 Resavica lies at the core of a brown coal basin of central-eastern Serbia.The coal was exploited in the area, with shafts in Senjski Rudnik, Strmosten and Jelovac since the mid-19th century.After World War II, the mines were nationalized, and a state-owned company "Senje-Resava Brown Coal Mines" was formed, with the seat in Resavica.