The biggest Middle East oil and container ports banned all vessels sailing to and from Qatar from using their facilities amid a diplomatic crisis gripping the worlds main energy-exporting region.
https://www.bloomberg.com/news/articles/2017-06-06/biggest-middle-east-ports-shun-qatar-as-saudis-tighten-isolation?cmpid=socialflow-twitter-business&utm_content=business&utm_campaign=socialflow-organic&utm_source=twitter&utm_medium=social
Thanks for the link.
This is far from an embargo, and a blockade is an act of war. Not even close.
From your source: Its more of a logistical issue that you can get around, Jonathan Lee, chief executive officer of shipping pool operator Tankers International, said of the inability of Qatari ships to fill their tanks at Fujairah. Its not the end of the world.
Here is another article re motivation: Zero Hedge