Kharg or Khark Island is a continental island of Iran in the Persian Gulf. The island is 25 km (16 mi) off the coast of Iran and 483 km (300 mi) northwest of the Strait of Hormuz. Its total area is 20 km2 (7.7 sq mi). Administered by the adjacent coastal Bushehr Province, Khark Island provides a sea port for the export of oil and extends Iranian territorial sea claims into the Persian Gulf oil fields. Located on Khark Island is Khark, the only city in the Khark District.