KazMunayGas (KMG) is the largest vertically integrated oil and gas company in Kazakhstan, established in 2002. It operates across the entire hydrocarbon value chain, including geological exploration, production, transportation, refining, processing, and marketing of petroleum products. KMG is state-owned, with major shareholders including the Sovereign Wealth Fund Samruk-Kazyna JSC and the Ministry of Finance of the Republic of Kazakhstan.

The company manages oil and gas transportation infrastructure and owns refining facilities to process crude oil. KMG markets its petroleum products both domestically and internationally, serving a diverse range of customers in the energy, transportation, and petrochemical sectors. With a strategic international presence, KMG also manages foreign assets in countries like Moldova, Georgia, Romania, and Bulgaria. Headquartered in Nur-Sultan, Kazakhstan, KMG plays a vital role in the national economy and aligns with the country's energy policies.