Malta is totally dependent on imported fuel for its energy requirements. Electricity is the main source of power. In 2001, three thermal power stations on the main island made up Malta's total installed capacity of 250 MW; two of them, Gozo and Comino, are supplied with electric power by means of submarine cables. Production of electrical energy in 2000 was 1.75 billion kWh, of which 100% was from fossil fuels. Consumption of electricity was 1.6 billion kWh. Since 1995, the Maltese government has been exploring offshore areas for crude oil with the help of foreign companies such as Amoco, Royal Dutch Shell, and Nimir of Saudi Arabia.