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Environmental groups and Ojibwe bands opposing Enbridge's new Line 3 oil pipeline have taken their legal claims to the Minnesota Supreme Court.
The groups petitioned the high court on Wednesday to overturn a June decision by the Minnesota Court of Appeals, which affirmed utility regulators' approval of the controversial $3 billion-plus project to replace Enbridge's corroding Line 3.
The state Supreme Court usually hears fewer than 15% of the petitions it receives.
The Minnesota Department of Commerce, which also lost its appeal of Line 3 in June, said Wednesday it will not petition the high court for a review.
The appellate court's decision in June — by a 2-1 vote — upheld the Minnesota Public Utilities Commission's 2020 final approval of the 340-mile oil pipeline across northern Minnesota.