A federal judge closed a dispute between Foresight Energy LP and employees of the Deer Run coal mine.

Employees supported a $550,000 settlement fund offered by Foresight to avoid litigation over allegations the company violated the federal Workers Adjustment and Retraining Notification, or WARN, Act by not offering enough notice of terminations when the mine experienced a combustion event that forced it to idle.

The highly productive longwall mine has had issues since a July 2014 mine fire temporarily took it offline.

A judge in the U.S. District Court for the Central District of Illinois dismissed the case in a Jan. 24 court filing.