Exclusivity Agreement for the Sale of Pampa´s Stake in TGS

Exclusivity Agreement for the Sale of the Stake of the Company in Transportadora de Gas del Sur S.A.

Buenos Aires, April 22, 2016. Pampa Energía S.A. (‘Pampa’ or the ‘Company’; NYSE: PAM; Buenos Aires Stock Exchange: PAMP) informs that in connection with the relevant event issued on March 9, 2016, the Company has agreed with Harz Energy, a subsidiary of Grupo Neuss (the “Potential Buyer”, and together with the Company, the “Parties”) a 45-day exclusivity period (the “Exclusivity Period”) to complete the sale of the stake and rights that the Company, directly or indirectly, holds in Transportadora de Gas del Sur S.A. (“TGS”).

The Parties have agreed certain terms and commercial conditions, among others:

For further information, contact:

Ricardo Torres – Co-Chief Executive Officer
Gustavo Mariani – Co-Chief Executive Officer
Mariano Batistella – Special Projects Manager and Investor Relations Officer
Lida Wang – Chief of Investor Relations

3302 Ortiz de Ocampo, Building #4

(C1425DSR) Ciudad Autónoma de Buenos Aires, Argentina
Phone: +54 (11) 4809 9500