MOSCOW, July 16 (Reuters) - The Chevron ( CVX )-led

Tengizchevroil (TCO) consortium has no plans for major

maintenance this year at the Tengiz oilfield, Kazakhstan's

largest, TCO told Reuters on Wednesday

"Tengizchevroil (TCO) is not planning a major turnaround at

Tengiz in 2025. TCO does not comment on specific details of its

future production levels," it said in emailed comments.

The expansion of Tengiz has been the main factor behind a

rise in oil production in Kazakhstan, which has frequently

exceeded its output quota set by OPEC+, an alliance of the

Organization of the Petroleum Exporting Countries and other

producers led by Russia.

TCO operates the Tengiz and Korolev fields. Tengiz, one of

the world's deepest oilfields, was discovered in 1979.

Chevron ( CVX ) holds a 50% stake in TCO, while KazMunayGaz

has 20%, ExxonMobil ( XOM ) 25% and Lukoil

5%.

It produced around 606,000 barrels per day in 2024.