Able Seaton Port has reached a major milestone in UK North Sea decommissioning with the completion of the final jacket from the LOGGS and CMS Satellite Decommissioning Programme. This final structure was safely brought onshore on 21 January 2026, marking the culmination of one of the largest and most technically complex decommissioning programmes undertaken in the Southern North Sea.

This achievement closes a multi-year, multi-contractor effort spanning three major decommissioning projects on behalf of Harbour Energy:

LOGGS Hub - Saipem (Aug 2021-Jan 2023)
Murdoch Complex - Heerema Marine Contractors (Jun 2022-Jul 2023)
LOGGS & CMS Satellites - AF Offshore Decom / AF Gruppen (Jul 2022-Mar 2026)

A Programme of Unprecedented Scale

Across the collective LOGGS, Murdoch and CMS programmes, Able Seaton Port has supported the reception, processing and recycling of:

19 topsides
19 jackets
Multiple bridges, modules and associated infrastructure
More than 44,000 tonnes of offshore assets delivered across three primary contractor scopes

These volumes position the programme among the most significant coordinated decommissioning efforts in the UK Continental Shelf.

Collaborative Delivery with Industry Leaders

The success of the programme reflects exceptional collaboration between Able Seaton Port and a group of world-class offshore contractors and operators:

Harbour Energy - Operator across all campaigns
Saipem - Lead contractor for the LOGGS Hub
Heerema Marine Contractors - Heavylift contractor for the Murdoch Complex
AF Offshore Decom (AF Gruppen) - EPRD contractor for LOGGS & CMS Satellites
DEME - Innovation vessel providing precision offshore lifting support
Mammoet - Engineering and heavy-transport partner across multiple phases

ABLE’s integrated quayside, engineering and environmental capabilities enabled seamless delivery for each of these partners, reinforcing its position as a trusted hub for large-scale decommissioning.

Engineering Innovation at Every Stage

The programme showcased a broad range of engineering and operational breakthroughs, including:

Deployment of drilled liftpoint pins by AF Offshore Decom to eliminate the need for welded lifting lugs
A tug-assisted jacket pullover, engineered jointly by ABLE and Mammoet during the LOGGS Hub phase
Precision offshore lifts executed by DEME’s Innovation jack-up vessel
Full inhouse deployment of ABLE’s SPMT fleet for controlled set-downs and laydown operations
Inhouse quay dredging and material recovery, utilising ABLE’s LHM600 crane and clamshell grab

These innovative methodologies enhanced safety, reduced schedule risk and improved efficiency across multiple campaigns.

Environmental Stewardship and Safety Excellence

The programme further demonstrated ABLE’s commitment to zero-harm operations and responsible environmental management:

6,660+ incident-free hours logged during AFOD Phase 3 alone
Careful offshore scheduling to avoid kittiwake breeding seasons
Extensive engineering, modelling and risk analysis underpinning all lifts and load-ins
Recycling performance expected to exceed 97% across the Murdoch and LOGGS Hub campaigns
Strict adherence to environmental and regulatory frameworks throughout all phases

These outcomes align with ABLE’s long-standing dedication to sustainable, safety-led decommissioning.

Murdoch Complex: A Standout Success

The programme was strengthened by the removal and delivery of major structures from the Murdoch Complex, managed by Heerema Marine Contractors. Key totals included:

6,823 tonnes of topsides
4,338 tonnes of jackets
273 tonnes of bridges
Total: 11,328 tonnes

The Murdoch campaign reinforced ABLE’s role as a UK leader in handling large, technically demanding projects at scale.

Lance Taylor, CEO, Able Group says:

“The completion of the LOGGS and CMS decommissioning programme marks a defining moment for Able Seaton Port and for the wider UK decommissioning sector. This achievement reflects not only the scale and technical complexity of the work, but the professionalism, innovation and dedication demonstrated across every phase of the project. Our teams, alongside our industry partners, have delivered world‑class engineering, exemplary environmental stewardship and unwavering commitment to safety. As the North Sea enters its next chapter, ABLE stands ready to continue providing the capacity, capability and confidence that major offshore operators rely on.”

Looking Ahead: Capacity, Capability and Commitment

With the LOGGS/CMS Satellites Project now approaching its final phases, ABLE Seaton Port remains fully equipped to support the North Sea’s next wave of decommissioning activity.

Key advantages include:

Deep-water, heavy-lift quays
Extensive laydown, processing and recycling capacity
Proven 97%+ recycling rates across major projects
Inhouse SPMT, dredging, ballasting and cranage operations
A consistent track record of safe, efficient delivery for global offshore clients

ABLE looks forward to continuing its collaboration with Harbour Energy, AF Offshore Decom, Heerema, Saipem and future partners as the UKCS transitions into its next chapter.

Able Seaton Port Marks Completion of Landmark LOGGS & CMS Decommissioning Programme