State utility regulators pressed Enbridge on Tuesday for more details on recent pledges that could weigh in the company's favor during continued hearings on a controversial $2.6 billion proposal to build a pipeline across northern Minnesota.
The pipeline would replace Enbridge's Line 3, which is corroding and is not running at full capacity. The voluminous record on the case for a new Line 3 was built over three years, and was largely closed earlier this year.
Enbridge, though, has made significant new pledges this week and earlier this month.
The company, one of the largest in Canada, said Monday it would give its corporate guarantee to cover environmental damages from oil spills from the new pipeline. The state has been pressing for such a guarantee, but Enbridge has resisted.
"I am a little bothered by how this has come forward," said Public Utilities Commission (PUC) Commissioner John Tuma. "I would expect more details on the how the process will go forward. These are not minor details."
An Enbridge attorney said the company will make a filing with more information on the corporate guarantee.
Also submitted this week is a letter in favor of the project from the Pipeline and Hazardous Materials Safety Administration, the nation's top pipeline-safety regulator.
When asked if Enbridge asked for such a recommendation, the company replied that it did.