Major hazard Installation (MHIs) such as refineries, petrochemical plants and terminals use storage tanks for storing of crude oil and by products. Pool fire is one of the most common types of fire accidents in storage tanks. This technical article aims to present an overview on the estimation of thermal radiation which results in from a pool fire in crude oil storage tank through a case study. Two pool fire scenarios were considered for the study of thermal radiation, fire in the storage tank and fire in the tank and its bund. Point source model and solid plume model (conventional and modified) were used for estimation of thermal radiation. The thermal radiations which are resulted in from point source model in both scenarios were found to be exceeding the permissible targeted criteria level for structure. Although the thermal radiation from solid plume was found to be below the permissible targeted criteria level for structure, however the operators and emergency responders are at high risk of thermal radiation. Key words: Crude Oil, Storage Tank, Pool Fire, Thermal Radiation.