Peabody Energy, the largest coal company in the US and one of the largest in the world, is once again embroiled in controversy over shady treatment of employees.

In 2007, Peabody Energy created Patriot Coal, a spin-off company comprised of Peabody’s eastern US mines. According to lawsuits involving the United Mine Workers (UMW), Patriot was formed as a place to stash union mines in West Virginia and the Midwest, along with the significant pension and health-care obligations that these eastern mines held.