Tauil & Chequer Advogados in association with Mayer Brown is one of the leading energy firms in Brazil with a long-standing presence and a particular reputation in the oil and gas markets.  In the late 1990’s, the lawyers at T&C were responsible for drafting the Petroleum Law, the Brazilian Concession Agreement model form and the Government Take Decree.

Since then we have represented both national and international oil and gas companies in Brazil and elsewhere in connection with a wide variety of legal matters, including their investments in Brazil, M&A and farm in/farm out transactions, project development as well as tax, regulatory, labor and litigation matters.  We represent clients with operations around the world, including Africa. 

For years we have advised major participants in the energy sector across the entire spectrum of their operations and have acted as counsel of choice with regard to significant transactions and litigation matters. Our Energy practice includes attorneys from the key disciplines of finance, corporate, securities, tax, environment, trade and energy regulation and dispute resolution.

We advise clients in the following energy sectors:

Oil and Gas

  • Exploration & Production
  • Midstream
  • Downstream
  • Pipeline
  • Liquefied Natural Gas (LNG)
  • Petrochemicals


  • Electric
  • Natural gas
  • Transmission
  • Coal
  • Nuclear

Renewable Energy

  • Wind
  • Solar
  • Biomass
  • Hydro
  • Geothermal
  • Waste-to-Energy

Through our association with Mayer Brown, we draw together talent from our offices around the world, including the principal energy and energy finance centers of London, New York, Houston, Hong Kong, Beijing, Rio de Janeiro and São Paulo.

Our Brazilian lawyers is highly regarded for their excellent experience in Brazil, Colombia, Peru, Venezuela, Bolivia, Argentina, Angola, Mozambique and elsewhere around the world.


Chambers Latin America 2018
Esteemed firm with strong international capabilities and an impressive track record in high-end upstream and downstream transactions. Admired for its regulatory practice and has noted strengths assisting with cross-border tax issues. Broad practice includes farm-in and farm-out deals, corporate restructuring, labour work and disputes representation. Additionally valued for its experience in large-scale LNG projects.

"The team's main strengths are its in-depth knowledge of the legal and tax complexities of Brazil and their highly qualified lawyers who have developed positive relationships by working with the major authorities and stakeholders of Brazil."

Chambers Latin America 2017
Well-regarded team offering long-standing expertise in oil and gas matters, regularly advising major players in the market. Admired for its regulatory practice and has noted strengths assisting with tax issues, with distinguished cross-border abilities. Broad practice includes farm-in and farm-out deals, labour work and disputes representation. "The team has experience and industry knowledge and is always available to attend our requirements and questions. The lawyers have global expertise."

The Legal 500 2017
The power team at Tauil & Chequer Advogados in association with Mayer Brown has 'a business-oriented approach to legal issues and deep knowledge of the industry'.

A highly recommended firm for oil and gas work in Brazil, Tauil & Chequer Advogados in association with Mayer Brown also has excellent international exposure.

Chambers Latin America 2016
"The team is very strong and experienced in regulatory and contractual matters."

The Legal 500 2016
Tauil & Chequer Advogados in association with Mayer Brown is "always one step ahead on all matters related to the oil-and-gas industry, providing anticipated solutions and outlooks." The ‘well-connected’ team, which is led by Alexandre Chequer, grew in February 2016 with the addition of oil-and-gas specialist Paulo Almeida Lopes and senior counsel Claudia Pitta Pinheiro, formerly name partners at Almeida Lopes & Pitta Pinheiro Advogados 

Chambers Latin America 2015
"They provide insightful analysis and possess knowledge and experience of local and international oil and gas regulations."

The Legal 500 2015
"Expertise in oil-and-gas taxation is widely considered unsurpassed in Brazil, and its international taxation practice also impresses." "Better known for its oil-and-gas expertise, Tauil & Chequer Advogados in association with Mayer Brown also has a strong profile for power work." "With great international reach, Tauil & Chequer Advogados in association with Mayer Brown is particularly strong on the M&A and financing."

Chambers Latin America 2014
"The team is hands-on, available and provides clear and detailed advice." "The firm stands out for its local and international knowledge of the oil and gas industry and its broad range of supporting practice areas."

IFLR1000 2014
"Our main oil and gas competitor." "They are a good firm that’s a well-known and traditional player in the market. [The firm is] a very interesting, very strong and high-level player without a doubt." "The team has an excellent expertise and knowledge in the energy and infrastructure sector, making the law firm a great choice for oil and gas companies." "I am impressed with their knowledge and expertise. They are always very diligent, answer my requests quickly and are available to attend meetings to better discuss the strategy that should be adopted." "What sets Tauil & Chequer apart is its expertise with foreign companies, a fact that allows them to provide better advice to foreign companies and explain to them the differences of the Brazilian market."