FEDERATIVE REPUBLIC OF BRAZIL MINISTRY OF MINES AND ENERGY CONCESSION CONTRACT FOR EXPLORATION AND PRODUCTION OF OIL AND NATURAL GAS NO ______ SIGNED BETWEEN BRAZILIAN NATIONAL AGENCY OF PETROLEUM, NATURAL GAS AND BIOFUELS - ANP and «Signa2» «Signa3»...March 21st, 2013FiledMarch 21st, 2013