FILE PHOTO: Emergency crews work to clean up the largest U.S. crude oil spill in nearly a decade, following the leak at the Keystone pipeline operated by TC Energy in rural Washington County, Kansas, U.S., December 9, 2022.
REUTERS/Drone Base/File Photo(Reuters) - Material discharged from TC Energy Corp’s ruptured Keystone pipeline was diluted bitumen, a type of heavy crude oil, the U.S. Environmental Protection Agency (EPA) said on Thursday.
The 622,000 barrels per day (bpd) pipe has been shut since last week after it spilled 14,000 barrels of oil in rural Kansas.
Pipeline and Hazardous Materials Safety Administration, state and local agencies, TC Energy and TC Energy contractors, the agency said.
Bitumen is a dense, thick form of oil that shippers dilute with lighter oils so it can move through pipelines.