The '''Twilight Mountain Top Removal Surface Mine,''' part of the '''Progress Energy Complex,''' is owned by Massey Energy. "A dragline is utilized at the Twilight MTR surface mine. Production from the Twilight MTR surface mine is transported via underground conveyor to the Elk Run Resource Group for processing and rail shipment."<ref>Massey Energy, [http://www.secinfo.com/d14Rr.t3.htm#1stPage "Massey Energy 2008 10K"], SEC Info, February 29, 2008.</ref><ref>Massey Energy, [http://www.masseyenergyco.com/about/locations.shtml "Mining Locations"], Massey Energy website, accessed October 2009.</ref>