Phillips 66 and Kinder Morgan Advance Western Gateway Pipeline Project

The proposed refined products pipeline system will connect Midwest and Gulf Coast refinery supply to Phoenix, Arizona and California markets.

Apr. 20, 2026 at 3:37pm

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A high-end, photorealistic studio still-life photograph featuring a polished metal pipeline valve, a gleaming chrome fuel nozzle, and a smooth glass fuel canister arranged elegantly on a clean, monochromatic background, conceptually representing energy infrastructure and fuel distribution.A symbolic representation of the advanced Western Gateway Pipeline project, which will improve the transportation of refined products from Midwest and Gulf Coast refineries to growing markets in the Southwest.Phoenix Today

Phillips 66 and Kinder Morgan, Inc. announced the advancement of the Western Gateway Pipeline, a proposed refined products pipeline system, following a successful second open season that secured long-term shipper commitments sufficient to move the project forward. The Western Gateway Pipeline will connect Midwest and Gulf Coast refinery supply to Phoenix, Arizona and California markets with connectivity to Las Vegas, Nevada via Kinder Morgan's CALNEV Pipeline.

Why it matters

The Western Gateway Pipeline project is a significant infrastructure development that will enable the transportation of refined products from Midwest and Gulf Coast refineries to growing markets in the Southwest, including Phoenix and California. This project is expected to improve supply reliability and flexibility in the region.

The details

The Western Gateway Pipeline will consist of a new-build pipeline from Borger, Texas to Phoenix, Arizona, combined with Kinder Morgan's existing SFPP, L.P. pipeline from Colton, California to Phoenix, Arizona, which will be reversed to enable east to west product flows into California. The Gold Pipeline, operated by Phillips 66, which currently flows from Borger to St. Louis, will be reversed to enable refined products from Midwest and Gulf Coast refineries to flow toward Borger and supply the Western Gateway Pipeline.

  • The project is targeting an in-service date of mid-2029.

The players

Phillips 66

An American diversified energy manufacturing and logistics company.

Kinder Morgan, Inc.

One of the largest energy infrastructure companies in North America, operating pipelines and terminals that transport natural gas, refined petroleum products, crude oil, and more.

Western Gateway Pipeline

A proposed refined products pipeline system that will connect Midwest and Gulf Coast refinery supply to Phoenix, Arizona and California markets.

CALNEV Pipeline

A pipeline operated by Kinder Morgan that transports refined products from California to Nevada, including Las Vegas.

Gold Pipeline

A pipeline operated by Phillips 66 that currently flows from Borger, Texas to St. Louis, Missouri, but will be reversed to enable refined products from Midwest and Gulf Coast refineries to flow toward Borger and supply the Western Gateway Pipeline.

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What’s next

The project is still subject to the execution of definitive transportation service agreements, joint venture agreements, and respective board approvals before moving forward.

The takeaway

The Western Gateway Pipeline project represents a significant investment in energy infrastructure that will improve the supply and distribution of refined products to growing markets in the Southwest, benefiting both consumers and the energy industry in the region.