Qatar, officially the State of Qatar, is a small, wealthy nation located on the Qatar Peninsula in Western Asia, forming a key part of the Arabian Gulf region. It shares its only land border with Saudi Arabia to the south, while its extensive coastline is bordered by the Persian Gulf and the Gulf of Bahrain. The capital and largest city, Doha, is the primary center of commerce and population, which is highly concentrated in the low-lying desert landscape. The nation's economy is historically and currently dominated by natural gas and petroleum exports, making it a major global energy hub.