This research examined the risk perceptions of workers in the petroleum processing industry sector. The background of this study was based on the exploitation, production, and distribution activities in the oil and gas industry sector which are extensively carried out to meet high market demand. However, it also needs to be balanced with a sound safety system to prevent workplace accidents. The main idea of this study was slightly different from previous research. The approach used is the perspective of workers to find safety risks that frequently occurred in their work environment. This study employed the structural equation modelling (SEM) method to find out the main factors that influence workers' perception of the occupational safety risk. Based on the result of the analysis, individual attitude & behaviour and work situation & target are two factors that have a strong influence on workers risk perception. This finding is essential for further analysis in developing action plans for accident preventions in a company, particularly in the petroleum processing industry sector.