Data from the Ministry of energy of Kazakhstan showed on Tuesday that daily oil production fell to 213,800 tons on September 11 from 243,500 tons the day before.
The ministry has not yet responded to a request from Reuters to comment on the reason for the sharp drop”.
Brent crude futures prices rose slightly above 90 dollars a barrel on Tuesday, as investors await a series of macroeconomic data due later this week, which may indicate whether Europe and the United States will continue to raise interest rates.