Chaco Petroleum Procurement Inc., Board of Directors meets regularly to discuss reviews and reports on the business and plans of the Company.

Main Responsibilities:

• • • Evaluate the performance of the company in accordance with its strategy, purposes, business plan and budget.
    • Approve the Annual Report.
    • Approve any major changes to the Company’s corporate structure, management and internal control.
    • Approve any significant changes in accounting policies or practices.
    • Appointment or removal of the Company Secretary.
    • Any other matter outside the scope of the powers and authority of the main shareholder, the chairman or delegated to the Board of Directors.

Proxy of YPFB Chaco S.A.: Jerry Harold Fletcher Torrico

Board of Directors:

• • • Gonzalo Ariel Galarza Daza – President
    • Susana Valeria Arce Campero – Secretary
    • Carmen Alejandra Salas Balderrama – Vice-President
    • Hernán Bravo Lemoine
    • Jaime Arancibia Dávila