The Oguz state is the Oguz tribes that occupied the vast territory of Kazakhstan along the Irgiz, the Urals, Emba, Wil, in the Aral Sea region, the Syr Darya valley, the foothills of Karatau, the Chui valley. The etymology of the name «Oguz» is unclear and has been discussed more than once in domestic and foreign historical and philological literature. The term probably meant «tribes», «unification of tribes», but then could turn into an ethnic name with a collective meaning.