Partner

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 Mayer Brown and Global Head of the firm’s Energy Team. 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 based 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

  • Recognized as Band 1 in Energy & Natural Resources: Oil & Gas by Chambers & Partners, including Chambers Brazil and Chambers Global (2007–2026).
  • Recognized in The Legal 500 Latin America’s Hall of Fame for Hydrocarbons (2023–2026).
  • Recognized as Tier 1: Global Elite Thought Leader for Oil & Gas – Brazil in the Lexology Index: Energy 2026.
  • Named Lawyer of the Year – Oil & Gas at The Latin American Lawyer Energy & Infrastructure Awards 2026.
  • Named Lawyer of the Year – M&A Energy at The Latin American Lawyer Energy & Infrastructure Awards 2024.
  • Recognized in the Latin Lawyer 250 among the leading legal practitioners in Latin America.
  • Named among the key practitioners in the Leaders League Brazil rankings: Leading in Oil & Gas; Leading in Corporate/M&A: Large-Cap Transactions; and Excellent in Project Development.

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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