My apologies...read up on it and they no longer reference 'known reserves' anymore
The new verbiage is: "proven oil reserves' or 'proved oil reserves'...that may or 
may not include oil shale, etc
https://en.wikipedia.org/wiki/List_of_countries_by_proven_oil_reserveshttps://www.cia.gov/library/publications/the-world-factbook/rankorder/2244rank.htmland agree, OPEC is no longer the main control org of crude pricing...
Outsourcing was much simpler when those countries were way down on
the peer scale...but, after paying them to build up their infrastructure...that
whole thing has changed...except for bean counter exec's continue
to out source to reduce their costs & build their bonuses based on
quarterly profit numbers
Other metrics that are also going to drive this, other than the old
vision of westward movement for the next manufacturing region/country/etc
has already started...and that is build to order. 
Not for very complex and large products like a vehicle, but small things
like cell phones, etc. So manufacturing will no longer adhere to either
the westward movement or cheap costs and much more