Well it must look 'odd' in the US then, because that is exactly what happened here, but over several decades instead of just one.

The total proved reserves in the US have been declining for decades.

Yes, but not as fast as we have been depleting our reserves on a yearly basis. Its roughly half as much.

Sure, but they have not jumped up by 110gb, or jumped up in any way shape or form. Had they done so, it would seem very odd, as it does in Saudi Arabia.