The purpose of this study was to investigate the influence of Human Resource policies on employee retention in the petroleum industry by focusing on the case of Hass Petroleum Limited. The policies selected for the study were training, promotions and rewards policies only. The research was conducted from the entire population of employees working in Hass petroleum (census). The total workforce comprised of 60 employees but only 55 of them responded to the study. This constituted about 92% of the target population which is allowed in census research (Desa, 2001). Data was collected using questionnaires and analyzed with the help of the Statistical Package for Social Sciences (SPSS) computer program which involved computation of descriptive statistics and the results were summarized and presented in frequency tables and pie charts. Pearson’s correlation analysis was used to determine the relationship between the independent factors and the dependent factor. Regression analysis was used to determine the contribution of each variable on employee retention.