Kazakhstan’s Chevron-led Tengiz oilfield, the country’s largest, has been undergoing maintenance which is due to be completed on October 24, Energy Minister Erlan Akkenzhenov told Reuters on Tuesday.
Tengizchevroil (TCO), Kazakhstan’s largest producer, reached record monthly output of 3.715 million metric tons, or around 953,000 barrels per day, in August at the field.
An industry source said the field had reduced oil production in the first 19 days of October by around 27% from September’s average to 700,000 barrels per day.
TCO did not immediately reply to a request for comment.
(Reporting by Tamara Vaal; Writing by Vladimir Soldatkin; Editing by Jan Harvey)