The economy of Saudi Arabia is one of the top twenty economies in the world, and the largest economy in the Arab world and the Middle East. Saudi Arabia is part of the G20 group of countries. With a total worth of $34.4 trillion, Saudi Arabia has the second most valuable natural resources in the world. The country has the second-largest proven petroleum reserves, and is the largest exporter of petroleum in the world. It also has the fifth-largest proven natural gas reserves and is considered an "Energy Superpower".