Pipeline Firms Formed Joint Venture to Boost Fuel Supply
The Western Gateway project aims to lower transportation costs for businesses currently strained by high red diesel prices.
Updated on Oct. 1, 2026 in Oil and Gas
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Phillips 66, Kinder Morgan, and HF Sinclair have finalized a joint venture to build a 1,300-mile refined-products pipeline. The project is designed to create a direct fuel-supply path from St. Louis and the Gulf Coast to Arizona and California.
Why it matters
The venture responds to intense fuel-cost pressures that have forced businesses to overhaul logistics, including shifting to rail or mandating full truckload orders. It aims to address regional supply imbalances as the market shifts from global oil shocks to domestic refining constraints.
Red diesel prices climbed to $6.50 to $7 per gallon in late September 2026, up from $3.50 to $4 earlier in the year. The proposed 1,300-mile Western Gateway pipeline seeks to alleviate these costs by connecting major refining hubs to western markets.
The players
Phillips 66
A major energy manufacturing and logistics company that refines and transports petroleum products.
Kinder Morgan
One of the largest energy infrastructure companies in North America, focusing on pipeline transportation and storage.
HF Sinclair
A diversified energy company that produces and markets high-value light products like gasoline and diesel.
The details
The pipeline is designed to move refined products from the Gulf Coast and St. Louis directly into Arizona and California. As operators face extreme fuel volatility, many are mandating full-truckload requirements or switching to rail freight to maintain margins. These logistical pivots are a direct response to the surge in diesel prices, which creates a competitive disadvantage for firms relying on smaller, frequent shipments.
Timeline
Early September 2026: Red diesel prices hit $5 per gallon.
Late September 2026: Red diesel prices surged to $6.50 to $7 per gallon.
Next 30 days: Companies are expected to limit shipping orders to full truckloads.
Market Landscape
The project marks a departure from reliance on global oil-growth cycles, where China previously accounted for 40% to 60% of transportation fuel demand growth. It aligns with a broader industry transition toward mitigating refining-specific shocks that threaten regional margins.
Operators currently squeezed by fuel prices should evaluate the viability of shifting to rail shipping or larger, consolidated order sizes. Monitor regional fuel supply updates as this project progresses, as it will likely dictate long-term transportation cost stability in western markets.
The takeaway
The Western Gateway pipeline reflects the industry's shift to secure domestic refining paths in an era of volatile diesel prices. Operators should track their logistics costs against the $6.50 to $7 per gallon threshold and consider long-term transport contracts to insulate against potential supply shocks.
Further reading
For more on industry infrastructure trends, see the Oil and Gas section.
Source note: This article includes information reported by Morningstar.
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