Dung Quat, Vietnam's only oil refinery has dragged down Quang Ngai Province's economic growth this year by shutting down for 68 days on several occasions.
Online newspaper VnExpress quoted Cao Khoa, chairman of the province People's Committee, as saying the plant's output of 10 percent below target meant Quang Ngai's economy would only expand by 7 percent instead of the targeted 10-11 percent.
If the plant had not shut down with technical problems, the economy would have grown by 10.4 percent, he said.
The plant will process 5.4 million tons of crude oil this year, according to Binh Son Co., which operates it.
In early August the refinery, which meets 30 percent of the country's demand for oil products, closed for a week to fix a fault in a processing unit.
The plant, which only completed trial runs and began official operations last year, also shut down for nearly two months starting in early May for a final check.
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