Group 1 - Phillips 66 (PSX) is considering producing CARB gasoline at its Ferndale refinery to improve air quality and increase gasoline supplies in California [1][2] - The Ferndale refinery has a capacity of 105,000 barrels per day (bpd) and will begin producing CARB gasoline for delivery to northern and southern California following the closure of the Los Angeles refinery, which has a capacity of 139,000 bpd [2][3] - The company is collaborating with California Governor Gavin Newsom and regulatory authorities to maintain fuel supply in the state after the Los Angeles refinery shutdown [3] Group 2 - Valero Energy plans to shut down or restructure its Benicia refinery in California by April 2026, which may lead to reduced refining capacity and higher gas prices in the state [4] - The refinery closures are primarily due to regulatory policies aimed at achieving cleaner energy targets and reducing emissions [4]