Spain is not entirely self-sufficient in energy, as the country relies heavily on external imports to satisfy its domestic consumption of petroleum products, natural gas, and various raw minerals. While Spain has made massive strides in expanding its renewable energy capacity—notably wind, solar photovoltaic, and hydroelectric power—it must still import nearly all of its crude oil and natural gas via maritime liquefied natural gas carriers and cross-border pipelines. Consequently, its domestic energy self-sufficiency ratio remains well below total consumption requirements, leaving it sensitive to international commodity market price fluctuations.