U.S. Oil Refining Capacity Hits Critical Shortage Levels

The United States is experiencing a critical shortage of oil refining capacity, leaving the domestic economy vulnerable to global supply shocks. Although the country remains a leading oil exporter and does not rely on Gulf nations for crude, a lack of new refinery construction since 1977 has created a narrow margin between production and demand.

This fragility has been worsened by the closure of several major facilities. LyondellBasell shut down its Houston plant, removing 264,000 barrels per day from capacity, while Phillips 66 closed its Los Angeles plant, removing another 139,000 barrels per day. Additionally, Valero's Benicia site in California stopped refining this spring due to regulatory pressures.

Global events have further strained the system. Ukrainian drone strikes on Russian refineries forced the Kremlin to halt diesel exports, tightening the market for the second-largest diesel supplier. While experts suggest the U.S. requires up to eight new refineries to establish a safe capacity margin, high investment costs, lengthy permitting processes, and political polarization over green energy continue to block infrastructure expansion. The Garyville, Louisiana plant built by Marathon Petroleum Corporation remains the last full-conversion refinery constructed in the country.