Results Notice for Petrobras Argentina Shares´ Offers

Buenos Aires, November 15, 2016. Pampa Energía S.A. (‘Pampa‘ or the ‘Company‘; NYSE: PAM; BCBA: PAMP) announces the results of its concurrent offers, which were ended on November 14, 2016 and figures are based on a count by SBS Trading S.A., the agent for the Argentine Offers, the International PESA Share Exchange Offer and the International Cash Tender Offer, and The Bank of New York Mellon, the agent for the International PESA ADS Exchange Offer, the results of the Offers are as follows:

Exchange Offers:

• Number of PESA Shares validly tendered and not withdrawn: 53,862,567 PESA Shares
• Number of PESA ADSs validly tendered and not withdrawn: 21,388,145 PESA ADSs

Cash Tender Offers:

• Number of PESA Shares validly tendered and not withdrawn: 311,669,706 PESA Shares

Based on these results, Pampa expects to issue 28,294,006 Pampa Shares and 4,493,649 Pampa ADSs pursuant to the Exchange Offers and pay approximately AR$3,233,105,695 pursuant to the Cash Tender Offers, in each case, net of applicable Argentine withholding taxes.
As a result of the Offers, upon settlement of the Offers, Pampa will own approximately 90.4% of all outstanding PESA Shares (including PESA Shares underlying PESA ADSs).
Settlement of the Exchange Offers and the Cash Tender Offers is anticipated to occur on November 21 and November 23, 2016, respectively.

For further information, contact:

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

Maipú 1, (C1084ABA), Buenos Aires, Argentina
Phone: +54 (11) 4344 6000
http://www.pampaenergia.com/ir
investor@pampaenergia.com