The article discusses the role of the oil and gas sector in the foreign policy of the Republic of Kazakhstan. It is known that the oil industry of Kazakhstan is one of the main sectors of the economy of Kazakhstan. The economic, and therefore social development of the country as a whole depends on the export of this mineral. The article analyzes the main large oil fields such as Tengiz, Kashagan, Karachaganak, Uzen, Zhetybai, Zhanazhol, Kalamkas, Kenkiyak, Karazhanbas, Kumkol, Northern Buzachi and others, which are the most attractive investment sectors for foreign investors. The article also shows the proportionality of the production and consumption of oil and gas resources in the republic, as well as the dynamics of their development from the period of independence to the present. According to some reports, the production of the so-called "liquid currency" exceeds its consumption in the republic. According to Kazakhstan experts, oil production in Kazakhstan will continue to grow in subsequent years, which will undoubtedly attract more investors, especially in the oil and gas sector. Along with this, the negative side of the resource is considered in the work, for example, oil production in the region can destroy its ecosystem and have a negative impact on the environment as a whole. Thus, the article is devoted to the most urgent issues in Kazakhstan and its purpose is to show what role the oil and gas resource plays in the foreign policy of Kazakhstan as a whole.