The Phillips 66 refinery in Wilmington, which processes 139,000 barrels per day (bpd), began idling operations in early September and is set to fully shut down by the end of 2025, ending the company's crude oil refining in California. Meanwhile, Valero's 145,000-bpd Benicia refinery in the San Francisco Bay Area is scheduled to cease operations by April 2026, citing the state's "regulatory enforcement environment" as a key factor. These closures follow the 2020 shutdown of Marathon's Martinez refinery and the 2025 conversion of Phillips 66's Rodeo facility to renewable diesel, leaving California with just seven crude oil refineries compared to 40 in the 1980s.