An oil leak near St. Louis prompted the closure of parts of two pipelines as crews work to determine the source, company officials and Missouri regulators said Thursday.
The leak was discovered Wednesday near St. Charles, Missouri, about 30 miles (48 kilometers) northwest of St. Louis. TransCanada Corp.'s Keystone pipeline and Enbridge Inc.'s Platte pipeline are among several that run through the area. Crews on Thursday were preparing excavation work to figure out where the leak originated.
"The source of the release has not been fully determined, but it is apparent that it originated at either the TransCanada Keystone pipeline or the Enbridge pipeline; there is no visible release near the other pipelines," Missouri Department of Natural Resources spokesman Brian Quinn said in an email.