It is not oil!   The Saudi “royal” family are Jews and Trump is entirely, entirely beholdne to the Jews – his entire family is Jewish and his son in law Jared Kushner has security clearance which gives him permission to go the the President’s daily briefings – with access to all of America’s most important secrets!

It may be that his wife who is the Mother of his two sons and daughter Ivanka is a Jewess since all his children are married to Jews.