that depends on how and what costs are being measured. Leasing costs are certainly not amongst the lowest in the US. In addition, I wasnt limiting my points to the US.
I live in the Delaware Basin. It's a s-hole. That in itself doesnt make it much different from many other oil producing regions. And like many other 'boom' areas, the costs for damn near anything and everything are inflated and usually poor to mediocre in quality. Doesnt matter if it's hardware, services, or housing for employees (which are Boston like without having a Whole Foods within 200 miles).
I keep reading about (and seeing) Permian operators drilling more wells and pumping more oil and not making profits so even if I accept your assertion that costs are amongst the lowest in the US, that still doesnt make the APC purchase wise.