From the investor call:
Mark Lashier:
"We're constantly looking at what refining assets belong in our portfolio long term and what is the best way to deal with those that maybe aren't having a long-term future. And you've seen us exit Alliance. It was aided by mother nature, where we're transforming San Francisco into the Rodeo Renewed facility, and we're looking at other things, too, that we're not going to discuss at this point in time."
Transcript:
https://www.marketscreener.com/amp/quote/stock/PHILLIPS-66-10447684/news/Transcript-Phillips-66-Analyst-Investor-Day-42257686/