Mostly because he did not do it. That is why we are producing more than ever. That is why the biggest petroleum projects in 20 or 30 years on Federal Lands were approved by Joe and both houses of Congress. You need to take up any shortages with the countries, like Saudi (and OPEC) and of course Russia which announced and actually cut back their production to keep supply from getting ahead, and creating another glut, which is bad for their profits, as well as oil company profits, presently the largest in history.