Refinery Closures Push Fuel Costs to $5 in Oregon

Southern Oregon business owners must adjust for higher transit costs as supply chains pivot toward international imports.

Updated on Oct. 25, 2026 in Oil and Gas

Heavy-duty fuel tanker parked at an industrial terminal, surrounded by large pipes and storage silos under a flat, overcast sky.
Regional fuel costs in southern Oregon have reached $5 per gallon following the permanent closure of major processing refineries in California. AI Illustration. Upload story photo >

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Following the April 2026 shutdown of the Valero Benicia refinery and the permanent closure of the Phillips 66 Wilmington facility, regional fuel supply chains have shifted toward increased gasoline imports. These logistical changes now force southern Oregon operators and motorists to navigate sustained fuel prices hovering near $5 per gallon.

Why it matters

Because Oregon relies entirely on external sources for its transportation fuel, the loss of California-based processing capacity constrains supply and increases reliance on volatile global import markets. This shift in infrastructure directly impacts operating margins for businesses reliant on vehicle fleets in the region.

Gasoline imports to the West Coast reached a five-year high in 2026, sourcing supply from 15 countries compared to the 11-country average maintained between 2023 and 2025. In southern Oregon, regular gas prices reached $5.04 in Grants Pass and $4.88 in Medford-Ashland as of October 25, 2026.

The players

Valero

An international manufacturer and marketer of transportation fuels and petrochemical products.

Phillips 66

A diversified energy manufacturing and logistics company with significant U.S. refinery assets.

The details

Oregon lacks domestic crude oil resources and refineries, leaving the state dependent on infrastructure in Washington, which supplies over 90% of its fuel, and terminals in California. Fuel typically arrives in the state via barge and pipeline through Portland-area terminals, while a California terminal in Chico serves as a crucial secondary supply point for southern Oregon. The closure of major processing sites in California has forced distributors to look further abroad for inventory, complicating the procurement process and adding upward pressure on pump prices.

Timeline

  1. April 2026 marked the completion of the Valero Benicia refinery processing shutdown.

  2. October 25, 2026, was the date AAA recorded average gasoline prices for the region.

Market Landscape

The current reliance on global imports follows the structural shift identified in the 2026 S&P Global report on refinery impacts. This transition marks a departure from the previously stable regional supply model as major domestic processors exit the California market.

Operators in southern Oregon should account for sustained fuel cost volatility in their logistics and delivery budget models for the near term. Reevaluating fuel procurement contracts and considering fleet efficiency adjustments are essential steps while supply remains constrained by international import dependence.

The takeaway

The permanent loss of regional refining capacity signals a structural change that necessitates tighter control over transportation overheads. Operators should track local average fuel prices against national benchmarks as a proxy for supply chain health and adjust cost-pass-through models accordingly.

Further reading

For broader trends on energy infrastructure, see Oil and Gas.

Source note: This article includes information reported by Daily Tidings.

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