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| CATS pipeline | |
|---|---|
| Name | CATS pipeline |
| Type | natural gas pipeline |
| Location | North Sea, United Kingdom |
| Owner | ConocoPhillips, BP, Shell |
| Length | 360 km |
| Capacity | 1.7 billion cubic feet per day |
| Start | Central North Sea |
| End | Teesside |
| Established | 1993 |
CATS pipeline is a major natural gas export pipeline transporting produced gas from offshore installations in the Central North Sea to an onshore terminal at Teesside, England. It connects numerous oil and gas fields and platforms to processing and export infrastructure, involving leading energy companies and service contractors across the North Sea region. The pipeline has been central to United Kingdom energy supply, corporate transactions, regulatory proceedings, and infrastructure investments.
The pipeline links Central North Sea producing areas with onshore facilities at Teesside and integrates with hubs, fields, and terminals associated with Brent oilfield, Statfjord field, Forties pipeline system, Viking gas field, Brae oilfield, Ekofisk oilfield, Johan Sverdrup oilfield, Buzzard oilfield, Rosebank oilfield, and Clair oilfield. Sponsors and operators have included ConocoPhillips, BP, Royal Dutch Shell, TotalEnergies, Schlumberger, and Transocean. Key interfaces exist with infrastructure operated by SABIC, INEOS, National Grid plc, E.ON UK, and Northern Gas Networks. Technological and contractual links involve ABB Group, Siemens Energy, Halliburton, Baker Hughes, Subsea 7, and Saipem.
Initial proposals were debated among stakeholders including British Gas plc, Shell Transport and Trading Company, Amoco Corporation, Mobil Corporation, Elf Aquitaine, and government bodies such as Department of Trade and Industry (United Kingdom), later Department of Energy and Climate Change. Construction was driven by developments at fields tied to operators like Norsk Hydro and ExxonMobil and financed via project agreements with banks including HSBC Holdings, Barclays, Lloyds Banking Group, and Deutsche Bank. The pipeline became operational amid regulatory oversight by Oil and Gas Authority (United Kingdom), Health and Safety Executive, and European institutions influenced by directives involving European Commission. Ownership changes involved transactions with Eni S.p.A., Vitol, Ineos Energy, and acquisitions by Chrysaor Holdings.
Engineered with subsea technology from vendors including Vickers, George Wimpey, Kværner, McDermott International, and Boskalis, the pipeline uses steel grades and coatings similar to projects like Nord Stream 1, Interconnector (UK–Belgium), Balgzand–Bacton Line, Langeled pipeline, and Trans-Adriatic Pipeline. Components incorporate compressors, metering, pigging facilities, and umbilicals from Siemens Energy, ABB Group, Emerson Electric Co., Honeywell International, and Schneider Electric. Design addressed environmental concerns raised by Royal Society for the Protection of Birds, Greenpeace, Friends of the Earth, and coastal authorities including Redcar and Cleveland Borough Council and Tees Valley Combined Authority.
Operations have been coordinated with major fields operated by ConocoPhillips, BP, Shell plc, TotalEnergies SE, Nexen Energy, Repsol, and EnQuest plc. Daily throughput capacity has been compared to other systems such as Forties pipeline system and Norpipe, and balancing arrangements involve market participants including Gazprom Marketing & Trading, BP Gas Marketing Limited, Centrica plc, EDF Energy, E.ON SE, RWE AG, and Equinor ASA. Maintenance and integrity management involve providers like DNV, Lloyd's Register, Bureau Veritas, ABS Group, and Petrofac. Emergency and incident response coordination has linked Maritime and Coastguard Agency, HM Coastguard, Royal Navy, and RNLI.
The pipeline has enabled commercial monetization of gas from developments linked to Rosebank, Jade, Hess Corporation assets, and smaller discoveries licensed to Premier Oil, Dana Petroleum, JX Nippon Oil & Gas Exploration, Cairn Energy, and OMV. Scientific studies of subsea corrosion, hydrate management, and flow assurance have interacted with research centres such as University of Aberdeen, University of Edinburgh, Heriot-Watt University, Imperial College London, Swansea University, and institutions like National Oceanography Centre, Plymouth Marine Laboratory, Centre for Environment, Fisheries and Aquaculture Science, and British Geological Survey.
The pipeline and associated operations have been subject to disputes and events involving Competition and Markets Authority, European Court of Justice, Supreme Court of the United Kingdom, and local objections involving groups like Teesside Development Corporation and environmental NGOs including ClientEarth. Incidents requiring regulatory investigation involved agencies such as Health and Safety Executive and corporate responses including Glencore, Serica Energy, and Ithaca Energy. Commercial controversies have intersected with major transactions involving Chesapeake Energy, Apache Corporation, Tullow Oil, ExxonMobil Corporation, and Chevron Corporation.
Planned upgrades, tie-ins, and repurposing studies involve projects and stakeholders such as Net Zero Teesside, HyNet North West, Northern Endurance Partnership, East Coast Cluster, Zero Carbon Humber, Carbon Capture and Storage (CCS) projects affiliated with National Grid Ventures, Equinor ASA, BP plc, Shell plc, SSE plc, Drax Group, and Centrica. Research and technology transfer collaborations include Arup Group, Atkins (company), Ramboll, Wood Group, Mott MacDonald, and academic partners listed above. Policy and financing dialogues reference UK Government, Department for Business, Energy and Industrial Strategy, European Investment Bank, World Bank, and private financiers like BlackRock, Macquarie Group, and Goldman Sachs.
Category:North Sea pipelines