Merger Completion

Release

Buenos Aires, August 15, 2018. Pampa Energía S.A. (‘Pampa’ or the ‘Company’; NYSE: PAM; ByMA: PAMP) informs that today was fully executed the swap of Pampa’s shares for the minority holdings of Petrolera Pampa S.A., Central Térmica Güemes S.A., Inversora Nihuiles S.A. and Inversora Diamante S.A., duly communicated on August 10, 2018.

As a result, the issued capital stock of Pampa increased from 1,938,368,431 to 2,082,690,514 ordinary shares, which net of the share repurchases made under the programs announced on April 27 and June 22, 2018, amounts to 1,938,715,514 ordinary shares as of today.

The finalization of this corporate reorganization is another key milestone in the history of Pampa, ending a process that started with the acquisition of former Petrobras Argentina S.A. back in May 2016, aiming to simplify and maximize the efficiency of the Company’s structure, derive significant operative efficiency, benefit from optimized use of available resources and the streamlining of technical, administrative and financial structures, among other improvements.

For further information, please contact:

Gustavo Mariani – Vice-President
Ricardo Torres – Vice-President
Mariano Batistella – Planning, Strategy and Affiliates Executive Director
Lida Wang – Investor Relations Officer

The Pampa Energía Building
Maipú 1, (C1084ABA), Buenos Aires, Argentina
Phone: +54 (11) 4344 6000
ri.pampaenergia.com/en
investor@pampaenergia.com