There are two things working against the Trump administration’s proposal to open up California coastal waters to new oil and gas drilling: state regulators and simple economics.
California has powerful legal tools to head off new offshore development, and the price of oil offers little incentive to the energy industry to pursue expensive drilling projects next to a hostile state.
http://www.latimes.com/local/lanow/la-me-california-offshore-drilling-20180106-story.html