ST. PAUL, Minn. — The Minnesota Court of Appeals on Monday affirmed state regulators’ key approvals of Enbridge Energy’s Line 3 oil pipeline replacement project, in a dispute that drew over 1,000 protesters to northern Minnesota last week.

A three-judge panel ruled 2-1 that the state’s independent Public Utilities Commission correctly granted Enbridge the certificate of need and route permit that the Canadian-based company needed to begin construction on the 337-mile (542-kilometer) Minnesota segment of a larger project to replace a 1960s-era crude oil pipeline that has deteriorated and can run at only half capacity.

Pipeline opponents said they are considering an appeal to the Minnesota Supreme Court, but that their main focus is trying to persuade President Joe Biden to intervene and the continuing protests. The Biden administration hasn’t taken a clear position on Line 3, but a legal challenge is pending in federal court on the U.S. Army Corps of Engineers’ approval of a wetlands permit that activists say should be withdrawn.