Exxon Mobil, Koch Industries, and American Petroleum are named in the suit.
It's expected to be one of the worst days on the stock market since the financial crisis.
It's a setback for pipeline company Enbridge.
A small hole in the pipeline is to blame for the leak.
It had hoped to have the line in service by the end of 2019.
The appeal was originally launched by the Dayton administration.
The fire happened at an auto shop in Sartell, Minnesota.
A worn valve was behind the disaster.
The oil has entered the Little Rock and Rock rivers.
Officials will deliberate over the proposal this week.
An oil spill response team has been working with the refinery.
Hydrogen fluoride can be deadly when humans are exposed to it.
It's the fourth owner the refinery has had in eight years.
The blaze was extinguished on Thursday evening.
"Hate to say I told you so" has been the reaction from opponents to the controversial pipeline.
A final review of the Enbridge project comes out Thursday
The pipeline was the scene of a monthslong protest amid concerns from Native American tribes.
Why this foam made out of plastics could be such a valuable tool.
21-year-old Sophia Wilansky's arm was shredded while in Standing Rock.
The president said they'll "let it play out" for a bit longer.
The last of the Minnesota deputies left Monday morning, a North Dakota spokesperson said.
People on board the helicopter say they were "in fear of their lives."