Sept 19 (Reuters) - The Trump administration has sided with Canadian pipeline operator Enbridge (ENB.TO) , opens new tab in its legal battle against Michigan, filing a court statement last week that challenges the state's efforts to shut down the Line 5 oil pipeline.

Enbridge has been locked in a long-running dispute with Michigan over the aging Line 5 pipeline, which ships 540,000 barrels per day of crude and refined products from Superior, Wisconsin, to Sarnia, Ontario.

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The Calgary-based company is proposing to build a roughly 4-mile (6-km) tunnel for the pipeline, which crosses through the Straits of Mackinac in the Great Lakes.

The project faces opposition from Native American tribes and environmental groups, who fear it poses a risk to the Great Lakes.

Enbridge said in a statement that it remains confident in the Michigan Public Service Commission's permitting process, which approved the tunnel project.

https://www.reuters.com/world/us/us-justice-department-files-statement-interest-enbridge-michigan-case-2025-09-19/