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Sources say that Kazakhstan's Tengiz Field restored 20% of its output capacity by February 1.

Two sources familiar with the operational data say that oil production at Kazakhstan's Tengiz giant field has increased in recent days. It reached nearly 20% of its capacity on Sunday, following a complete outage in January.

Tengiz, the oil refinery that accounts for almost 40% of Kazakhstan's production, was closed on 18 January after an electrical fire. This cut down on the nation's overall oil supply, at a time where exports had already been constrained due to disruptions along its main pipeline route.

Sources said that oil output at Tengiz increased to 23,000 metric tonnes (183,000 barrels), up from 14,900 metric tons (118,000 barrels), on Saturday. Sources said that this will be about 20% of the full production capacity.

Sources said that production?is expected?to continue increasing, and will reach 54,000 tonnes (430,000 barrels), or about 45% of the full output?by Wednesday.

Tengizchevroil, the Chevron-led company, has said that it will gradually increase production, as conditions permit, but won't comment on specific commercial or operational details.

OUTPUT FALLED IN JANUARY

Tengiz’s average production fell by 2/3 from December to 234,000 barrels/day in January, according to the Situational Analytical Center of the Fuel and energy Complex (SAC FEC).

Calculations show that the field produced 2.694 millions tons of coal in December, which is equivalent to 691 700 bpd.

SAC FEC data show that in August 2025 the output at Tengiz reached a record of 3.7 million tonnes (roughly 950,000 bpd).

MAINTENANCE?CURBS OUTPUT

A source citing SAC FEC figures said that Kazakhstan's total production of oil and condensate fell to 1,27 million bpd from 1.86 in December, and 1.87 in January last year.

The ministry of energy did not immediately respond to a comment request.

In January, two other major oil fields saw declines. The Kashagan oilfield saw a 33% decline in production to 260,000 barrels per day, while the oil output from Karachaganak fell 13% to 198.300 barrels per day.

One source said that Kashagan's decline is linked to maintenance. NCOC, Kashagan's operator, did not reply to a comment request.

The decrease in Kazakhstan's total output in January is attributed to restrictions on the Caspian Pipeline Consortium export route after infrastructure was damaged by a drone strike, and the outage at Tengiz. (Reporting and Editing by Susan Fenton, Jan Harvey)

(source: Reuters)