Several operators have found that waterfracs with minimal proppants effectively stimulate low-permeability gas formations in several Texas basins.These less-costly treatments may also find use in other basins, outside of Texas, that contain unconventional gas reservoirs.Although certain geologic limitations apply, numerous candidate formations exist in the US, and operators likely will attempt waterfrac stimulations in them.US natural gas producers rely increasingly on unconventional reservoirs to replace and grow their natural gas reserves. Tight (low permeability) and naturally fractured formations are now common geological targets for exploration and development, particularly if the re...