Tengizchevroil is a leading company in Kazakhstan that produces oil, gas and associated products that fuels the modern economy. Our history is closely interlinked with the rise of an independent Kazakhstan.We safely and reliably produce products that heat homes, fuel cars, support businesses and benefit society.Our primary purpose is to create value for the Republic of Kazakhstan, our four shareholders, the communities where we live and operate and ourselves. We are proud to contribute to the country’s economic progress and future.
Tengiz is located on the 2.500 square kilometer (1.600 square mile) project license area which includes the super giant Tengiz field, and a smaller but sizable Korolev field and several exploratory prospects.

(25 billion barrels)

(1,6 billion barrels)
Total recoverable crude oil in the Tengiz and Korolev fields is estimated to be 1.4 billion metric tonnes (11 billion barrels). The areal extent of the Tengiz reservoir is large, measuring 20 kilometers (12 miles) by 21 kilometers (13 miles).

Sales gas
(in cubic meters)

LPG
(in metric tonnes)

Sulfur
(in metric tonnes)

(in US dollars)

(in US dollars)
Direct financial payments include Kazakhstani employees' salaries, purchases of Kazakhstani goods and services, tariffs and fees paid to state-owned companies, profit distributions to Kazakhstani shareholder and taxes and royalties paid to the government.
The TCO Way explains who we are, what we believe, how we achieve our mission and where we aspire to go. It establishes a common understanding of our values and behaviors not only for us, but for all who interact with us.
Our values define us and guide our actions in delivering results. We conduct our business in a socially and environmentally responsible manner, respecting the law and benefitting the communities where we work.
We are committed to excellence and passionate about delivering results. We strive for efficiency and continual improvement. We demonstrate TCO’s high-performance behaviors and hold ourselves accountable for our actions and results.
We are honest with ourselves and others. We earn trust by respecting and supporting each other and by operating with the highest ethical standards in all we do.
We build trusting, productive and collaborative relationships with government, our shareholders, communities, business partners, customers and each other. We are most successful when we succeed together.
We have an unwavering commitment to personal and process safety, and protecting the environment. We strive for incident free operations with a focus on preventing high consequence events.
In the city of Kulsary, the fifth cohort of the 2026 “Tandau” project has been completed, with 28 more residents of the Zhylyoi district receiving funding to implement their business ideas. The project, implemented by the Eurasia Foundation of Central Asia (EFCA), aims to support local initiatives and help residents bring their plans to life. The initiative was launched with funding from Tengizchevroil LLP (TCO) as part of the Zhylyoi District development program to promote the growth of small and medium-sized businesses.
Tengizchevroil LLP (TCO) donated modern medical equipment worth 660 million tenge to the district hospital. This equipment will, among other things, enable patients in the region to receive better treatment.
Tengizchevroil (TCO) has donated specialized equipment worth more than 3.9 billion tenge to the municipal state enterprise Tabigat, operating under the Department of Natural Resources and Environmental Management of Atyrau Oblast. The project was implemented within the framework of social partnership and aims to develop environmental infrastructure in Atyrau Oblast, as well as to improve the effectiveness of environmental protection activities at the regional level.
In the city of Kulsary, the fifth cohort of the 2026 “Tandau” project has been completed, with 28 more residents of the Zhylyoi district receiving funding to implement their business ideas. The project, implemented by the Eurasia Foundation of Central Asia (EFCA), aims to support local initiatives and help residents bring their plans to life. The initiative was launched with funding from Tengizchevroil LLP (TCO) as part of the Zhylyoi District development program to promote the growth of small and medium-sized businesses.
Tengizchevroil LLP (TCO) donated modern medical equipment worth 660 million tenge to the district hospital. This equipment will, among other things, enable patients in the region to receive better treatment.
Tengizchevroil (TCO) has donated specialized equipment worth more than 3.9 billion tenge to the municipal state enterprise Tabigat, operating under the Department of Natural Resources and Environmental Management of Atyrau Oblast. The project was implemented within the framework of social partnership and aims to develop environmental infrastructure in Atyrau Oblast, as well as to improve the effectiveness of environmental protection activities at the regional level.