I agree with Pieter
But the US economy is on a roll,,,and it seems by relaxing more and more enviromental regulations all stops and plugs are pulled. It will last a while and usually when the US economy rolls the world economy benefits too.
However, once it hit the wall at the next crash which will come for sure, that crash will be worst than anything else experienced before. The shipping industry will of course benefit too, but the landing will be rough and unforgiving !!!!