Valero Energy exits California refineries — Benicia shutdown sparks fuel supply concerns

Valero's California retreat raises supply concerns

Valero Energy is exiting a significant piece of California refining capacity, crystallising worries about fuel availability and market stability in the nation’s largest gasoline market. The company announces in April 2025 that it will shutter the Benicia refinery and classifies both Benicia and Wilmington as having unrecoverable carrying values, while pledging to meet state demand through existing inventories and imports. Company filings show $1.1 billion of impairments tied to the two plants in the first quarter of 2025.

Benicia closure reshapes regional supply

Valero says the Benicia refinery, which at times processes as much as 170,000 barrels per day and employs more than 400 people, stops production in late January rather than the previously scheduled April 2026 wind‑down. The move removes one of the state's larger domestic crude processors and forces greater reliance on fuel imports and remaining local refineries to meet California’s stringent fuel specifications. Wilmington, with capacity about 135,000 barrels per day and responsible for roughly 15% of Southern California’s asphalt, also faces an uncertain future as Valero writes down its carrying value.

Executives and analysts point to regulatory and economic pressures as drivers of Valero’s decision. Chief Executive Lane Riggs attributes the curtailment to California policies that accelerate declines in fossil fuel demand and increase compliance costs, leaving the company with limited incentives to invest in local refining. The company records the impairments as part of sweeping reassessments of in‑state assets, and says it will prioritise supply continuity through inventories, imports and remaining refinery throughput while evaluating longer‑term options.

Wider industry exits amplify risks

The Valero moves follow a wave of recent exits that include Phillips 66 halting operations at Los Angeles refineries in the fourth quarter of 2025 and Chevron reducing its California footprint, a retreat that accompanies multi‑billion dollar impairments reported by majors. Chevron records after‑tax charges of $3.5 billion to $4 billion in late 2023, largely tied to California assets, underscoring an industry trend of heavy write‑downs and shrinking local refining roles.

State officials and industry groups say the closures heighten short‑term price and supply volatility and spur debate over policy responses. Lawmakers and business leaders review options such as temporary relief measures and incentives to stabilise refining capacity, but no immediate solutions emerge, leaving consumers and retailers bracing for months of uncertainty.