A method of improving the permeability of a hydrocarbon bearing formation such as a coal seam by electrolinking a first well and a second well which have been drilled into the formation. Both wells are completed with similar strings of casing. The portion of the casing string which passes into or through the formation is comprised of alternating sections of electrically conductive and nonconductive material. An electrode is lowered into each well into contact with one of the electrically conductive sections. Current is then flowed between the electrodes in the wells until a permeable path through the formation is established. Then one or both electrodes are moved into contact with different conductive sections within the respective wells and the procedure is repeated.