Прикаспийская низменность
A large part of the region is situated in the oil-rich Caspian Depression. Many oil wells have been drilled in the Tengiz Field and Kashagan Field areas. An oil pipeline runs from Atyrau to Samara, Russia, where it joins the Russian pipeline system. A separate oil pipeline runs from the Tengiz field to the Russian Black Sea port of Novorossiisk.