Western Siberia or West Siberia (russian: Западная Сибирь, Zapadnaya Sibir'; kk, Батыс Сібір) is a part of the larger region of

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive region, geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a ...

that is mostly located in the

Russian Federation Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...

. It lies between the

Ural Ural may refer to: *Ural (region), in Russia and Kazakhstan *Ural Mountains, in Russia and Kazakhstan *Ural (river), in Russia and Kazakhstan * Ual (tool), a mortar tool used by the Bodo people of India *Ural Federal District, in Russia *Ural econ ...

region In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics ( physical geography), human impact characteristics ( human geography), and the interaction of humanity an ...

and the

Yenisei River The Yenisey (russian: Енисе́й, ''Yeniséy''; mn, Горлог мөрөн, ''Gorlog mörön''; Buryat: Горлог мүрэн, ''Gorlog müren''; Tuvan: Улуг-Хем, ''Uluğ-Hem''; Khakas: Ким суғ, ''Kim suğ''; Ket: Ӄук, ...

, which conventionally divides Siberia into two halves. Western Siberia covers an area of , nearly 80% of which is located within the

West Siberian Plain The West Siberian Plain (russian: За́падно-Сиби́рская равни́на ''Zapadno-Sibirskaya ravnina'') is a large plain that occupies the western portion of Siberia, between the Ural Mountains in the west and the Yenisei River ...

. The largest rivers of the region are the

Irtysh The Irtysh ( otk, 𐰼𐱅𐰾:𐰇𐰏𐰕𐰏, Ertis ügüzüg, mn, Эрчис мөрөн, ''Erchis mörön'', "erchleh", "twirl"; russian: Иртыш; kk, Ертіс, Ertis, ; Chinese: 额尔齐斯河, pinyin: ''É'ěrqísī hé'', Xiao'e ...

and the Ob. The

West Siberian petroleum basin The West Siberian petroleum basin (also known as the West Siberian hydrocarbon province or Western Siberian oil basin) is the largest hydrocarbon (petroleum and natural gas) basin in the world covering an area of about 2.2 million km², and is al ...

is the largest

hydrocarbon In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colourless and hydrophobic, and their odors are usually weak or ...

(

petroleum Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crud ...

and

natural gas Natural gas (also called fossil gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane in addition to various smaller amounts of other higher alkanes. Low levels of trace gases like carbo ...

) basin in the world covering an area of about 2.2 million km², and is also the largest oil and gas producing region in Russia. In

medieval times In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire an ...

, the region was part of the

Golden Horde The Golden Horde, self-designated as Ulug Ulus, 'Great State' in Turkic, was originally a Mongol and later Turkicized khanate established in the 13th century and originating as the northwestern sector of the Mongol Empire. With the fragme ...

. After its gradual decline during the 15th century, the

Khanate of Sibir The Khanate of Sibir (also Khanate of Turan, sty, Себер ханлыгы) was a Tatar Khanate located in southwestern Siberia with a Turco-Mongol ruling class. Throughout its history, members of the Shaybanid and Taibugid dynasties often con ...

, centered on

Tyumen Tyumen ( ; rus, Тюмень, p=tʲʉˈmʲenʲ, a=Ru-Tyumen.ogg) is the administrative center and largest city of Tyumen Oblast, Russia. It is situated just east of the Ural Mountains, along the Tura River. Fueled by the Russian oil and gas in ...

, was formed within the area. In the late 16th century, most of Western Siberia was conquered by the

Russian Empire The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. ...

, while its southern region became part of the Kazakh Khanate. The current international borders between Russia and

Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...

came into being in the late 20th century following the dissolution of the Soviet Union.

Major cities

The most populous city of Western Siberia is Novosibirsk. Other major cities include: * Omsk *

* Surgut *

Barnaul Barnaul ( rus, Барнау́л, p=bərnɐˈul) is the largest city and administrative centre of Altai Krai, Russia, located at the confluence of the Barnaulka and Ob Rivers in the West Siberian Plain. As of the 2021 Census, its population was ...

Tomsk Tomsk ( rus, Томск, p=tomsk, sty, Түң-тора) is a city and the administrative center of Tomsk Oblast in Russia, located on the Tom River. Population: Founded in 1604, Tomsk is one of the oldest cities in Siberia. The city is a n ...

Kokshetau Kokshetau (meaning ''Blueish Mountain'' in Kazakh, kz, Көкшетау, Kökşetau; ; rus, Кокшета́у, p=kokʂɛtaʊ) is a city in northern Kazakhstan and the capital of Akmola Region, which stretches along the southern shore of Lak ...

* Kemerovo *

Novokuznetsk Novokuznetsk ( rus, Новокузнецк, p=nəvəkʊzˈnʲɛt͡sk; literally: "new smith's", cjs, Аба-тура, ''Aba-tura'') is a city in Kemerovo Oblast (Kuzbass) in south-western Siberia, Russia. It is the second largest city in the obla ...

Kurgan A kurgan is a type of tumulus constructed over a grave, often characterized by containing a single human body along with grave vessels, weapons and horses. Originally in use on the Pontic–Caspian steppe, kurgans spread into much of Central As ...

Pavlodar Pavlodar ( ; ) is a city in northeastern Kazakhstan and the capital of Pavlodar Region. It is located 450 km northeast of the national capital Astana and 405 km southeast of the Russian city of Omsk along the Irtysh River. , the cit ...

Petropavl Petropavl ( kk, Петропавл, Petropavl ) or Petropavlovsk () is a city on the Ishim River in northern Kazakhstan close to the border with Russia. It is the capital of the North Kazakhstan Region. Population: 218,956. The city is also kno ...

Semey Semey ( kk, Семей, Semei, سەمەي; cyrl, Семей ), until 2007 known as Semipalatinsk (russian: Семипала́тинск) and in 1917–1920 as Alash-kala ( kk, Алаш-қала, ''Alaş-qala''), is a city in eastern Kazakhst ...

Oskemen Oskemen ( kk, Өскемен, translit=Öskemen ), or Ust-Kamenogorsk (russian: Усть-Каменого́рск), is the administrative center of East Kazakhstan Region of Kazakhstan. Population: Name The city has two official names. In th ...

References

{{Authority control Geography of Siberia Geography of Kazakhstan Regions of Russia