temporarily shut down the Keystone oil pipeline on Thursday to investigate a landowner’s report about a possible leak that proved unfounded, a spokesperson for a U.S. pipeline regulator said on Friday.
TC told the Pipeline and Hazardous Materials Safety Administration about the reported leak, then conducted aerial observation and water analysis that found no evidence of a spill before restarting the line, PHMSA said. It was not clear where the leak was reported. Calgary, Alberta-based TC did not respond to a request for comment on Friday. On Thursday, the pipeline operator said it had suspended service as a precautionary measure.
The shutdown of the 622,000 barrel-per-day pipeline interrupted the flow of Canadian oil from Alberta to Nebraska, where the line splits, with one arm running east to the Midwest and the other running south to the U.S. crude storage hub in Cushing, Oklahoma. The outage took down the entire Keystone system for five hours, according to real-time pipeline monitoring by consultancy Wood Mackenzie.Wood Mackenzie said as of Friday morning, Keystone flows had rebounded to their pre-shutdown level of more than 600,000 bpd.
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