Integrated DECOM A specialist team to deliver Decommissioning Programmes

Introduction Integrated DECOM

Objectives ~500 UKCS structures Only ~10% decommissioned Consortium to provide independent UKCS decommissioning support ~500 UKCS structures Only ~10% decommissioned Industry looking for ‘one-stop-shop’ Own entire decommissioning programme (DP) workscope Utilise existing UKCS expertise, relationships and knowledge Capacity to take on large and/or multiple projects Deliver efficient, cost effective and innovative services

Shared History Endeavour ConocoPhillips Renee/Rubie Viking/LOGGS PEMEX QRA ETI CCS Nexen Rig Review Perenco Welland/ Thames Shell Brent Premier Shelley ConocoPhillips Viking/LOGGS Endeavour Renee/Rubie

Consortium Capability

DP Workflow Safety and societal Reuse/Recycle/Dispose Items for decom MER / COP Well abandonment programme Environmental Impact Assessment Pipeline decom Removal and disposal options Schedule Costs Drill cuttings removal Data storage and management (CTE initiative) Safety and societal

Integrated Delivery OGA Consultation and Approval Process Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Preliminary discussions with OGA Detailed discussions and submission of draft plan Consultations with other interested parties and public Formal submission and program approval Commence main works and site surveys Monitoring of site Operator COP and Gate Decom Process Concept Selection Gate CoP & Decom Approval Gate Decommission Contractor Management Risk Management Project Control & Reporting Compliance Management Select Comparative Assessment Verification of Strategy Costs Studies and Planning Strategy Planning Define FEED Scopes of Work & ITTs Decom. Programme Sanction Budget

Consortium Strengths Industry recognised discipline specialists Knowledge Industry recognised discipline specialists Extensive UKCS experience including lessons learned Innovation Consortium companies have proven record of delivering high quality, fit-for-purpose technical and business solutions Integration Shared workflows, project management, communication Common data infrastructure Value Streamlined, efficient, low risk project delivery Cost effective

Total service - single source Individually the Consortium companies have already successfully delivered on the major UKCS decommissioning projects Also extensive experience delivering international decommissioning projects Integrated DECOM builds on proven track record delivering high quality, specialist decom services Capability and capacity to deliver entire Decommissioning Programme workscope Offers an efficient, low risk, decom single point solution BP COP Endeavour ETI CCS Fairfield Hess Maersk Perenco Premier Talisman Shell Axis BMTCordah Costain DNVGL

Case Study - Hess Safety and societal Reuse/Recycle/Dispose Items for decom MER / COP Well abandonment programme Environmental Impact Assessment Pipeline decom Removal and disposal options Schedule Costs Drill cuttings removal Data storage and management (CTE initiative) Safety and societal Well P&A costs COP: 3D modelling, pressure recharge assessment Well integrity review, Well DP prep, Wellsite supervision

Case Study – Premier Safety and societal Reuse/Recycle/Dispose Items for decom MER / COP Well abandonment programme Environmental Impact Assessment Pipeline decom Removal and disposal options Schedule Costs Drill cuttings removal Data storage and management (CTE initiative) Safety and societal ES & EIA Develop budget, AFE control, supplier monitoring Well integrity review, well DP prep, wellsite supervision FPSO, mattress protection, umbilical option studies Cleaning, cutting, protection, survey studies Decom options study DP preparation & delivery, removal mgmt Risk assessment, safety mgmt

Case Study - BG Safety and societal Reuse/Recycle/Dispose Items for decom MER / COP Well abandonment programme Environmental Impact Assessment Pipeline decom Removal and disposal options Schedule Costs Drill cuttings removal Data storage and management (CTE initiative) Safety and societal Well integrity review, Well DP prep Topsides and jacket lift structural assessment

Holistic Approach to Decommissioning Consideration of the whole project scope from planning to execution Highlighting points of interface between disciplines Identifying activities or operations that may be adversely impacted by each other or be affected by compliance issues. At the early stages of project planning, involve both engineering and environmental disciplines to ensure methods considered are environmentally sound and would pose minimal concern to stakeholders and regulator. Minimises risk profile of project Minimises potential schedule delays Minimises scope for unforeseen cost increases either through project delays, additional survey requirements or additional monitoring requirements Reduces risk of project design changes late in the project lifespan What do we mean? Added value

Thank you Contact Details Alastair Dodds: adodds@axis-wt.com Gareth Jones: gareth.jones@bmtcordah.com Eamonn McGennis: eamonn.mcgennis@costain.com Graeme Lamont: graeme.lamont@dnvgl.com Thank you