Enbridge has failed to meet a deadline set by the Minnesota Department of Natural Resources for cleaning up a site where an aquifer ruptured during construction of the Line 3 oil pipeline, DNR officials said.

The state of Minnesota has gone to federal court to block a lawsuit over Enbridge Energy's Line 3 oil pipeline project from proceeding in tribal court.

Tribal and environmental groups opposed to Enbridge Energy's Line 3 oil pipeline project asked the Minnesota Supreme Court on Wednesday to overturn a lower court decision affirming the approvals granted by independent regulators that allowed construction to begin last December.

Enbridge said on Tuesday it would defy Michigan's demand to shut down an oil pipeline that runs through a channel linking two of the Great Lakes, contending that Gov. Gretchen Whitmer's decision was made as a result of bad information and political posturing.

Eight people were arrested in a protest to oppose construction of the Enbridge Energy Line 3 oil pipeline replacement in northern Minnesota, authorities said.

Members of a Native American tribe in Wisconsin filed a federal lawsuit Tuesday in hopes of forcing Enbridge Inc. to remove sections of a major pipeline that runs across their reservation, arguing it's becoming more likely the aging line will rupture and cause catastrophic environmental damage.

The Wisconsin Supreme Court ruled on Thursday that the Canadian company Enbridge Energy doesn't need to carry additional insurance for a pipeline project in Dane County, despite the local government's insistence that it do so lest there be an accidental spill.

Enbridge Energy Partners has reached a $176 million settlement for the costliest inland oil spill in U.S. history — a pipeline rupture in southwestern Michigan that polluted a nearly 40-mile stretch of the Kalamazoo River, federal officials said Wednesday.

A federal appeals court has ruled in favor of the government in a dispute over an oil pipeline that runs through a national forest in Michigan's Oscoda County.

An environmental group is threatening to sue the federal government over a Great Lakes oil pipeline.

A group of Wisconsin landowners is suing Enbridge to force the company to carry spill insurance on a pipeline that will carry Canadian tar sands oil across the state.

A federal judge has rejected the key claims in a lawsuit that sought to block a capacity expansion on the Alberta Clipper oil pipeline across northern Minnesota.

A state appeals court has refused to order a judicial review of a state Department of Natural Resources' decision to issue Enbridge Energy an air pollution permit.

An administrative law judge has ruled that tribal treaties don't give the Chippewa Indians the right to decide where a crude oil pipeline should be located in northern Minnesota.

A Wisconsin appeals court says a Superior landowner can proceed with trespassing claims against an energy distributor.