Practice Expertise

  • Natural Resources

Areas of Practice

  • Natural Resources

WSG Practice Industries

WSG Leadership

  • Energy Group - Member
  • Mining Group - Member


Marianna is a director and the head of the firm’s Oil & Gas and Mining Practice Group. Marianna advises clients around the world on the operations and corporate transactions of upstream, midstream, or downstream energy companies. She has substantial experience advising companies in the oil & gas and petrochemical sectors. She has been involved in major upstream, midstream, and downstream projects in Latin America, advising in the negotiation and drafting of the relevant contracts. Marianna has advised clients in the negotiation, creation, and financing of joint ventures for the development of hydrocarbons and petrochemical activities and the processing of gas in Venezuela and Colombia.

Marianna was the senior legal counsel at Shell Venezuela, actively participating in the downstream business for the production of oil by-products. Additionally, she was an in-house attorney in secondment for the legal department of Repsol and ChevronTexaco in Venezuela, where she provided business-focused advice and gained on-site experience. Marianna actively participates in several binational chambers of commerce and associations of industry and trade; she is currently the vice president of the Board of Directors of the Colombian-Canadian Chamber of Commerce and the director of the Extractive Committee of the Colombian-Canadian Chamber of Commerce. Marianna is also a member of the Latin America Regional Executive Committee Association of International Petroleum Negotiators (AIPN).

Marianna graduated cum laude from Universidad Católica Andrés Bello in Caracas, Venezuela, and holds a master’s degree in business law from Universidad Francisco Vitoria in Madrid, Spain. She also holds a master’s degree in legal practice from Instituto Superior de Derecho y Economía (ISDE) in Madrid, Spain. Marianna is a transnational attorney authorized to practice in Venezuela and Colombia.

Bar Admissions
Admitted to practice law in Venezuela and Colombia

University: Instituto Superior de Derecho y Economía (ISDE)
Program: Master in Legal Practice
Degree: Master in Legal Practice
Year: 2011

University: Universidad Francisco de Vitoria
Program: Master in Business Law
Degree: Master
Year: 2004

University: Universidad Católica Andrés Bello (Venezuela)
Program: Law
Degree: Attorney
Year: 1999

Areas of Practice

  • Natural Resources

Professional Career

Professional Associations
  • International Bar Association
  • Association of International Petroleum Negotiators
  • Prospectors And Developers Association Canada

Professional Activities and Experience
Firm: Brigard Urrutia
Position: Director
Entry Year: 2014

Experience abroad
Firm: Hogan Lovells
Position: Senior Associate
Year: 2006 - 2014

Experience abroad
Firm: Palacios, Ortega y Asociados
Position: Associate
Year: 2005 - 2006

Experience abroad
Firm: Shell Venezuela
Position: Senior Legal Counsel
Year: 2003 - 2004

Experience abroad
Firm: Macleod Dixon
Position: Associate
Year: 1998 - 2003

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