Mariana Ardizzone
Latin America Guide 2025
Band 2 : Energy & Natural Resources: Oil & Gas
Band 2
About
Provided by Mariana Ardizzone
Practice Areas
Mariana Ardizzone leads the firm's O&G practice, being one of the leading practitioners in the O&G industry in Argentina. She has structured several transnational gas pipeline and power generation projects in the Southern Cone of South America; advised on and negotiated major international swap of assets and shares involving refineries, E&P assets and retail stations; worked on the transfer of the largest acreage in Vaca Muerta ever divested and advised several successful international E&P startups in Argentina She regularly advises on M&As and complex regulatory matters in the E&NR industries.
Career
Prior to joining the firm, Ms. Ardizzone founded Ardizzone Abogados, was a partner with Maciel, Norman & Asociados and an in-house counsel at Bridas S.A.P.I.C. and Pan American Energy LLC.
Professional Memberships
She is admitted to practice law in the State of New York and in the City of Buenos Aires and is a member of the ABA and of the AIPN.
Personal
Mariana Ardizzone graduated in 1995 as an attorney from the Universidad de Buenos Aires, where she also obtained a Postgraduate degree in O&G law. In 1999, she obtained an LL.M. from the University of Michigan and in 2004, a Postgraduate degree in Energy Regulation and Business from the ITBA.
Chambers Review
Latin America
Well-regarded partner and head of department Mariana Ardizzone of Mitrani Caballero & Ruiz Moreno is acknowledged for her noteworthy oil and gas practice in Argentina.
Strengths
Provided by Chambers
"Mariana is always available and provides a full picture of the situation from historical, present and future point of view. It is a pleasure to work with her."
"Mariana is always available and provides a full picture of the situation from historical, present and future point of view. It is a pleasure to work with her."
Articles, highlights and press releases
2 items provided by Mitrani Caballero
Mitrani Caballero & Ruiz Moreno advises Echo Energy PLC in a US$ 8.5 million acquisition
Echo Energy PLC acquires 70% undivided interest in "Santa Cruz Sur Assets” from Petrolera El Trebol SA
Mitrani Caballero & Ruiz Moreno advises Southern Cross Group in the creation of Aleph
Mitrani Caballero & Ruiz Moreno advises Southern Cross Group in investment agreement entered into with Vista Oil & Gas and Riverstone to create Aleph, the first midstream company focused on Vaca Muerta
Mitrani Caballero & Ruiz Moreno advises Echo Energy PLC in a US$ 8.5 million acquisition
Echo Energy PLC acquires 70% undivided interest in "Santa Cruz Sur Assets” from Petrolera El Trebol SA
Mitrani Caballero & Ruiz Moreno advises Southern Cross Group in the creation of Aleph
Mitrani Caballero & Ruiz Moreno advises Southern Cross Group in investment agreement entered into with Vista Oil & Gas and Riverstone to create Aleph, the first midstream company focused on Vaca Muerta
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Mitrani Caballero
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