I strongly support and urge you to mandate and enforce the requirement of divulging the identity of ingredients/chemicals used in the drilling, stimulation, and completion of gas and oil wells.  We should, at the very least, identify present and past materials used, and store  in a easily identifiable electronic location for public access.  The groundwater, springs, wells and drinking water supplies of this nation are at potential risk from unexposed sources currently.  Make these public.