PUBLIC TRANSLATION OF EXTENSION AGREEMENT--------------------- MEMORANDUM OF AG REEMENT------------------------------------------------------------------------Memorandum of Agreement • August 7th, 2009 • Apco Oil & Gas International Inc • Crude petroleum & natural gas • Neuquén
On June 11, 2009 in the city of Neuquén, a meeting is held between, on behalf of the Province of Neuquén, the members of the Renegotiation Technical Commission set up by Executive Order number 822/2008 and Resolution of the State Secretariat of Natural Resources number 104/08, Mr. Héctor Mendiberri, Mr. Juan Carlos Nayar, Mr. Alex Valdez, Mr. José Gabriel López and Mr. Ricardo Dardo Esquivel domiciled at Rioja 229 of the city of Neuquén (hereinafter the “PROVINCE”), one party, and Petrolera Entre Lomas S.A. (hereinafter “ PELSA”), herein represented by Oscar Aníbal Vicente and José Pantano, domiciled at Bouchard 680, 18th Floor, City of Buenos Aires, Petrobras Energia S.A., herein represented by Mr. Marcelo Daniel Sampataro, domiciled at Maipú 1, 22nd. Floor, City of Buenos Aires, and APCO Argentina, herein represented by Mr. Mr. Ernesto Alejandro Hermo, domiciled at Libertador 498, 26th Floor , City of Buenos Aires (hereinafter all of them jointly referred to as the “COMPANIES” and in
