Q. grisea or arizonica
I counted 10 living oaks and one recently dead one in rainwater harvesting basins all throughout the Pavillions parking lot. I only found one small acorn on a tree, but caps on the ground show that at least that tree produced more acorns earlier in the year.
The basins seem shallow and ineffective. I doubt these trees are irrigated and suspect they would be larger if they had access to more runoff.
Clark County, Nevada, US
The largest mesquite I've seen in Albuquerque