Since the 1960s, the experiences of the North African oil producers of Libya, Algeria, Egypt and Sudan within the oil industry have followed separate paths, which have led them into different relations with foreign oil companies. While reflecting broader trends of "resource nationalism", these relations have also been affected by a number of factors specific to these countries. In tracing the evolution of the oil investment frameworks of these countries, as well as their concomitant relations with IOCs, this paper probes the roles played by these factors and argues that the type and size of remaining reserves as well as the capability of NOCs are likely to determine the most future developments in the region's oil industry. (C) 2009 Elsevier Ltd. All rights reserved.