This paper investigates the role of intellectual capital in promotion of successful knowledge management (KM) initiatives. The conclusions are based on the results of field studies conducted in the subsidiary companies of Ministry of Energy of Islamic Republic of Iran (Sistan & Baluchestan Province). Before designing the conceptual framework, relevant literature pertaining to the history of the work at hand, was reviewed by the researcher. Based on the opinions of external experts, university professors and organization’s experienced executives, a research model was developed. Tools such as textual analysis and interviews were employed to explore relationships between intellectual capital and knowledge management. A survey was conducted using a structured questionnaire which measured research variables like intellectual capital indexes and KM processes. The output of structural equations models (SEM) and LISREL statistical software showed that intellectual capital and its components have direct effects in promoting KM processes in the subsidiary companies of Ministry of Energy of Islamic Republic of Iran (Sistan & Baluchestan Province). By improving intellectual capital and its indexes, knowledge management can be improved.