There is, finally, one being built as we post...
However, we need at least two more so that CA can be on its own and stop screwing up production for the rest of the country with their enormous matrix of gas compositions vs. all the season-, and sub-seasons-, environmental requirements.
Very good news. Where is it being built.
Hawaii needs a new refinery the most in order to take care of fueling needs of our Pacific fleet. Puerto Rico could also use one. An added advantage in Puerto Rico is that it would provide jobs for the locals.