Quantitative Risk Assessments (QRAs) are a vital tool for managing risks on the onshore gas network. They provide objective, data-driven evaluations of potential hazards, allowing operators to prioritise high-risk areas and allocate resources effectively. QRAs support regulatory compliance, inform decision-making, and help assess the impact of population growth or infrastructure changes on pipeline safety. Additionally, they enhance emergency planning by simulating various scenarios minimising environmental, societal, and operational risks. This paper reviews and evaluates an example of a risk assessment carried out on an onshore gas pipeline, using the quantitative risk assessment (QRA) methodology in line with the U.K standard IGEM/TD/2.