If a majority of the owners sign, then it will go ahead. Not sure what the exact percent is. That is probably in the document. If they waterflood, then royalties to the wells usually increase which benefits the unit at least in the early years. Over time, some wells may water out, but I get paid on the remaining producing wells in the rest of the unit on my waterfloods. Your decimal may go down since the number of acres is increasing, but the increased revenue due to better performance (hopefully) will extend the life of your ownership.