Phillips 66 has entered into a definitive agreement to acquire the remaining 50 percent ownership interest in WRB Refining LP from subsidiaries of Cenovus Energy Inc. for total cash consideration of $1.4 billion, subject to customary purchase price adjustments. The transaction will provide Phillips 66 with full ownership of two strategically important refining facilities.
Joint Venture Background and Operations
WRB Refining LP operates as a 50/50 joint venture between Phillips 66 and Cenovus Energy Inc., owning the Wood River refinery in Roxana, Illinois, and the Borger refinery in Borger, Texas. Phillips 66 has served as the operator of both facilities since the joint venture’s establishment in 2007, providing operational continuity for the transition to full ownership.
The acquisition represents a natural progression from the existing operational arrangement, allowing Phillips 66 to fully integrate these assets into its broader refining network and value chain operations.

Strategic Rationale and Expected Benefits
Mark Lashier, chairman and CEO of Phillips 66, characterized the acquisition as strengthening the company’s integrated business while expanding its position in a region where it maintains industry leadership. The transaction aligns with Phillips 66’s strategy of building scale and operational efficiency within its core geographic markets.
The company expects the acquisition to generate operational and commercial synergies of approximately $50 million annually through full integration of the refineries with Phillips 66’s broader value chain. These synergies are anticipated to result from optimized crude sourcing, product distribution, and operational coordination across the expanded refining network.
Additionally, Phillips 66 expects the transaction to create opportunities for low-capital, high-return projects that could provide incremental long-term shareholder value through facility optimization and market integration initiatives.
Refining Capacity and Technical Capabilities
The Wood River and Borger refineries possess crude throughput capacities of 345,000 barrels per day (MBD) and 149,000 barrels per day, respectively. Upon closing, the combined facilities will add approximately 250,000 barrels per day to Phillips 66’s total refining capacity, representing a significant expansion of the company’s processing capabilities.
Both refineries demonstrate operational flexibility through their ability to process various crude oil types, including heavy and medium sour crudes as well as light sweet crudes. This processing versatility provides Phillips 66 with enhanced crude sourcing flexibility and the ability to optimize feedstock selection based on market conditions.
The facilities also maintain high yields of transportation fuels, aligning with market demand patterns and supporting Phillips 66’s integrated marketing and distribution operations.
Transaction Timeline and Market Impact
The acquisition is expected to close during the fourth quarter of 2025, following completion of regulatory approvals and satisfaction of customary closing conditions. The transaction timing allows for proper integration planning and operational preparation.
For Phillips 66, the acquisition represents a strategic consolidation move that enhances operational control while expanding refining capacity in established markets. The transaction demonstrates the company’s commitment to strengthening its integrated refining and marketing business through selective acquisitions that offer clear operational synergies and growth opportunities.
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