Oil and water: The Line 3 debate

Enbridge's new, larger Line 3 pipeline, which carries crude oil across northern Minnesota, was completed in 2021 and began operating in October. But the debate over the project's impact on climate, water and tribal treaty rights continues.

State watchdog office criticizes PUC’s public participation process
The Minnesota Office of the Legislative Auditor released a report criticizing the Minnesota Public Utilities Commission, saying the state’s utility regulator has not done a good job helping the public — particularly Native communities — participate in its complex proceedings.
State officials agree to give Line 3 permits additional scrutiny
The Minnesota Pollution Control Agency announced that a “contested case hearing” on a draft water quality permit for Line 3 will be held later this summer. The decision further delays the contentious project by at least three months.
MPCA issues draft permits for Enbridge’s Line 3 project
The Minnesota Pollution Control Agency issued three draft permits this week that are needed to build the Line 3 oil pipeline replacement project, marking another step in Enbridge Energy’s five-year effort to build the controversial pipeline across northern Minnesota.
In second Line 3 approval, state regulators take up safety, spills — and climate change
Minnesota utility regulators have once again given their blessing to Line 3, the oil pipeline replacement project Enbridge Energy has proposed for northern Minnesota — but not before having a sometimes heated discussion about the project's impact on climate change.
Minnesota utility regulators give key approvals to Line 3 pipeline project
Months after a court decision threw its future into question, the Line 3 pipeline replacement project is moving closer to regaining the permits it needs to begin construction.
For state utility regulators, it’s Line 3 all over again
More than a year and a half after regulators at the state Public Utilities Commission first approved the oil pipeline replacement project, they’re being asked to consider it again. A state court overturned the project's environmental review last summer, and the PUC now has to decide whether to approve a revised assessment.
Regulators revisit environmental review for Line 3 pipeline
Most of Friday's testimony strayed well beyond the narrow official scope of the proceedings into the broader questions of whether the project should even be built.
State regulators to hear public comments on Line 3 pipeline project once again
The Minnesota Public Utilities Commission approved the project, which would replace an aging Enbridge Energy oil pipeline across northern Minnesota, in June 2018. But last summer, the Minnesota Court of Appeals ruled that the project first needed a revised environmental study in order to move forward. On Friday, the PUC will hear public comments on the new study.
Climate Curious: How could the Line 3 oil pipeline affect our climate?
Minnesota regulators required a detailed analysis of emissions resulting from building the pipeline and burning the oil that it would carry over the next several decades.