When you are a small country where much of it is bordered by water and the largest distance from tip to next border is ~300km, and you have immense oil wealth, desal and distribution makes sense.

Not explain to me how that works for a state like Arizona, where the closest salt water body is ~80km to the state boundary, yet the closest metro area (Tucson or phoenix) is 250+km. How does processing and delivery get paid for? Note those are the two closest areas.

I picked AZ because there are neighborhoods growing and some are having to rely on trucked in water.