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).
Crude
(in tonnes)
LPG
(in tonnes)
Sulfur
(in 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.
ATYRAU, May 29, 2025 – Tengizchevroil (TCO) officially announced today upcoming changes to the company’s leadership team. Effective June 10, 2025, William Lacobie has been appointed as TCO General Director. He will succeed Kevin Lyon, who has served as General Director since 2021.
On May 26, 2025, a regular meeting of the Working Group on updating the Sectoral Qualifications Framework and Professional Standards in the oil and gas industry was held in Astana. The event brought together representatives from relevant ministries, industry trade unions, and oil and gas companies. It was organized by the Ministry of Energy with the support of the national company KazMunayGas, the Kazenergy Association, and Tengizchevroil (TCO).
Astana, April 25, 2025 - Tengizchevroil LLP (TCO) signed 4 contracts with 3 Kazakhstani companies for the supply of equipment worth more than $10.5 million. These contracts were signed within the framework of the XII Forum of Machine Builders of Kazakhstan, which brought together more than 1,500 participants from 20 countries. TCO was the general sponsor of this event.
ATYRAU, May 29, 2025 – Tengizchevroil (TCO) officially announced today upcoming changes to the company’s leadership team. Effective June 10, 2025, William Lacobie has been appointed as TCO General Director. He will succeed Kevin Lyon, who has served as General Director since 2021.
On May 26, 2025, a regular meeting of the Working Group on updating the Sectoral Qualifications Framework and Professional Standards in the oil and gas industry was held in Astana. The event brought together representatives from relevant ministries, industry trade unions, and oil and gas companies. It was organized by the Ministry of Energy with the support of the national company KazMunayGas, the Kazenergy Association, and Tengizchevroil (TCO).
Astana, April 25, 2025 - Tengizchevroil LLP (TCO) signed 4 contracts with 3 Kazakhstani companies for the supply of equipment worth more than $10.5 million. These contracts were signed within the framework of the XII Forum of Machine Builders of Kazakhstan, which brought together more than 1,500 participants from 20 countries. TCO was the general sponsor of this event.