Negotiations are ongoing with Valero for its 170,000-barrel-per-day Benicia complex, which supplies about 10% of the state's refining capacity. Newsom and the energy commission won't comment on specifics. But reports indicate the state could help cover maintenance costs or facilitate a sale. Valero did not respond to requests for comment for this story but in a second-quarter earnings call in late July, Valero Executive Vice President Rich Walsh acknowledged the state's efforts to keep Benicia open, and Valero hasn't shut the door just yet.