Energy facilities have the destructive energy stockpiled on-site. Don't need to fly in much force yourself.
Also why I think governments should mass-produce & subsidize blow-molded 25L plastic gas cans instead of building centralized storage tanks/caverns. No way those things cost anywhere near US$25 to make.
I think the energy facilities being hit are mostly refineries - not storage, and anyways any bulk storage is just temporary for bulk transport for export or to the front, etc, so having it in 25gal cans wouldn't be very helpful!