OSRL welcomes Intermoor to the Global Subsea Response Network to strengthen offshore mooring and subsea response readiness
New collaboration enhances mooring engineering, proprietary split-lowering capability, installation planning, integrity management, and offshore execution support for complex subsea response operations.
[Houston, August 2026] — Intermoor, Acteon’s Moorings and Anchors business line, has joined the Global Subsea Response Network (GSRN), strengthening the network’s ability to support coordinated subsea incident response through specialist mooring engineering, anchor systems, offshore installation, inspection, and decommissioning expertise.
The inclusion of Intermoor represents an important step in advancing the industry’s collective preparedness for complex subsea response scenarios. As offshore operations continue to move into deeper, harsher, and more complex environments, the demands on subsea response are increasing. Effective source control and subsea response require more than access to specialized equipment; it also depends on the ability to engineer, mobilize, install, inspect, and recover offshore systems safely and efficiently.
Intermoor brings more than four decades of experience delivering complex offshore projects worldwide, supporting major operators across the Americas, Europe, Africa, Asia-Pacific, and the Middle East. The company combines advanced engineering, project execution, offshore installation, marine operations, and asset integrity expertise to support some of the industry's most challenging offshore developments.
A key element of Intermoor’s contribution is its proprietary Split Lowering System (SLS), an engineered shallow-water capping stack installation approach designed to separate the load, vessel configuration, and lowering operation across multiple assets. In a response scenario, this methodology can support safer vessel stand-off, improved control during capping stack deployment, and provide a more structured approach to landing heavy subsea response equipment. This may be particularly valuable where gas dispersion, restricted access, shallow water, or local environmental constraints restrict conventional deployment options.
Complex subsea response operations require the integration of vessels, ROVs, lifting systems, survey providers, response equipment, marine contractors, and technical authorities. Intermoor's experience managing these multidisciplinary interfaces helps transform engineering concepts into executable offshore solutions under demanding operating conditions.
Through participation in the GSRN, Intermoor will support the network’s broader objective of improving global readiness for subsea well response by helping define how mooring engineering, anchor handling, temporary station keeping, offshore installation planning, split-lowering methodology, and integrity assurance can be incorporated into response planning, exercises, and regional readiness models. This includes potential support for capping stack deployment planning, vessel station keeping, shallow-water split-lowering operations, temporary mooring spreads, and post-response inspection or recovery activities.
“Intermoor joining the Global Subsea Response Network reflects our commitment to strengthening the industry’s ability to respond with speed, discipline, and confidence during complex subsea events. By bringing world-class mooring and offshore execution expertise into the GSRN framework, we are improving the practical readiness needed to plan, mobilize, and execute response operations safely across diverse offshore environments.”
Vania De Stefani, Chief Executive Officer, OSRL
“From a subsea response perspective, Intermoor adds practical offshore capability where it matters most: engineered station keeping, anchor system knowledge, installation planning, field execution, and proprietary split-lowering methodology. These are critical enablers for response scenarios involving capping stack deployment, vessel coordination, ROV operations, and shallow-water environments where maintaining safe vessel and equipment positioning away from the immediate hazard area may be essential. Intermoor’s participation strengthens the GSRN’s ability to convert preparedness concepts into executable response models.”
Brett Morry, Subsea Manager, Americas, OSRL
For Intermoor, participation in the GSRN provides a direct opportunity to apply its mooring, anchoring, split-lowering, and offshore execution expertise within a global preparedness framework that supports operators, response organizations, and regional execution partners.
“Joining the Global Subsea Response Network allows Intermoor to contribute not only our mooring engineering and anchor expertise, but also our broader offshore execution capabilities developed through decades of delivering complex offshore projects around the world. Effective subsea response requires more than equipment: it requires practical engineering, disciplined planning, operational readiness, and safe execution in challenging environments. We are proud to bring those capabilities to GSRN and support the industry's collective commitment to preparedness.”
Tom Fulton, Global Director – Strategic Solutions and Mooring Products, Intermoor
For the wider industry, this collaboration highlights the importance of integrating specialist offshore execution capability into subsea emergency preparedness. Response effectiveness depends not only on access to subsea hardware and competent personnel, but also on the ability to position vessels safely, manage deployment systems, understand seabed and anchor constraints, and execute offshore activities in a safely controlled and repeatable manner.
Intermoor’s role in the GSRN will also support the development of regional readiness models. These may include pre-identified mooring strategies, anchor handling resources, split-lowering concepts, installation methods, equipment interfaces, engineering assumptions, and recovery plans to be prepared in advance. Working through these requirements in advance can help reduce mobilization friction during an incident and improve consistency across regions, operators, contractors, and response organizations.
What this means for industry
Stronger access to specialist mooring engineering, anchor system knowledge, and offshore station keeping expertise for subsea response planning.
Improved ability to plan temporary mooring spreads, vessel positioning arrangements, and offshore execution models for capping stack and source control operations.
Practical application of proprietary split-lowering methodology for shallow-water capping stack deployment, including scenarios where vessel stand-off, controlled landing, and reduced exposure to the immediate hazard area are important response considerations.
Reduced operational uncertainty through earlier consideration of seabed conditions, anchor constraints, equipment interfaces, installation sequencing, and recovery requirements.
Greater consistency in regional readiness by preparing mooring concepts, vessel support assumptions, engineering inputs, and contractor interfaces before an incident occurs.
Enhanced preparedness for inspection, integrity management, removal, and decommissioning activities that may follow temporary response operations.
The GSRN will continue working with members and technical partners to identify practical ways to improve subsea response preparedness, including response engineering, exercises, regional execution models, contractor integration, and the sharing of lessons learned across the industry.
OSRL and Global Subsea Response Network
OSRL is the largest international industry-funded organisation, dedicated to supporting its members in preparing for and responding to oil spills globally. With a mission to provide efficient and effective resources to mitigate the impact of spills on communities and the environment, OSRL delivers world-class preparedness, response, and intervention services. Wholly owned by its members, OSRL employs 300 people across 13 locations worldwide and is headquartered in Southampton, UK.
OSRL established the Global Subsea Response Network to improve preparedness, coordination, and capability for subsea well response. The network supports practical response models, technical guidance, exercises, and cross-industry alignment to improve readiness for subsea source-control scenarios.
About Intermoor
Intermoor, Acteon's Moorings and Anchors business line, is a global provider of offshore engineering, mooring, anchor, and marine construction solutions. For more than 40 years, Intermoor has supported offshore energy developments worldwide through integrated engineering, project management, offshore installation, mooring integrity management, inspection, life extension, and decommissioning services. The company delivers both temporary and permanent station-keeping solutions and is recognized for its expertise in complex offshore execution, innovative deployment methodologies, and life-cycle support of critical offshore infrastructure.
