A part of TransCanada Corp's Keystone oil pipeline was shut on Wednesday after a possible leak in the St Louis, Missouri, area, according to three sources familiar with the matter.
It was unclear, however, if the leak was from the Keystone pipeline itself, traders said, adding that the Steele-City-to-Patoka line was shut. "The release is stopped," said an official from Missouri Department of Natural Resources, adding that the spill occurred north of the city of St. Charles. "(We are) working to determine which pipeline has the leak… expect to conduct excavation of pipelines tomorrow (Thursday) to try to find the leak." Earlier, energy intelligence provider Genscape reported that flows in the Keystone-to-Steele-City pipeline had decreased to near 41,000 barrels per day from about 622,000 barrels per day. TransCanada was not immediately available for comment. (Reporting by Devika Krishnakumar in New York, and Nallur Sethuraman and Karthika Namboothiri in Bengaluru Editing by Sandra Maler)