In the fourth quarter of 2025, PSX reported a refining margin of 22.50 dollars per barrel, up from 18.30 dollars a year earlier. The improvement reflects a strategic shift toward higher‐value light products and the widening spread between light and heavy crude grades, which expanded by approximately 3.20 dollars per barrel over the period. Volumes processed averaged 2.1 million barrels per day, driven by strong utilization rates at Rodeo and Bayway refineries.

Phillips 66 completed its acquisition of WRB Refining in November 2025, adding two midstream assets in the Mid-Continent region and enhancing crude flexibility. The deal increases throughput capacity by 150,000 barrels per day and is expected to reduce operating costs by 60 million dollars annually. Management highlighted that the integration will unlock synergies in procurement and logistics, supporting earnings resilience through commodity cycles.

Mizuho Securities raised its rating on PSX to buy, citing a potential 9.5 percent upside based on consensus estimates. The firm pointed to the company’s streamlined asset base—after the Los Angeles refinery closure—and its exposure to growing Venezuelan heavy crude imports, which trade at a significant discount. With a market capitalization near 55.8 billion dollars and diversified cash flows across midstream, chemicals, refining and marketing, Phillips 66 is positioned to generate free cash flow exceeding 4.5 billion dollars in 2026.