[sammyg2]

Red-Beard has it right, there are currently three signiciant refineries in California up for sale and another that is up for possible "disposition" (shut down or turned into a shipping and recieving terminal).
There is another refinery in Hawaii that has been up for sale for a long time (1 of 2 there).

The reason these refineries are up for sale or are under threat of closure is directly related to excessive gubmint regulations and fees.

For perspective, there are only 9 refineries in California that have a capacity of 100k bbls or more/day. 100k is considered a relatively small refinery.
There are 11 other smaller refineries in Ca, most in the 50k range or smaller.
Many of them operate on a batch system mode and are up and down contantly as market conditions fluctuate. They will pretty much disapear in the next 5 to 7 years.

Of the roughly 2 million bbls of refining capacity in California, the refineries up for sale or disposition represent about 553,000 or 28%.

As cap and trade in califorinia progresses it will get more and more expensive to operate here every year.
Eventually most or all refineries will close down here.