Tengizchevroil (TCO) is a prominent oil and gas company based in Kazakhstan, established in 1993 as a joint venture between the Republic of Kazakhstan and Chevron. The company�s partners include Chevron, KazMunayGas, ExxonMobil Kazakhstan Ventures Inc., and Lukoil. TCO operates primarily in the Tengiz and Korolev oil fields, which are known for their significant oil reserves, including the world's deepest producing supergiant oil field, Tengiz.

TCO focuses on the exploration, development, and production of crude oil, natural gas, liquefied petroleum gas (LPG), and sulfur. The company is committed to safe and reliable production, supporting various sectors of the economy. TCO has invested heavily in local content, contributing over $10.3 billion to Kazakhstani goods and services and employing a workforce that is predominantly made up of Kazakhstani citizens. The company is also engaged in major projects aimed at expanding production capacity to meet future demand while emphasizing local economic development and sustainability.