Partner
Member of Management Advisory Board, Global Head of Energy
Alexandre R. Chequer
Global Energy, Corporate and M&A, Projects and Infrastructure
Overview
Alexandre R. Chequer is a partner at the global firm Mayer Brown. He is global head of the Energy Team and also is a member of the firm’s Management Advisory Board. He focuses his practice on oil and gas and energy transactions, regulatory and project development, with more than 25 years of experience representing oil and gas and energy companies in Brazil, Latin America, Africa and Asia. He is located in both Houston and Rio de Janeiro.
For over a decade, Alex has maintained his position as a top-ranked legal expert in the Oil & Gas sector and has been ranked by prestigious legal publications Chambers Brazil and Chambers Global every year since 2007. His exceptional work in the Oil & Gas sector has recently earned him further accolades, including his induction into The Legal 500: Latin America’s “Hall of Fame” for the “Hydrocarbons” ranking. He was also recently recognized as Lawyer of the Year – M&A Energy at The Latin American Lawyer Energy & Infrastructure Awards.
Alex’s experience highlights his versatility and flexibility. The broad range of his work includes mergers and acquisitions, privatizations, capital markets transactions, regulatory and project development of large infrastructure projects, including LNG, GTL, Gas to Power, nuclear energy, pipelines, FPSOs and refineries, unitizations, exploration, development, and production operations, production-sharing contracts, host-government negotiations and dispute resolution (litigation, arbitration, and expert testimony). His recent work encompasses some of the largest energy M&A transactions in Latin American history, landmark privatizations, and precedent-setting international arbitrations.
Experience
Alex has represented major oil and gas companies, sovereign entities, energy conglomerates, financial institutions and infrastructure investors across a wide range of landmark transactions and projects. His notable clients and engagements have included, among others:
M&A Transactions:
- Advised Ecopetrol S.A. on its agreement to acquire a 26% equity stake in Brava Energia S.A. – Brazil’s second-largest independent oil and gas company by reserves and production – through the private acquisition of 120,813,490 shares from shareholders Jive, Yellowstone and Bloco Somah Printemps Quantum.
- Advised PETRONAS in the $450 million divestment of its 50 percent non-operated interest in the Tartaruga Verde and Espadarte (Module III) offshore fields in Brazil’s Campos Basin, ultimately acquired by Petrobras through the exercise of its preemption rights.
- Advised PETRONAS on the USD 1.5 billion sale of 100% of PETRONAS E&P Argentina S.A. (PEPASA) to Vista Energy – holding a 50% working interest in the La Amarga Chica concession in the Vaca Muerta formation, Argentina. Landmark cross-border transaction across Argentina, Canada, Malaysia, the US, the UK and Brazil. Structured through cash consideration, deferred payments and equity components. Closed April 2025.
- Advised PRIO on two sequential cross-border acquisitions totaling approximately $5.4 billion, involving the Peregrino and Pitangola oil fields in the Campos Basin. Most recently, the firm advised PRIO on the $3.5 billion acquisition of Equinor’s 60% stake and the transfer of operatorship of the assets. Previously, the firm advised PRIO on the $1.9 billion acquisition of Sinochem Petroleum Netherlands, which indirectly held a 40% participating interest in the fields. Both transactions involved complex coordination across multiple jurisdictions, including Brazil, the United States, the United Kingdom and Hong Kong. These were the largest energy M&A transactions in Latin America in 2025.
- Advised BNDES on the privatization of Eletrobras (now Axia Energia), the largest electric energy company in Latin America, by means of a complex corporate restructuring and public offering of shares in Brazil and abroad, worth R$ 33.7 billion. This was the second largest privatization ever in Brazil and the largest by means of a public offering. Awarded as “Deal of the Year: 2022” by Latin Finance (Equity Follow-On of the Year), by Latin Lawyer 2023 (Capital Markets) and as “Deal of the Year: 2024” by The Legal 500 Awards Brazil.
- Advised Eletrobras (now Axia Energia) on the BRL4.7 billion sale of the remaining portion of its thermoelectric power plant portfolio to Âmbar Energia. The transaction involved 13 thermoelectric plants located across multiple states. For Âmbar, the deal marks a business expansion into two new states and increases its installed capacity to 4.6 gigawatts. For Eletrobras, the divestment aligns with the continued implementation of its decarbonization strategy.
- Advising Eletrobras (now Axia Energia) and its subsidiary Eletronuclear on legal, regulatory, and tax matters related to the Angra 1, 2, and 3 nuclear power plants. This is a landmark case in Brazil and Latin America, reflecting the complexity and strategic significance of the nuclear energy sector and highlighting the project’s pioneering role in advancing regulatory, tax, and technological developments within this essential industry.
- Advised GDF International, Engie Brasil Energia, and Caisse de dépôt et placement du Québec (CDPQ) onthe USD 8.6 billion acquisition of a 90% stake in Transportadora Associada de Gás (TAG), the largest natural gas pipeline operator in Brazil, from Petrobras. Advised on corporate, regulatory, tax, compliance, litigation, real estate, labor, environmental, and antitrust matters. Recognized by LatinFinance as the 2019 “Cross Border M&A Deal of the Year” and by Latin Lawyer as the 2019 “Deal of the Year.” Advised on the BRL 1 billion acquisition of Petrobras’s remaining 10% stake in TAG, consolidating their ownership and reinforcing their presence in Brazil’s natural gas infrastructure market.
- Advised on the largest M&A transaction in the Brazilian power industry and Latin America’s largest renewable energy deal of 2023: ENGIE Brasil’s acquisition of Atlas Energia Renovável do Brasil and Atlas Brasil Energia Holding 2 for approximately BRL 3.24 billion. The deal was recognized as the Impact Deal of the Year by the ITR Americas Tax Awards, organized by the International Tax Review (ITR), and received the IJGlobal Market Impact Award – Latin America.
- Advised Infra Gás on the approximately BRL 1 billion acquisition of several gas distribution companies in Brazil’s Northeast region, acquired by Compass (Cosan Group) from Petrobras in the context of antitrust proceedings before CADE.
- Advised PetroRecôncavo on the acquisition of Maha Energy, a company which operates the onshore oil and gas exploration fields of Tartaruga (Sergipe) and Tiê (Recôncavo), as well as four exploration blocks, for US$138 million in addition to the expected payment of earn-outs.
- Advised Eneva on the potential acquisition of Petrobras’ 100% participating interests in the Urucu Cluster,– comprising oil and gas fields, natural gas processing plants, storage facilities and associated logistics infrastructure in the State of Amazonas.
- Advised PetroRecôncavo on the public tender carried out by Petrobras for the assignment of concession rights over 28 onshore blocks comprising the Bahia Terra Cluster, including midstream assets.
- Advised Essar Services India in the divestment process of three Petrobras refineries (RLAM, RNEST and REFAP), including due diligence, review of transaction agreements and potential negotiation with Petrobras.
- Advised Transocean Offshore International on the potential acquisition from Sete Brasil of four oil and gas drilling units under construction at the Jurong Aracruz and Keppel FELS Brasil shipyards. Full-scope counsel covering contracts, compliance, reorganisation, financing, tax, ship finance, shipbuilding contracts, charterparty contracts and flag requirements. Cross-border matter involving Brazil, the Netherlands, Singapore and the United States.
- Advised AXIA Energia, one of the largest energy companies in Latin America, on a landmark transaction that enabled the distribution of R$30 billion in retained earnings, structured through an unprecedented corporate solution in the Brazilian market. A highly complex matter involving coordinated efforts across Brazil and the United States, highlighting both the evolution of the capital markets and the strength of our Global Energy team.
- Advised Eletrobras (now Axia Energia) on the merger of its wholly-owned subsidiary Furnas, with ~30 generation assets and 35,000 km of transmission lines. Comprehensive counsel covering due diligence, corporate governance, regulatory waivers before ANEEL, financial contracts, tax structuring, real estate and labour matters. A critical step in simplifying Eletrobras’ corporate structure pursuant to its business plan.
- Advised Grepar Participações in the public tender carried out by Petrobras for the sale of the lubricants and by-products refinery of the Northeast (Lubnor), as part of Petrobras’ broader refining divestment process. The engagement included the negotiation of the Share Purchase Agreement and all ancillary agreements, including logistic agreements with Transpetro, a crude oil purchase agreement, a Gas Sales Agreement, real estate agreements and a Transition Services Agreement.
- Advised Chevron on its acquisition of participating interests in offshore Blocks 9 and 10 in Suriname, in consortium with QatarEnergy and Petronas, including negotiation of PSCs, JOAs and coordination with Staatsolie. Previously represented Chevron in the transfer of Shell’s interest in Block 5 and its subsequent sale to QatarEnergy.
- Advised PRIO on the acquisition of the Albacora and Albacora Leste Fields, and related infrastructure, including FPSOs, from Petróleo Brasileiro S.A – Petrobras – in the context of the Petrobras divestment process.
- Advised QatarEnergy on the commercial and operational agreements in relation to the Sépia Field, as a result of the second Transfer of Rights Surplus Bid Round, including the Co-Participation between ToR and PSC, and the Unit involving ToR, PSC and Concession regimes. (USD 4,5 billion, considering the signature bonus and Petrobras compensation only).
- Advised Forbes & Manhattan on the acquisition of 100% of the stake held by Petrobras in Paraná Xisto S.A. (as operator of SIX) and associated infrastructure, including a mine located in one of the world’s largest reserves of oil shale, as well as a shale-processing plant. In addition to providing legal advice on complex transaction matters, we are representing F&M on several regulatory issues related to the acquisition, including negotiations with the ANP for the decommissioning guarantee to be offered by F&M.
- Advised Diatoms on the acquisition of equity interest in the Landulpho Alves Refinery and related storage terminal and pipeline infrastructure and other related assets from Petrobras in Bahia.
- Represented CNOOC in the landmark transaction of the Transfer of Rights Surplus Bid Round for the acquisition of Búzios field, located in Santos basis, the largest deepwater oilfield discovered in the world so far. The total amount paid by the consortium for the acquisition of the petroleum rights was R$69 billion.
- Represented Barra Energia in the sale of its 10% working interest to Equinor in the Carcará pre-salt area (BM-S-8 Block), offshore Santos Basin in the amount of USD390 million.
- Represented Wintershall Dea in the sale to Murphy Oil of a 30% non-operated participating interest in blocks POT-M-857, POT-M-863, POT-M-865 offshore in the State of Rio Grande do Norte, Brazil.
- Represented Chevron in a US$25 million sale of its 30-percent, non-operating stake of the Maromba field in the Campos basin block located in offshore Brazil waters to Oslo-listed FPSO operator BW Offshore.
- Represented Chevron in a US$450 million sale of its 51.74-percent operating stake of the Frade field in the Campos basin block located in offshore Brazil waters to PRIO, a Brazilian independent oil and gas company.
- Represented Rowan Companies (Valaris) in the acquisition of two jack-up rigs from Petrobras Netherlands B.V. At the time of the acquisition by Petrobras, the two rigs were an investment of approximately USD 360 million per rig.
- Represented Total S.A. in the acquisition of approximately US$ 2.2 billion in assets from Petrobras’ divestment plan. The transaction involved assignment of participating interest in Iara and Lapa pre-salt fields (Santos Basin) from Petrobras to Total; option of assignment of participation in Perdido Foldbelt (Gulf of Mexico) from Total to Petrobras; sharing of capacity of Petrobras’ regasification terminal; and acquisition of equity participation by Total in Rômulo de Almeida and Celso Furtado power plants (Bahia).
- Represented Chevron in the analysis and acquisition of Pre-Salt Blocks in the 4th and 5th Pre-Salt Bid Rounds in the amount of R$3.2 billion.
- Represented SK Energy in the US$2.4 billion sale of its Brazilian assets to Maersk olie ag gas a/s.
- Represented the PTTEP in the acquisition of a 20 percent participating interest from Shell Brasil Petroleo Ltda in Concession BM-ES-23 in Brazil.
- Represented Parnaíba Gás Natural S.A. (ENEVA), the largest natural gas E&P company in Brazil, in the acquisition of 50% participating interest held by Delp Engenharia Mecânica S.A. (16.665%), Imetame Energia S.A. (16.7%) and Orteng Equipamentos e Sistemas (16.665%) in the BT-PN-1 Concession (Parnaíba Basin).
- Represented Sonangol in the negotiation of contracts for exploration and production of petroleum in the Quaiyarah and Najmah contract areas in Iraq in the amount of USD1 billion.
- Represented Ecopetrol, in its first project in Africa, in the acquisition of Statoil’s 10% participating interest in Blocks 38/11 and 39/11 (Kwanza Basin), located offshore Angola.
- Represented MIR STEEL, a company based in the United Kingdom and owned by a Russian billionaire, in a US$800 million deal for the formation of a joint venture with Companhia Siderúrgica do Pará – Cosipar, in the State of Para, Brazil.
- Represented JX Nippon Oil & Gas Exploration (Brasil) Ltda. in (i) the evaluation of the relevant documents regarding the participating interest in Block FZA-M-320 offered by Ecopetrol Óleo e Gás do Brasil Ltda.; (ii) the submission of an offer to Ecopetrol Óleo e Gás do Brasil Ltda. for the participating interest as defined by the JX Nippon after the evaluation and due diligence processes; (iii) the formation of a consortium to hold interest in such asset; and (iv) the preparation of the relevant documents to be executed by the parties and filed with the National Agency of Petroleum, Natural Gas and Biofuels (ANP), in Brazil.
- Represented Sonangol in the acquisition of the Luanda refinery plus exploration and production rights of the Blocks 15/06 and 17/06 from Total in the amount of US$1.3 billion.
- Represented Mitsui in the acquisition of shares to consolidate its position as the controlling shareholder of a Swiss company that owns the totality of the shares issued by a leading Brazilian agribusiness company in the amount of US$1 billion.
- Represented a major Maersk olie ag gas a/s in the acquisition of exploration and production rights of Block BM-C 34 from BP, in the pre-salt layer in Brazil, valued at US$300million.
- Represented Encana Corporation in the sale of Encana Brazil for Hydro ASA, valued at US$350 million in Brazil.
- Represented a major Maersk olie ag gas a/s in the sale of a 20% participating interest and transfer of operatorship to OGX in Concessions BM-C-37 and BM-C-38 in Brazil.
- Represented Vale S.A. on the assignment to GDF Suez E&P International S.A. of 20% participation in concessions BT-PN-2 and BT-PN-3 (Parnaíba Basin).
- Represented Petrobras in the post-closing issues of Transportadora de Gas del Sur in the $1.8 billion acquisition of Perez Companc in Argentina.
- Represented Cameron (Schlumberger) in the due diligence and negotiation involving the acquisition of a Brazilian manufacturer of onshore/offshore valves and wellhead equipment in Brazil.
- Represented BP in the acquisition of a 40% participating interest from Petrobras in four blocks in the Equatorial Margin, Brazil.
- Advising Eneva in a proposed partnership with Petro-Victory for the exploration, development and commercialisation of non-associated gas resources in the Bom Gosto/Arpoador formation. Designing and implementing a bespoke contractual and regulatory structure to address unique challenges arising from Eneva’s non-operator participation in exploratory activities.
- Advised BP on its main downstream fuel distribution project in Brazil, including drafting and negotiation of the Take or Pay Agreement for diesel and biodiesel storage, obtainment of federal, state and municipal licenses, ANP licensing procedures and corporate coordination.
- Advised PETRONAS on the negotiation of a Natural Gas Sale and Purchase Agreement with Petrobras for the gas volume produced by PETRONAS in the Tartaruga Verde Field in the Campos Basin, where both parties held 50% participating interests.
- Advised BP Gas & Power on the development of an integrated LNG-to-power project at the Port of Pecém, Ceará,comprising a thermal power plant with up to 2.1 GW capacity, a regasification terminal, integrated gas pipeline and transmission line. Counsel covering regulatory framework (power, gas, maritime, port), project agreements, business modelling, tax structuring and negotiation of a Joint Development Agreement. Cross-border matter involving Brazil and the United Kingdom.
- Advised Karadeniz Group on all corporate, contractual, regulatory (energy, gas, maritime, port, environmental), tax, labor, immigration and real estate issues related to floating thermoelectric plants – UTE Karkey 013, UTE Karkey 019, UTE Porsud I and UTE Porsud II – that were winners of the 2021 Emergency Auction.
- Representing Eneva in the structuring and development of the integrated reservoir-to-wire project UTE Jaguatirica with installed capacity of 117 MW in the State of Roraima. Eneva will produce, process and liquefy the gas from the Azulão Field in the State of Amazonas and transport the LNG through trucks for 1000km to UTE Jaguatirica.
- Advised PECOM – Grupo Perez Companc on the negotiation of a Management, Operation and Maintenance Agreement with 3R Petroleum for the oilfields comprising the Rio Ventura Cluster in Bahia, acquired by 3R from Petrobras. A milestone for PECOM’s international expansion strategy in Latin America.
- Representing CNPC in the development of the giant Mozambique LNG Project.
- Representing CNOOC in all aspects for the development of the giant Libra oil field in Brazil.
- Representing Golar Power in the development of the Barcarena gas to power project in Brazil.
- Represented GE Energy Financial Services in the modeling and implementation of a gas-to-power project in the State of Sergipe, Brazil with investments over R$5 billion.
- Represented Norsk Hydro in the structuring of an LNG project, which consists in the importation of LNG to be regasified in an FSRU terminal or a regasification plant, which will provide gas to an alumina refinery and potentially to other customers, including thermo power plants.
- Represented Sonangol in one of the largest integrated LNG projects in the world, the Angola LNG project, with investments of more than US$10 billion in Angola and the US.
- Represented Rowan Companies (Valaris) in the organization of its operations and negotiation of drilling contracts in Angola, Mexico and Egypt.
- Represented Weatherford International in the negotiation and organization of 2 joint ventures in Angola for the construction of manufacturing facilities with investments of more than US$100 million.
- Represented Petrobras in the negotiation of joint ventures and in the analysis of two “Contratos de Serviços Múltiplos” for the exploration and production of natural gas in Fronterizo and Cuervito blocks Mexico, for the total amount of US$525 million.
- Represented SINOPEC in a US$1.3 billion fertilizer plant on the border of Brazil and Bolivia.
- Represented a project developer of the first ethanol pipeline project in Brazil, valued at US$1.1 billion.
- Represented SINOPEC in the construction of a US$2 billion pipeline project in Brazil.
- Represented Sonangol in the project development of a US$1 billion regasification plant in Louisiana, USA.
- Represented Petrobras in the construction and acquisition of power plants in Brazil, Venezuela and Mexico.
- Represented Petrobras in negotiating joint ventures, mergers and acquisitions and regulatory issues in Brazil, Argentina, Venezuela, Colombia, Angola and Nigeria.
- Represented TEXACO (Chevron) in the due diligence of the privatization of a natural gas utility in the State of Rio de Janeiro, Brazil.
- Represented Weatherford International in the negotiation and organization of a joint venture in Argentina with investments of more than US$70 million.
- Represented Occidental Oil and Gas Corporation in the negotiation of two PSAs and JOAs with Sonangol EP in Angola.
- Represented PRIO in a USD 637.7 million ICC arbitration brought by IBV (a JV of two Indian companies) over alleged breaches of the JOA for the Wahoo Field in the Campos Basin pre-salt area. The dispute involved complex industry-specific issues, including operator duties and field development strategies. The tribunal issued a favourable award dismissing all of IBV's claims and ordering reimbursement of PRIO's costs. The outcome sets a globally relevant precedent for JOA interpretation. Currently advising on post-award regulatory implications.
- Advised BP Brasil on a highly complex profit oil assessment under the Production-Sharing Contract for Alto de Cabo Frio Central, with material impact on project economics and the client's decision on whether to proceed with the production phase.
- Advised Origem Energia – one of Brazil's leading independent onshore operators – in administrative proceedings before ANP to lift interdictions on production units in the Alagoas cluster. The interdictions had halted operations at the Pilar and Furado stations. Successfully resumed oil and gas production through preparation of compliance documentation, implementation of safety management programs and direct negotiation with the agency.
- Advised Potaśsio do Brasil on the environmental licensing process for the Autazes Project, including the successful obtainment of the Installation License (LI) issued by the Amazonas Environmental Protection Institute (IPAAM), enabling the commencement of mining works and construction of the project's infrastructure. The project involves the exploration of potassium chloride (sylvinite) in the State of Amazonas and represents an estimated US$3 billion investment, with significant impact on Brazil's domestic fertilizer production capacity.
- Advised Transportadora Associada de Gás S.A. (TAG) – Latin America's largest natural gas transportation company – on complex regulatory matters before MME and ANP, including sanctioning proceedings and qualification of the GASFOR II pipeline as a priority construction project. Also advised on the preparation and approval of the first Gas Supply Agreement in the interruptible modality under Brazil's New Gas Market framework.
- Represented McDermott International in connection with a potential dispute with Petrobras regarding the delay in the execution of the Tupi WAG Full Field Contract, valued at approximately USD 800 million. The representation also included the defense of McDermott's interests in the administrative proceeding initiated by Petrobras to assess the application of sanctions on McDermott as a result of the non-execution of the contract. Represented cross-border matter involving Brazil and the United States.
- Represented Estaleiro Jurong Aracruz ("EJA") in the administrative proceeding initiated by Petrobras to evaluate the application of sanctions on EJA as a result of the alleged underperformance of water injection pumps supplied under the EPCI Contract for the FPSOs P-68 and P-71. Petrobras alleged technical failures in the equipment which affected its oil exploration activities. The work included the elaboration of a legal memorandum on EJA's chances of success and the drafting of the administrative defense. As the EPCI Contract is governed by New York law, the matter also involved the participation of Mayer Brown's New York-qualified lawyers. Cross-border matter involving Brazil and the United States.
- Advised Eneva in drafting and negotiating an unprecedented contract for the purchase and sale of small-scale Liquefied Natural Gas (LNG) by road transportation with Suzano. This was Eneva's first LNG supply contract with an industrial customer.
- Advised Storengy in the first white hydrogen project in Brazil, advising client before the Ministry of Mines and Energy (MME), the National Council of Energy Policy (CNPE), and the Brazilian Petroleum Agency (ANP).
- Represented the Minister of Mines and Energy of Brazil in the drafting of petroleum law, exploration and production agreement, the organization of the National Petroleum Agency, and several decrees for opening the oil and gas sector in Brazil.
- Represented PRIO in the first and successful negotiation for the reduction of royalties at the ANP. This is a leading case in Brazil.
- Represented CNOOC in connection with the third Pre-salt Bid Round and the sensitive discussion held with the Brazilian National Petroleum Agency – ANP during the qualification phase, as there was an understanding that all Chinese state-owned companies were under the same corporate control and, therefore, could not submit offers for the same area. We have convinced the ANP to change its understanding on this matter.
- Barra Energia in the first JOA forfeiture in Brazil with positive result in the arbitration award (exclusion of Dommo of the JOA due to defaults) against Dommo. This is a leading case in Brazil.
- Currently representing Exxon Mobil at the ANP in the legal matters arising out of a default of its partner (OGX) under the JOA and the Concession Contract.
- Represented Petronas in connection with the registrations and qualification processes for the second and third Pre-Salt Rounds and the 14th Concession Bid Round organized by ANP.
- Represented several national and international oil and gas exploration and production companies in connection with the qualification and bidding for exploratory blocks in the ANP Bid Rounds.
- Represented El Paso in the first unitization in Brazil on Block BM-CAL-04 with the concessionaire of Block BCAM-40, located in Camamu-Almada Basin, Brazil.
- Represented Total in connection with the Xerelete Field unitization, located in Campos Basin, Brasil.
- Represented Parnaíba Gás Natural S.A (ENEVA) in several Local Content waiver requests to ANP in connection with the procurement of drilling rigs for the company's exploration activities in certain concessions held by it in the Parnaíba Basin.
- Represented Maersk Oil in the negotiations of the preunitization agreement, the unitization agreement and the unit operating agreement for a field in Campos Basin, currently under development offshore Brazil.
- Represented GALP in connection with a unitization involving a concession area (Lula Field, one of the largest fields of the Brazilian pre-salt layer) that straddles onto an area of “onerous assignment” to Petrobras and an open acreage in the pre-salt area. Such unitization is a pioneer case in Brazil, since it involves three different E&P regimes – concession, production-sharing, and “onerous assignment.”
- Represented the Ministry of Petroleum of Angola in the negotiations of the cross-border unitization of Cabinda area with the government of the Democratic Republic of Congo.
- Represented Newfield Exploration Company in the first arbitration against the ANP under the Concession Agreement.
- Represented Petronas on issues arising from a proposed unitization arrangement with neighboring blocks in Su Tu Nau area in Vietnam, including the revision of the unitization agreement and joint development agreement, assessing the implications of conceding to new rules and regulations and its effects on the rights and obligations under the separate PSC of each block.
- Represented CNOOC in the qualification for the first Pre-salt Bid Round in Brazil and all actions related to the payment of the signature bonus and signing of the first Production-Sharing Agreement in Brazil – named 2013's Regulatory Deal of the Year by Latin Lawyer magazine.
- Represented Parnaiba Gas Natural S. A (ENEVA) in connection with regulatory issues related to the acquisition of another Brazilian independent oil and gas E&P case, in which for the first time the ANP accepted the return of Performance Guarantees from qualified Operators.
- Represented the Ministry of Petroleum of Angola on OPEC matters and on drafting a variety of legislation, including Angola's Gas Law, Biofuels Law and Downstream Law.
- Represented the Nigeria National Petroleum Corporation in the drafting of the Biofuels Law for Nigeria.
- Represented Sonangol in the drafting of a Decree Bill regarding amendments on the profit oil shares to Angolan Companies.
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Recognition
- Alexandre Chequer has a significant depth of expertise in the oil and gas space. He represents industry clients in complex M&A transactions and regulatory matters. A market observer says: "He has incredible business acumen." – Ranked as Band 1 for Energy & Natural Resources: Oil & Gas in Chambers Brazil, 2022 and Chambers Global
- Department leader Alexandre Chequer is the point of contact for several oil and gas companies in Latin America, Africa and Asia. He splits his time between the Rio de Janeiro and Houston office, and is seen with great regularity handling transactions, regulatory matters and project development of pipelines, refineries, gas-to-power and liquified natural gas (LNG). – Ranked as Hall of Fame for Energy And Natural Resources: Hydrocarbons in The Legal 500
- Ranked as Leading for Oil & Gas in Leaders League Brasil
- Ranked as Excellent for Projects & Infrastructure in Leaders League Brasil
- Ranked as Highly recommended for Mergers & acquisitions: Large-cap transactions in Leaders League Brasil
- Recognized in Energy in LACCA Approved
- “Alexandre Chequer is seasoned in M&A and joint ventures involving oil and gas players.” – The Legal 500) – Corporate/M&A
- “Alexandre Chequer is brilliant and, when he has an objective, he manages to achieve it in a confident and efficient way.” – The Legal 500
- Ranked as Thought Leaders for Energy in Who's Who Legal
- Ranked as Highly Regarded for M&A and Project development in IFLR
- Recognized in Corporate and UF - Rio de Janeiro in Análise Advocacia
- Respected head of department Alexandre Chequer is frequently sought out for representation in negotiations related to high-profile projects, M&A transactions and regulatory advice. A client says: "Alexandre is an excellent strategist and super experienced." Another client, who "contacts him just for complicated and big issues," concludes: "He is a fantastic lawyer." – Ranked as Band 1 for Energy & Natural Resources: Oil & Gas in Chambers Brazil, 2021 and Chambers Global
- Head of department Alexandre Chequer has an excellent reputation among players in the oil and gas market, with one client asserting: "Alexandre is very well connected and very focused on this practice area. His knowledge and experience really makes us feel like we are in safe hands." Clients, who regularly "ask for his help on major issues," note: "He sees the bigger picture and the critical aspects of the matters. He is proactive and knowledgeable." – Ranked as Band 2 for Energy & Natural Resources: Oil & Gas in Chambers Latin America and Chambers Global
- Seasoned founding partner Alexandre Chequer continues to be recognised within the market due to his expertise in high-end M&A transactions. He routinely advises prominent national and multinational players in connection with LNG projects and farm-out agreements. Chequer is also well equipped to assist with regulatory matters, bidding rounds and arbitration proceedings concerning sector-related contractual matters. In addition, he provides legal opinions to clients seeking to invest in the market. Chequer has notable expertise in lusophone Africa, particularly Angola, where he acts as external counsel to Sonangol. – Ranked as Band 2 for Energy & Natural Resources: Oil & Gas in Chambers Latin America, 2020 and Chambers Global, 2020
- "Name partner Alexandre Chequer heads the practice in São Paulo and earns praise as a talented rainmaker." – Latin Lawyer 250
- "Alexandre Chequer, who is renowned for his oil and gas expertise." – Latin Lawyer 250
- "Alexandre Chequer, who is the point man for a number of major clients and held in very high regard." – – Latin Lawyer 250
- He draws on his extensive track record to advise on major hydrocarbons projects. – Chambers Latin America
- "an incredibly knowledgeable lawyer who has provided us with brilliant and pragmatic advice," –Chambers Latin America
- "He is very responsive and has delivered on every single occasion." – Chambers Latin America
- "He is one of the most renowned lawyers in the oil and gas market." – Chambers Latin America
- Alexandre Chequer is well known for his expertise in the oil and gas industry and remains highly active in M&A, joint ventures and the development of upstream, midstream and downstream projects. He is additionally noted for his experience advising on heavy industries and LNG projects. – Chambers Latin America
- "heads the team and is considered to be a respected figure in the oil and gas sector" – Chambers Latin America
- "an excellent developer" – Chambers Latin America
- "accomplished lawyer" – Chambers Latin America
- "experience, knowledge and availability" – Chambers Latin America
- "is acknowledged in the market for his expertise in the oil and gas sector" – Chambers Latin America
- "He also has experience conducting joint ventures " – Chambers Latin America
- "He's able to handle and anticipate our needs [...] a very solid lawyer." – Chambers Latin America
- "A renowned dealmaker, able to be both a top rainmaker and an excellent technical lawyer. A great choice for oil & gas companies. They are always very diligent, answer my requests quickly and are available to attend meetings to improve the strategy that should be adopted. [...] excellent expertise." – Latin Lawyer 250
- "Alexandre Chequer is renowned for his oil and gas expertise." – Latin Lawyer
- "Alexandre Chequer is also prominent." – Latin Lawyer
- "Alexandre Chequer is point man for a number of major clients." – Latin Lawyer
- "Leading name.” – WWL
- "Alexandre Chequer is an acclaimed oil and gas lawyer who also stands out in infrastructure. He's very good at representing clients before the regulatory agencies," say sources, "and he puts all his resources into helping them achieve their goals." "Alexandre Chequer is much acclaimed for his industry expertise and focuses his practice on M&A, joint ventures and infrastructure development." "Alexandre Chequer wins clients praise as a superb relationship partner, who is very practical and energetic with a can-do attitude and an agreeable personality." – Chambers and Partners
- "Alexandre Chequer combines strong corporate and project expertise with deep knowledge of the Oil & Gas industry. He co-heads a gloal energy industry team across Mayer Brown." – Chambers and Partners
- "…rainmaker for oil and gas issues and is noted for his experience, technical knowledge and great client service..." "…outstanding lawyer with strong presence and real authority… he has in-depth knowledge and passion for the subject…" – Chambers and Partners
- "The 'exceptional' practice head Alexandre Chequer is 'extremely dedicated to clients' and a 'savvy negotiator'. Chequer 'understands how to mediate between Brazilian and international expectations'." –The Legal 500
- "Clients value his extensive knowledge of the Brazilian legal system and his ability to bridge the cultural gap for companies based abroad." – Chambers Directory 2011, Latin America’s Top Twenty Oil & Gas Experts
Education
- Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Bachelor of Law (JD equivalent)
Admissions
- Brazil
- Not admitted in Texas. Practicing under the supervision of firm principals.
Languages
- Portuguese
- English
- Spanish
Professional & Community Involvement
- Member, Board of the Association of International Petroleum Negotiators (AIPN), 2002-2006
- Member, Instituto Brasileiro de Petróleo e Gás (IBP)

