A rapidly expanding economy, a growing population, and rising global fuel costs, mean that questions over security and supply are inevitably affecting Brazilian energy planning, say Eduardo Soares, Débora Yanasse and Otávio Falchero, at Mattos Filho Veiga Filho Marrey Jr e Quiroga Advogados (MF), Nuno Galvão Teles and Joao Ribeiro da Costa, at Morais (MLGTS).