Icoke yepetroleum yepetroleum ecocekileyo ecocekileyo yenziwe ngepetroleum coke ekumgangatho ophezulu phantsi kobushushu obuyi-2,500-3,500 ℃. Njengomgangatho ophezulu wekhabhoni ococekileyo, uneempawu eziphezulu zekhabhoni ezisisigxina, isulfure ephantsi, umlotha ophantsi, i-porosity ephantsi njl.
