Pujante Hernaez
We are pioneers in providing legal services for Oil and Gas Industries.

To Get Our Proper Justice

Lowyer / Law Firm / Attorney


We are Pujante Hernaez Abogados, an argentine boutique firm based in Neuquén, at the heart of the oil and gas industry. We assist companies to plan and develop their businesses.
Our successful and extensive experience focus primary on corporate, oil and gas, mining and energy law. Pujante Hernaez Abogados is pioneer in providing legal services to companies developing exploration and production projects in the unconventional shale play known as Vaca Muerta. For instance, our lawyers have represented the company that successfully drilled the first multi-fracked horizontal well in Argentina.
Our ethic, experience and personal dedication is recognized in the local forum (we are a truly local firm) where we proudly provide an exclusive, high quality and efficient service for our clients.

Natalia Hernaez Galarraga

Lawyer (JD Universidad Nacional del Sur), specialized in Oil and Gas Law (Universidad de Buenos Aires) and member of different investigation think-tanks related to international law.
She began earning expertise in a clerkship for the Federal Prosecutor Office Nbr. 1 of Bahia Blanca and then worked in Buenos Aires as an associate for one of the most important firms (Marval, O’Farrell & Mairal) in the areas of corporate, finance and litigation.
Back in Neuquen she was a founding partner of Brillo Pujante Hernaez Abogados where she assisted international companies in corporate, oil and gas transactions, M&A and litigation. Mrs. Hernaez Galarraga is fluent in Spanish, French and English.

Ignacio J. Pujante

Lawyer (JD Universidad de Belgrano), specialized in Oil and Gas Law (Universidad de Buenos Aires, thesis with top grade) and LL.M. in International Law (Southern Methodist University – Dallas, Texas, awarded with scholarships from Rocky Mountain Mineral Law Foundation y the Association of International Petroleum Negotiators).
Mr. Pujante did an internship in Velarde & Machado Abogados, and then worked as in-house layer in different E&P companies like Pluspetrol S.A. (Buenos Aires), Pioneer Natural Resources (Dallas, TX), and Apache Corp. (Buenos Aires). He was a founding partner of de Brillo Pujante Hernaez Abogados (Neuquen).
He writes articles for local and foreign publications and is lecturer in oil and gas law programs. His peers nominated Mr. Pujante for three consecutive years for the short-list of the Who´s Who Legal international publication. He is fluent in Spanish and English.


More than 15 US companies listed in Fortune 500 (including two top ten) and other important Latin American, European and local companies trust in our services. Respecting their privacy is one of our most valued principles and therefore we do not publish their names. Our references are handed in personal interviews after a conflict of interest check-up is performed.