Phillips 66, Kinder Morgan and HF Sinclair have taken a final investment decision on the $5 billion Western Gateway project, a refined-products pipeline system designed to move 230,000 barrels a day from supply points in St. Louis and along the Gulf Coast into Arizona and California. Phillips 66 will own 49.9% of the venture, Kinder Morgan 35.1% and HF Sinclair 15%, with completion targeted for 2029 subject to regulatory approvals. The companies said the project is intended to improve fuel supply reliability in the U.S. West and connect Phillips 66's Central Corridor and Gulf Coast refining assets with its West Coast and Southwest marketing operations. Western Gateway is now described as a proposed 1,300-mile system that includes 900 miles of new pipeline from Borger, Texas, to Phoenix, together with Kinder Morgan's existing SFPP assets and Phillips 66's Gold Pipeline. The venture is backed primarily by 10-year take-or-pay contracts, with Phillips 66 contributing about $2.5 billion, Kinder Morgan about $1.75 billion including existing assets, and HF Sinclair about $750 million. The project would create a new supply route for a relatively isolated West Coast fuel market that has been strained by refinery closures and reduced imports from Asia.