2 Decommissioning Project (Scoter)
09 July 2026 13:50:35
Subsea decommissioning activities will take place across the Scoter, Merganser, Heron, Atlantic & Cromarty and Kingfisher field locations. This will include the removal of infrastructure, and associated remediation and make-safe activities. Vessel - BOCA NORTHERN OCEAN
Activity
Renewables
Geophysical Survey - Berwick Bank
09 July 2026 11:49:28
Mariners are advised that Berwick Bank Wind Farm Limited (BBWFL) will be returning to the Berwick Bank Wind Farm Area to undertake further geophysical survey work.
Activity
Subsea cables
Cable Survey - Ardmore-Skye and Flodabay-Harris
09 July 2026 11:16:38
XOCEAN is planning the collection of geophysical data using remotely piloted Uncrewed Surface Vessels (USVs) along the cable route between Ardmore-Skye and Flodabay-Harris.
Activity
Subsea cables
Survey Campaign - Shetlands HVDC Link 2 LT374
09 July 2026 11:15:37
Mariners are advised that a marine cable route survey is planned for the proposed Shetland Link 2 cable. The survey will involve geophysical, geotechnical and benthic surveying. SSEN Transmission conduct marine surveys to gain information on seabed morphology, installation design, sediment structure and to gain benthic characterisation and habitat mapping. Update 10 June 2026: This NtM has been updated to include a survey into Minn Islesburgh, as well as a corridor extension east of Fairisle.
Activity
Renewables
Orange-D IAC Cable replacement - Neart na Gaoithe Offshore Wind Farm
09 July 2026 10:41:29
Mariners are advised that Neart na Gaoithe Offshore Wind Farm Limited (NnGOWL) has completed the replacement of the Orange-D inter-array cable (IAC). The burial of the Orange-D IAC is due to take place in August 2026. Due to vessel availability, following the replacement of the Orange-D cable it is expected that cable burial will take place in August 2026. While the IAC cable is unburied a guard vessel is present onsite 24/7 with an OFLO onboard to alert
