The region is located in the southwest of the country, and includes Mangyshlak Peninsula. It has much of Kazakhstan's Caspian Shore. It also borders neighboring countries Turkmenistan and Uzbekistan. Mangystau also borders two other Kazakh regions (counter-clockwise), Aktobe Region and Atyrau Region. The area of the region is 165,600 square kilometers. Engineers discovered petroleum in the area in the days of the Soviet Union, drilling commenced, and much of the area was built up around the industry.