Tayler Amatto

Tayler Amatto is an associate principal in Charles River Associates’ Energy Practice located in Calgary, where she advises clients on investment strategy, energy market participation, and long-term planning across North American electricity and fuel markets.

 

With a background in both consulting and private equity, Ms. Amatto brings over a decade of experience helping utilities, developers, and public sector agencies navigate market reform, deploy capital, and integrate large-scale energy loads. Her work is grounded in techno-economic analysis, resource adequacy planning, and commercial strategy development for emerging energy technologies.

 

Ms. Amatto has deep expertise in capacity and energy market reform, large-load integration—particularly for data centers and industrial decarbonization—and early-stage project development. She supports clients in market entry strategy, due diligence, and go/no-go investment decision-making for capital-intensive infrastructure, with a strong focus on energy transition and decarbonization investments. Her advisory work spans utilities, oil and gas, pipeline, agriculture, low-carbon fuels, and manufacturing sectors.

 

Before joining CRA, Ms. Amatto served as Senior Vice President at Azimuth Capital Management, a private equity firm focused on energy transition investments and held consulting roles at PwC Canada. She supported portfolio companies and clients with strategic planning, valuation, commercial structuring, and stakeholder engagement.

 

Ms. Amatto is a member of the Association of International Energy Negotiators (formerly the Association of International Petroleum Negotiators), an independent not-for-profit professional membership association that supports international energy negotiators around the world. She currently serves as a committee member for the Canada Chapter and is the region’s Women Negotiators lead.

 

In addition, Ms. Amatto serves as Vice President and Board Member of the Energy Leadership Institute, a nonprofit organization dedicated to building a community of connected and solutions-oriented leaders for the evolving energy sector.

 

Ms. Amatto holds a BA in Economics with a concentration in Energy Economics from the University of Calgary.

Carlos Bellorin

Carlos Bellorin is Executive Vice President, Energy Trends & Analysis at Welligence Energy Analytics, based in London. He focuses on global research across oil markets, corporate strategy, regulatory developments, and advisory services. Carlos provides strategic advice to companies, ministries, and hydrocarbons regulatory agencies on a wide range of upstream and policy-related matters.

 

Before joining Welligence, Carlos spent 15 years at S&P Global Commodity Insights as Associate Director. Earlier in his career, he worked as external legal counsel for oil and gas companies and served as in-house counsel on two major upstream developments in Venezuela’s Orinoco Oil Belt.

 

On the academic side, he has taught the “International and Comparative Petroleum Law and Contracts” module for nearly 15 years at Sciences Po in Paris and Queen Mary University of London. In 2023, he was appointed an Honorary Fellow at the University of Dundee’s Centre for Energy, Petroleum and Mineral Law and Policy (CEPMLP).

 

Carlos is a longstanding member of the AIEN, where he serves on the European Chapter Committee, the Educational Advisory Board, and the Editorial Committee of the Journal of World Energy Law & Business. He has helped organize multiple AIEN conferences and masterclasses, serving as both moderator and panelist, and actively engages his students at Sciences Po and Queen Mary University with AIEN initiatives.

 

Carlos holds a law degree from Venezuela’s Universidad Católica “Andrés Bello” and an LL.M. in Petroleum Law and Policy from the University of Dundee’s Centre for Energy, Petroleum and Mineral Law and Policy (CEPMLP).

Claudia Zacour

Claudia Zacour is General Manager, Gas and Energy Transition – Equity Investments and M&A Post-Closing Transactions at Petrobras.

 

Claudia is a lawyer specialized in the energy sector, holding postgraduate degrees in Petroleum from COPPEAD/UFRJ and Business Law from Universidade Candido Mendes. She began her career in law firms and the capital market. At Petrobras, she managed the Exploration and Production legal department, the Mergers and Acquisitions legal department, and later the Mergers and Acquisitions business department, overseeing the divestments portfolio and relations with governmental entities. In December 2019, Claudia became head of Corporate Governance at Petrobras. Since 2024, she has been managing the company’s equity investments in gas and energy transition assets, as well as the post-closing area of gas and energy M&A transactions.

 

Claudia is a longtime member of AIEN and former Board Member. She currently serves as the Latin America Chapter Alternate Regional Director and is a Co-Chair for AIEN’s 2025 NOC Conference in London.

Natalie Lonergan

Natalie Lonergan is a specialist energy lawyer and partner of Australian law firm Mills Oakley. Mills Oakley is an Australian national law firm with offices in every Australian capital city and several regional centres.

 

Natalie holds an LLM in Petroleum Law and Policy and has over 32 years international experience advising on cross border oil and gas transactions and projects. More recently she has also advised sponsors and developers on projects and transactions across CCS/CCUS, solar, wind (onshore and offshore), hydrogen, renewable fuels and energy storage.

 

Natalie is a lead of the AIEN Renewable Fuels Taskforce, a committee member of the AIEN Australia-Pacific Chapter and was a member of the AIEN CCUS and Hydrogen Taskforces. She played an active role on the organizing committee for AIEN CCUS Conferences held In Singapore in January 2024 and Perth in November 2024.

 

She is a member of the editorial committee of the Australian Energy Law Journal, regularly peer reviews articles for OGEL and guest lectures on oil and gas law at University of Sydney. Until recently, Natalie was also a specialist legal officer in the Australian Air Force reserve forces where she provided support on fuels procurement.

 

In her down time, Natalie is a keen skier and enjoys hiking mountain trails.

Alexey Nikulin

Alexey Nikulin is a senior legal leader and manager with deep international oil and gas and energy industry experience across high value projects and transactions. As a senior international lawyer, Alexey enjoys leading teams and projects and achieving the very best legal and commercial outcome for his team.

 

Alexey is currently a senior legal counsel with ADNOC Logistics & Services, based in Abu Dhabi.

 

Alexey has led and managed complex energy transactions and projects internationally, including in the Arctic, Kazakhstan, Brunei Darussalam, Africa, Western Europe and Latin America.

 

Alexey studied international trade law, with languages, in the Moscow State Institute of International Relations and then, as a British Chevening scholar, did an LL.M. in Cardiff University Law School in the UK.

 

Having read “The Prize” by Daniel Yergin in the final year of the University (which, and other books in the series, remain Alexey’s most favorite), Alexey decisively opted to work in the international energy industry.

 

Alexey joined the legal function of Shell Group as a graduate and worked on the complex projects for the Shell Group in Sakhalin, Kazakhstan, internationally out of the Hague and then out of Brunei Darussalam.

 

Alexey praises himself for being able to lead, manage and deliver projects of any grade of complexity and believes that the key to success is team work, resilience, as well as the ability to quickly master new areas of practice, build strong partnerships, cultural awareness and, importantly, the art of negotiation.

 

Over his assignments, Alexey had the privilege of leading and delivering some of the most challenging projects in the international energy industry.

 

Most recently, Alexey is proud to have led the transformation of CEPSA of Spain, formerly one of the leading Spanish oil and gas companies, with significant upstream assets internationally. With the adoption of the “Positive Motion” strategy, CEPSA set an ambitious goal to transform itself into a European and international champion in the renewable energies and specifically in hydrogen, biofuels and new mobility, which required divestment of CEPSA’s international upstream assets across different jurisdictions. Alexey was managing delivery of most of these transactions. CEPSA has become MOEVE and has completed the divestment of most of its upstream oil and gas assets.

 

Alexey is a keen member of AIEN and has participated as a speaker or moderator at a number of AIEN conferences.

 

While in Madrid, Alexey organized an AIEN event hosted by CEPSA on the topic of the energy transition and its impact on upstream business, which generated a lot of interest and was attended by the international industry reps from Spain, rest of Europe and beyond.

 

In 2024 – 2025,  Alexey was AIEN Europe Chapter Director, and in that capacity a member of AIEN Board of Directors.

 

Alexey has received multiple recognitions and awards for seamlessly leading and delivering projects and in recognition of his AIEN work.

 

Alexey remains actively involved in the work of AIEN. Alexey is a strong believer that AIEN is key in keeping and further developing international energy industry knowledge and brings significant value through development of most relevant templates for the international energy industry use, including most recently for CCUS, hydrogen and biofuels, as well as unrivalled networking opportunities.

 

“Working on international projects, it is always a fantastic moment to discover that a high quality (and value) commercial agreement (for example, a host government contract), was actually put in place by a fellow AIEN member you know. And that happens more often than you think!”

 

Alexey enjoys working in an international environment, leading by example and sharing knowledge and seeing the teams he leads grow and develop.

 

Alexey speaks and works in English, Spanish and Russian, has a knowledge of Dutch and is keen to master Arabic.

Taciana Peão Lopes

Taciana Peão Lopes is an accomplished legal and energy professional with over 23 years of experience in Mozambique’s energy sector. Her expertise spans legal and institutional frameworks, LNG, local content, and energy transition development. She holds an LL.M. in Energy Law from the North Sea Energy Law Programme and was awarded the 2022 Power Play Pioneer Award for her outstanding contributions to the LNG industry.

 

She is the Founding and Managing Partner of TPLA – Taciana Peão Lopes & Associados, a boutique law firm dedicated to supporting the development of sustainable energy and infrastructure projects that aim to bring transformational impact to Mozambique.

 

Taciana also serves as Chairman of the Board of MES – Mozambique Enterprise for Sustainability, a joint venture with DAI International that operates the MozUp Enterprise Development Center, sponsored by the Area 4 partners of the Rovuma LNG project, led by ExxonMobil. MozUp is a center of excellence that cultivates competitive Mozambican businesses, equipping them with transferable skills and knowledge to support local economic development. It is a multi-stakeholder platform connecting Mozambican businesses and international partners to emerging market opportunities, including those within the LNG supply chain.

 

An AIEN member since 2014 and part of the Africa Regional Chapter since 2021, Taciana brings to this work her deep legal expertise in negotiating energy-related instruments, her entrepreneurial vision, and a strong commitment to gender equality—helping Mozambican SMEs and professionals navigate and benefit from the energy transition value chain.

 

She is also the co-founder of MWE – Mozambique Women of Energy, an association dedicated to promoting women’s participation in the energy sector and aligned with Sustainable Development Goals 5 (gender equality) and 7 (affordable and clean energy). Through her initiatives, she is working to change the narrative of Mozambique and position it as a leader in the global energy transition.

 

Taciana is married to Mozambican composer and producer Joni Schwalbach and is the proud mother of four children.

Lyrna Esmeralda-Hewitt

Lyrna Esmeralda-Hewitt is Vice President for Business Development at Aboitiz Renewables Inc., the renewable arm of Aboitiz Power Corporation (AboitizPower). Since joining AboitizPower in October 2021, Lyrna has structured and negotiated renewable transactions and partnerships in the Philippines.

 

Prior to her present tenure at AboitizPower, Lyrna was briefly a Business Development Consultant at SCATEC ASA. She was also previously Head of Commercial for AC Energy, where she co-led the sell down of ACE Energy’s thermal platform to AboitizPower, and the acquisition of PHINMA Energy Corporation.

 

Before transitioning to renewables, Lyrna had a fulfilling career in the oil and gas sector mainly based in Singapore. She was Principal Economist for Senergy/Lloyd’s Register overseeing techno-commercial assessment and valuation of oil and gas assets globally. She was also Fiscal and Regulatory Manager of Deloitte Petroleum LLC, and Economist at Gaffney, Cline & Associates/Baker Hughes, Inc. She started her career as a Planning Analyst for the Philippine National Oil Company Exploration Corporation, an active member of the team that evaluated and successfully farmed into the Shell-Chevron partnership for the Malampaya Gas-to-Power-Project, giving birth to the natural gas industry in the Philippines.

 

Presently serving as Steering Section Head for AIEN’s Asia Chapter Regional Committee – Philippines Section, Lyrna was a former member of its Board of Directors, and was Regional Director for Asia from 2014-2017. She was awarded the prestigious President’s Award in 2017 for showing exemplary service to the AIEN and to the energy industry based on rigorous review of nominations from industry peers. She was on the Organizing Committee for the AIEN International Conference in Singapore in 2013 and was an active member of various sub-committees.

 

Lyrna is pursuing her Juris Doctor degree from the Aklan Catholic College. She holds an MBA from the Ateneo de Manila University and a BS Economics degree from the University of the Philippines.

 

She enjoys spending time off with her family. She is a farmer-entrepreneur at heart.

Randel Young

Randel R. Young is a Senior Consultant at Charles River Associates (CRA), where he focuses on the energy sector. Randel is a long-time member of Association of International Energy Negotiators having joined the organization in the early days of the Association of International Petroleum Negotiators in 1980s. He worked on the committee that produced the original model contract JOA in 1990 and has remained active over the years including as a member of the Corporate Affairs Committee for the last two years.

 

Randel has 45 years’ experience in the energy sector as a project transaction lawyer, M&A lawyer, regional general counsel, senior business executive, and commercial energy advisor. He has advised on U.S. and cross-border M&A transactions, emerging market privatizations, project development and finance transactions, joint bidding arrangements, joint investment and ownership structures, and other complex business arrangements in the electric power (generation, transmission and distribution sectors), oil and natural gas (upstream, midstream, downstream sectors), LNG, hydrogen, low-carbon fuels and petrochemicals and other products.

 

Randel has advised sellers, purchasers, developers, lenders, off-takers, owners and other energy stakeholders in the structuring, negotiation, acquisition, development, procurement, construction, operation, financing and disposition of energy facilities and other business assets and platforms across the energy sector. He has been involved in major energy projects and engagements in the United States, Latin America, Europe, the Middle East, North Africa, Sub-Saharan Africa, the Indian Subcontinent, and Central and Southeast Asia.

 

Prior to joining CRA as a senior commercial consultant in 2021 upon his retirement from over 40 years of law practice, Randel was a partner at the global law firm of K&L Gates, where, in addition to maintaining his U.S and global energy project and transaction practice, he served in senior management, including as oil and gas practice group coordinator, an energy, infrastructure, and resources practice area leader, and managing partner of the Houston office. In these leadership roles, he coordinated the practices of other lawyers with a focus on U.S. and global energy, infrastructure and resource projects and disputes. Randel served on K&L Gates’s global management committee and global advisory council.

 

From 1996 to 2001, Randel held senior management and legal positions at Enron Corporation and its subsidiaries, including as vice president and general counsel for Enron International and Enron South America, where he served on Enron’s regional executive and structuring and risk committees for the Southern Cone of South America. Randel’s executive and legal responsibilities included managing, evaluating and developing risk identification and mitigation plans for cross-border investment risks in connection with the acquisition, development, construction and operation of Enron’s integrated energy asset and business platform across the Southern Cone. He structured, negotiated and advised on, and worked on due diligence and evaluation teams for energy privatization, M&A, development and finance transactions and other commercial activities relating to Enron’s natural gas facilities, infrastructure and operations (transmission, distribution, processing and treatment), power facilities, infrastructure and operation (generation, transmission and distribution), and gas and power marketing and trading activities, in Brazil, Bolivia, Argentina, Colombia, Peru and Chile.

 

Randel lectures at Tulane Law School, where he has taught advanced law classes on structuring, development and execution of large-scale energy and resources projects. Since 2021, Randel has served as a distinguished research fellow and advisory director at the Tulane Center for Energy Law. He also serves on the Advisory Board of Stirling Infrastructure Partners, an investment bank based in London.

 

Randel has been listed in The International Who’s Who of Business Lawyers in three categories: M&A, Oil & Gas and Project Finance, and recognized for his work in two jurisdictions: Texas and the United Arab Emirates. Among other professional recognitions, in 2007, Randel was named one of five “Go-To Lawyers” in International Law by Texas Lawyer magazine.

 

Randel received his BA (summa cum laude, 1977) and his JD (cum laude, 1980) from the University of Houston. He also holds a Certificate in Advanced Arbitration Skills (Domestic and International) from the A. A. White Dispute Resolution Center in Houston.

 

Randel’s consulting expertise and expert testimony work are primarily focused on (i) energy projects and energy matters, (ii) energy and natural resource privatization, M&A and public and private bid transactions; (iii) joint ventures, joint development and joint operations (iv) commercial risk analysis and assessments on energy investments and strategies, (v) renewable energy projects, finance and economics, and (vi) gas, power, hydrogen and other energy commodity origination, trading and commercialization.

 

Randel has a global advisory practice, but his primary regional focus is currently on energy projects, developments and commercial activities in the United States and Canada, Latin America and the Caribbean Basin, the Middle East and North Africa and South Asia. He has also worked extensively in Sub-Saharan Africa and Southeast Asia.

 

Randel is licensed to practice law in Texas (1980). He is also a member of several professional associations focused on energy and natural resource projects and disputes, including the International Bar Association, the Institute for Transnational Arbitration and the Association of International Energy Negotiators.

 

Randel lives in Houston, Texas. He is based as a consultant in CRA’s headquarters in Boston but also works regularly in CRA’s Houston and London offices.

Ana Luiza Saboia

Ana Luiza Saboia de Freitas is a senior Consultant in new business and joint ventures contracts negotiation at PETROBRAS, with more than fifteen years of experience in the Brazilian Oil & Gas Industry. Ana Luiza has been in charge of some negotiations in the complex Brazilian environment, where different fiscal regimes may co-exist in the same area. Since 2012, Ana Luiza develops commercial solutions for upstream joint ventures to PETROBRAS and its coventurers, as well as negotiates some key contracts such as joint operating agreements, unit operating agreements, oil offtake agreements, production handling agreements. Ana is also in charge of training PETROBRAS staff in upstream joint venture management.

 

In June 2023, Ana Luiza was a panelist in the event “Complex Negotiations in the Energy Industry” – AIEN Latin America & Caribbean Chapter in Rio de Janeiro, that took place in the Brazilian Bar Association – Rio de Janeiro. Ana was one of the lead negotiators of the Sepia Project, that was awarded Venture of the Year at the AIEN 2024 International Energy Summit annual awards in Bangkok, Thailand.

 

Ana Luiza has a degree in Geology and is MSc. Environmental Engineering. From 2006 to 2011, Ana worked with produced water and upstream effluents final disposal at PETROBRAS, when she was part of the task force that developed a solution for monitoring water uses and wastewater final disposal in upstream operations. Before joining PETROBRAS staff, Ana worked as a Hydrogeologist in projects related to groundwater and watershed management, carried out in Brazil and La Plata Basin – South America.

 

Ana is a nature enthusiastic and in her spare time she loves hiking in the Atlantic Forest or in the Brazilian outback. She also loves spending time with her friends and listening to a good Brazilian music.

Mustafa Siddiqui

Mustafa is a commercially focused, value-driven energy professional with over 25 years of international leadership experience. He is currently a Director at Enerqui and a Partner at Pecten’s M&A practice. He has held diverse technical and commercial roles spanning acquisitions, divestitures, joint venture management, business planning, engineering, operations, and supply chain management. He has worked with top-tier companies such as Shell and Schlumberger on global investment projects across the Middle East, Africa, the Americas, Asia, and Europe.

 

He leverages his entrepreneurial mindset and deep understanding of business integration to align commercial, operational, and corporate goals to drive strategic sustainable growth and deliver value.

 

He has advised C-suite executives on investment portfolios, joint venture governance, and due diligence matters, enabling informed investment decisions for partnerships with public, private, international, and national energy companies. Mustafa has a proven track record of creating value in complex investments within challenging socio-economic and geopolitical environments, collaborating with cross-functional teams. He has experience in opportunity screening, valuation, due diligence, technical analysis, value assurance, integration, country entry and exit, venture formation, transaction support, and execution.

 

His career spans the oil and gas value chain, chemicals, renewables, hydrogen, carbon capture, and other sectors. Over the last several years, Mustafa has volunteered with the Association of International Energy Negotiators (AIEN), contributing to the development of model agreements for LNG, Gas, and Hydrogen Sales Purchase Agreements (SPAs), Joint Development and Operating Agreements (JOAs), and working groups on Carbon Capture and Storage (CCUS), Carbon Markets, hydrogen and low carbon energy.

 

Mustafa holds an MBA from the University of Chicago’s Booth School of Business, a Master’s in Petroleum Engineering from Texas A&M University, and a Bachelor’s in Mechanical Engineering. He is a registered professional engineer, a social entrepreneur in the health-tech space, and an angel investor in women and minority led, tech-enabled startups.