we have two minisplits. Only ran them a few times last month, but our bill was $212. Used to be ~$80 7-8yrs ago. We do have a hot tub, but that's not running much with it set to only 100F.
when we built in 2012 we drilled 500' and no water. Hydrofracked and got a whopping 3gpm, but that's pretty close to 700 gallons in the sleeve. Neighbor about 500' away built couple years ago and has a gusher at 50gpm and only 400' or so.