I posted about a general slow down in world demand of production goods, that I think will continue. in a post

However some assets, I think, will become less available and therefore more costly is PM and energy

I think the easily accessable sources will some be exhausted. Even oil is not finite in todays locations.

Coal is abundant, but society will demand clean coal, thus I have no idea what happens to the price of coal.

In order to access the remaining material, it will be more expensive to bring to market. Not saying it isn't there. Just saying not so easy to access

Thus in time I think energy and PM are two assets that will become more valuable as time goes by.

Oil is the hardest to guess. What amount of reserves remain in the ME and other places that can be brought to market for say 70/barrel ??

If Russia would do a better job of monitoring for oil line leaks they would have more in reserve.

A good example of communisn vs. capitalist but I digress.