I guy I worked with got hired there a couple months ago. So they are staffing, don’t know what the startup date is.
Construction of the diesel refinery, on a 318-acre site located west of Dickinson, N.D. is expected to take approximately 20 months.
http://www.calumetspecialty.com/dakota-prairie-refinery-project
Groundbreaking was March 26, 2013, so maybe by the end of the year.