Jinda Nelson

Chair Person

Jinda Nelson | Bilfinger Salamis UK Decommissioning Development Manager

Jinda is a Decommissioning Development Manager at Bilfinger Salamis UK, dividing her time between operations, innovation, technical and business development. She is dedicated to increasing the UK’s market share in decommissioning. As a strategic driver within Bilfinger, Jinda excels in capturing and delivering opportunities. She is heavily involved in all aspects of decommissioning, from concept to completion, and is key in developing strategic action plans.

Jinda comes from a varied technical background and holds a BSc honours degree in Architectural Technology from the Scott Sutherland School of Architecture, Robert Gordon University.

She has previously spent more than 8 years in the Middle East running her own business, then consulting throughout the Persian Gulf. She has worked with the British Embassy in Bahrain as a warden and has vast national and international experience in global business.

Jinda’s holistic understanding of design and construction, underpinned by time spent in a mechanical engineering post working on various projects, including FPSOs, ideally positions her to add value to reverse engineering/ decommissioning. She is involved in a number of live decommissioning projects both offshore and at UK quaysides.

She has also spent a significant amount of time in the Far East and has worked within an international, award-winning design studio, where she worked on designing a theme park within a seismic area in Taiwan and several high profile shopping malls in China.

Jinda has been heavily involved with the Decommissioning Leadership Group and served time in the Market Intelligence Group. 

Dawn Robertson

Vice Chair Person

Dawn Robertson | Bureau Veritas - Global Strategic Sales Director, Global Services – Marine & Offshore

Dawn Robertson is the Global Strategic Sales Director, Global Services, for Bureau Veritas Marine & Offshore.  Dawn is MBA and BA(Hons) qualified, with extensive experience in Senior Management and Director roles, and throughout her career, she has been responsible for matching external business challenges with talent. With over seventeen years strong commercial and business improvement experience,  Dawn excels at providing vision and leadership through her role as the Global Strategic Sales Director, whilst implementing innovative and proactive business strategies with strong performing and collaborative teams.

Dawn is driven to support growing business and meet targeted objectives, backed by an infectious passion for the work she does.  Dawn’s career has spanned across operations, marketing, sales and business development.  Having worked in the oil and gas industry for a number of years, Dawn has a comprehensive understanding of the needs and demands of those working within the industry.  In recent years, Dawn has worked in conjunction with industry experts to provide Bureau Veritas with the management required to support the needs of those in the decommissioning industry and has consolidated all the required BV service lines into a cohesive decommissioning portfolio.  Dawn has a particular interest in the innovative pursuit of cost efficiency through the advancement of technology in the decommissioning sector for example digital twinning in the decom space which through forensic analysis savings of up to 15% of total decommissioning project costs can be achieved.

Dawn acted as a lead on the "Decommissioning on the UKCS - An overview of regulations" initiative that has been very well received by industry and all involved.  The collaborative project, which wasn’t without challenges due to a lack of guidance in the industry and contained within regulations, has proved to be an effective project, providing the industry with concise information and guidance on decommissioning.  The document has resulted in a ‘Compliance Hub’ being formed with the partners and Bureau Veritas entities that now provide the decommissioning market a one-stop-shop for decommissioning compliance.

Dawn has been actively involved with Decom North Sea since May 2018 as a member of the Decommissioning Leadership Group and Chair of the Market Intelligence Special Interest Group. Her passion and energy has been a catalyst to appoint her as the Decommissioning Leadership Group Chair and Vice Chair to the Board of Directors in August 2019.

John Allan


John is the Decommissioning Director at Enquest PLC where he is accountable for the development of decommissioning capability and project delivery.  He is a fellow of the Institution of Mechanical Engineers and previously worked for Shell International and Canadian Natural Resources where he led the Murchison, Ninian North and Olowi decommissioning projects.  John’s current directorate project portfolio at Enquest includes the Heather and Thistle platforms, Alma-Galia and the Don fields.  He is passionate about reducing both decommissioning costs and carbon emissions through constant challenge of project timing, scope and execution, encouraging a continuous improvement mind-set and building diverse, engaged project teams.

Alvaro Ranero


Alvaro Ranero | Repsol – VP Decommissioning & Investment Management

Alvaro Ranero is Vice President for Decommissioning & Investment Management at Repsol and has more than 20 years’ experience in the International Oil and Gas Industry. He began his career as a Production Engineer at Anadarko Petroleum and holds a BSc in Petroleum Engineering from Colorado School of Mines and an Executive MBA from INSEAD.

Alvaro joined Repsol in 2005 and since then has held roles of increasing responsibility. Prior to arriving in the UK in 2015, he was Asset Director in Venezuela for 4 years. He has a wide range of experience in mature assets management and projects delivery. Throughout his career he has held international assignments in the US, Guatemala, Canada, Libya, Algeria, Venezuela and now in the UK. 

Steven Simpson

Technical Services, Technology & Equipment Providers

Steven Simpson | Brimmond Group - Business Development Manager

Having been part of the DLG for the last 2 years, Steven has gained a good understanding of where Decom North Sea wishes to grow and develop as well as provide an ever-increasing portfolio of services and market intelligence to the membership.  Internationalisation, Market Intelligence and collaboration are some of the key focus areas going forward for DNS which are areas that provide a great personal interest to Steven and of which he has over 15 years of experience in.

Bringing experience of Business development, Business & Marketing (B.A Honours degree), commercial, negotiation and market research, Steven aims to make himself both approachable and available whenever possible to discuss any appropriate matters. Within the Decommissioning sector itself, Steven has first-hand experience of both the issues and opportunities that organisations have whether it be in P&A, Wells, Crane and lifting applications and removal processes, and feels that with increased support, exposure and collaboration then all levels of organisations can greatly benefit from a wide scale of perspectives from safety, cost, availability and innovation. 

Steven is a diligent and approachable professional that will strive to become a link and voice for current and new members in what he believes to be a defining 3-5 years for the decommissioning sector.

Anthony Fievez

Major Contractors

Anthony Fievez | Heerema Marine Contractors - Decommissioning Commercial Manager

Anthony has spent 20 years working on a range of high profile projects in the oil and gas contracting industry. He started his career in Australia and South East Asia on several shallow water pipelay projects before moving to Heerema Marine Contractors where he spent 5 years on ultra-deep water pipelay projects in the Gulf of Mexico.

Anthony took some time away from the industry to complete an MBA before returning to Heerema to take project management roles on jacket and topsides installation and removal projects in the North Sea and Australia.

In his current role as Decommissioning Commercial Manager for Heerema, Anthony has spent the last 5 years engaging directly with operators, regulators and other stakeholders to assist them with their decommissioning challenges. Anthony is a strong believer in the strength of supplier-led solutions and recognizes the importance of the Decom North Sea member base to delivering decommissioning activities worldwide.

Donald Mackay

Service Specialists

Donald Mackay | Schlumberger Oilfield UK Plc – Business Development Manager

Donald started his career in oil and gas with Schlumberger over 22 years ago as a graduate engineer, and subsequently moved through various offshore engineering, onshore operational and commercial support roles in countries around the North Sea and Continental Europe.

In 2012 Donald joined the Schlumberger Integrated Projects group with responsibility to help define and set strategy for Schlumberger’s creation of the Integrated Well Abandonment group; a group which has capability from subsurface studies, through planning, engineering and execution, inside a single innovative contract model. Currently in the role of Business Development Manager for abandonment and decommissioning projects, he has responsibility for Schlumberger’s involvement and execution of multi-service / turnkey abandonment workscopes throughout Europe.

With a continual requirement for improved performance and cost efficiency for abandonment and decommissioning Donald has actively pursued, and brings extensive experience, in the creation of collaborative solutions, partnerships, new technology development and alternative contracting strategies to meet the demands of the market.

Callum Falconer

Specialist Advisors, Consultants & Project Managers

Callum Falconer | CRF Consultants Limited - Director

Callum has been in the oil and gas industry for over 34 years and was at Marathon Oil for 28 years, latterly evaluating late- life strategic and decommissioning development solutions for the Brae Field.

Callum has been an independent consultant since June 2016, advising on decommissioning strategy and last year was appointed Chief Executive to the newly formed partnership Dundeecom.

He is very active within the industry and was on the board of Decom North Sea from 2011 until 2015, and was Chairman for the least 2 years of his tenure.

Callum is a member of the Institute of Directors.

Stuart Wordsworth

Specialist Advisors, Consultants & Project Managers

Stuart Wordsworth | Cavendish Management Consultants Ltd - Director

With over 23 years in the Upstream O&G market, Stuart has spent the most recent 11 years focusing on decommissioning and abandonment. He currently contracts for a number of clients - both E&P and supply chain - through this consultancy, Cavendish Management Consultants Limited.

Prior to this his main focus was supporting Repsol-Sinopec Resources Ltd with a variety of initiatives. He initially took the position of Well Decommissioning Project Manager on the Beatrice Field, before moving into a Strategy and Liaison role looking across the portfolio, before latterly taking the role of Subsea Well Abandonment Delivery Lead. During his time at RSR he also helped build an in-house well abandonment department, and was involved in setting up many of the management systems required to handle late life / abandonment well operations.  Prior to Repsol-Sinopec he held the global remit for late life well operations for a tier one contractor. Stuarts rejoins the DNS board having held this position previously for 6 1.2 years leading up to Q1 2018. 

He is also currently the vice-chair of the EEEGR/DNS Reuse and Decommissioning SIG.

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Decom North Sea membership gives you and your team access to networking, events, and knowledge to help you build connections and grow your business in the decommissioning sector. Join our global membership and boost your business.

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