This research evaluates the effectiveness of the policies about environmental as well as health safety adopted by Royal Dutch Shell. The section covers the concept of environmental impact of oil and gas production, occupational injuries, risk factors and health and safety management policies in the oil and gas industry. The section also discusses the implementation of the PDCA cycle and occupational safety and health management system in the industry. Finally, the section covers other practices to improve the health and safety of workers in the oil and gas industry.