Carbide consists of tungsten particles in a non-oxidized ceramic phase (WC) bound by a metallic phase (Co), resulting in high hardness and mechanical resistance at elevated temperatures. However, it is low in machinability, and few machining processes can manufacture it. The thermal effect of successive electrical discharges without tribological mechanisms enhances removal. There is little research in the literature on the removal process by wire electrical discharge machining (WEDM) with reciprocating molybdenum wire in WC-Co and its performance under different conditions. Thus, this work aims to evaluate the effects of varying discharge energy in deionized water and hydrocarbons as dielectrics. Five lateral increments (Δy) [μm] at two discharge energy levels [mJ] were used for the two dielectrics, keeping other variables constant. The experiments showed that increasing energy discharge contributes to a higher material removal rate. The hydrocarbon dielectric presented the highest wire advance rate [mm/min]. The surface texture exhibited a reduction in average roughness (Sa [μm]) at the lowest energy density, indicating better stability and reduced morphological distortion in deionized water compared to the hydrocarbon.