Khanty-Mansiysk is a city in west-central Siberia in Russia. It lies on the eastern bank of the Irtysh River, 15 kilometers (9.3 mi) from its confluence with the Ob, in the oil-rich region of Western Siberia. Though it is an independent city, Khanty-Mansiysk also functions as the administrative centre of Khanty-Mansiysky District, and the administrative center of Khanty-Mansi Autonomous Okrug–Yugr…