The economic history of Latin America offers an unusual paradox. For much of the twentieth century, nationalist governments have fostered the growth of state enterprise, but for the most part the proponents of such policies have received little attention. The Argentine petroleum industry is a case in point. While the state oil company Yacimientos Petrolíferos Fiscales (or YPF) grew from relatively modest origins into the largest firm in the country, its most important architect, General Enrique Mosconi, has remained a little-known figure. In this article, however, Dr. Solberg takes note of Mosconi's career. He examines the forces that shaped it and that shaped his policies as the Director General of YPF. Mosconi's story, however, is not that of just another nationalist-turned-public servant, for his ideas and policies had far-reaching ramifications not only in the political economy of Argentina but also in that of other nations of Latin America.