Caspian Sea
The sea has a surface area of 371,000 km (143,200 sq mi) (not including the detached lagoon of Garabogazköl) and a volume of 78,200 km(18,800 cu mi). It has a salinity of approximately 1.2% (12 g/l), about a third of the salinity of most seawater.
Convention on the legal status of the Caspian Sea
Due to the presence of numerous oil fields on the seabed of the Caspian Sea the question of legal status was very important; some countries even tried to develop fields in disputed regions, almost causing military incidents.