The Caspian Pipeline Consortium plans to export about 1.6 million barrels per day of CPC Blend crude in July, down from around 1.7 million bpd planned for June after drone damage to a Russian gas facility meant output had to be reduced, two trading sources said.
Kazakhstan's oil and gas condensate field Karachaganak, which exports oil via the CPC pipeline, normally supplies gas to Russia's gas plant in Orenburg for processing.
After the Orenburg gas plant was attacked last week, it had to shut operations and Karachaganak was forced to reduce output.
On a daily basis, CPC Blend oil loadings will decline by some 6% in July from June, Reuters calculations show.
Karachaganak production has been restored to 28,000 metric tons per day, but remains below the 31,000 tons produced before the drone attack, said Askhat Khasenov, the head of KazmunayGas, which holds a stake in the oilfield's operator Karachaganak Petroleum Operating.
The Karachaganak field was also forced to reduce production last October as a result of another drone attack.
CPC Blend oil loadings were revised up by 17% in June from the initial plan after the giant Kashagan oil field decided to postpone maintenance.
CPC shareholders include Russia with 31%, Kazakhstan with 20.75%, U.S. major Chevron NYSE:CVX with 15%, and several private companies.