The problems of calcining and grinding of electrode coke made from Estonian oil shale were studies with the view to obtain conductive fillers for preparing electrically conductive compositions. Calcining of crude coke in the temperature range of 800-1000 degrees C with the following disintegration was found to yield electrically conductive fillers with the resistivity of 1.8.10(-2)-2.4.10(-2)Omega.cm and particle size of 1-4 mu m. The obtained fillers are suitable for producing antistatic conductive compositions.