Foresight Energy reports fire at Hillsboro mine Foresight Energy LP announced that Monday July 14, at approximately 7:30 pm Central Daylight Time, high carbon monoxide readings were detected at Hillsboro Energy LLC’s Deer Run Mine located near Hillsboro, Illinois, indicating the existence of a fire. All underground employees were safely evacuated and none sustained injuries. Hillsboro officials identified the affected area and have been working with federal and state officials implementing an approved plan to contain and extinguish. Two holes have been drilled into the coal mine and water is being pumped into the affected area. The Deer Run mine produces approximately 500,000 clean tons per month under normal operations.