Partner

Member of Management Advisory Board, Global Head of Energy

Alexandre R. Chequer

Global Energy, Corporate and M&A, Projects and Infrastructure

"We can always count on Alexandre to provide the highest level of commercial awareness and vision in the oil and gas industry."
CHAMBERS AND PARTNERS 2026

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.

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.

Related Services & Industries

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

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)
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