A combination of adverse weather conditions, geological challenges, and water depths associated with such operations, a limited number of partners available to participate in projects, a lack of compliance with environmental regulations and regulations, a lack of oil field service costs and availability, a Terrorist attack or piracy, a Remediation and other costs and regulatory changes resulting from oil spills, emissions, hazardous materials, and other factors, a failure of equipment or facilities and a Response capabilities for personnel and environmental incidents.