Where not shown in Google Earth, we provide maritime boundaires for inland seas.
The
Caspian Sea is only connected to the oceans via a freshwater canal, so it is not considered to be a part of the UN's Law of the Sea. Also, its distances are not large enough to be settled using the 200 nautical mile rules. The same considerations apply to the
Aral Sea.
However, their international boundaries are being settled in a similar way, through bilateral treaties. This process is discussed in
Wikipedia.
The borders are provided in styles matching the UN's global maritime boundaries. They are included in the above posting,
Exclusive Economic Zones. The names of the surrounding countries are provided in the
Global Multilingual Placenames.

Caspian boundary source: Ariel Cohen,
Iran's Claim Over Caspian Sea Resources Threaten Energy Security, Heritage Foundation, 5 September 2002
Aral boundary source:
Vozrozhdeniye Island, Renaissance - Rebirth Island, GlobalSecurity.org