Arizona
Arizona is one of the fastest-growing economies in the country — and that growth is outpacing the state's fuel supply infrastructure. Arizona currently depends heavily on a single out-of-state sourcing region for its refined fuel, primarily California, which leaves local families and businesses exposed to price spikes and supply shocks whenever that market tightens. Western Gateway is designed to change that equation: not by asking Arizona communities to take on new risk, but by giving the state a reliable, independent pathway for the fuel it already needs.
A Growth Market With a Supply Problem
Phoenix is one of the fastest-growing metropolitan areas in the country, and its continued growth depends on a secure and reliable fuel supply. Right now, that supply comes overwhelmingly from a single source: California's refining and pipeline network, a market that has faced its own capacity constraints and price volatility in recent years. Arizona's population and economy continue to expand, that single-source dependence becomes a growing concern.
Keeping Pace With Arizona's Growth
Western Gateway is about more than a pipeline, it's about making sure Arizona has reliable access to the fuel its economy depends on, today and as the state continues to grow. A more diversified fuel supply from Texas and Mid-Continent supplies means greater long-term price stability, fewer disruptions, and a stronger foundation for the businesses, families, and communities that call Arizona home.
Adding Supply, Not Diverting It
Western Gateway is designed to bring up to 230,000 barrels per day of refined products into Arizona from stable, domestic Texas and Midcontinent refining networks — new supply, not a redirection of fuel away from other markets. The goal is straightforward: diversify Arizona's fuel supply and reduce the state's exposure to single-source disruptions, whether from a refinery outage, a pipeline interruption, or a natural disaster.
Built Around Safety and a Light Footprint
Western Gateway uses a mix of new and existing infrastructure to keep its footprint as small as possible. To respect regional conservation efforts, the preliminary pipeline route is intentionally designed to protect the integrity of the Sonoran Desert Conservation Plan (SDCP) areas and the Maeveen Marie Behan Conservation Lands System. The route does not cross federally recognized Tribal lands, and the project team is in active dialogue with Tribal leaders to ensure sacred grounds and cultural boundaries are fully respected as the route is finalized.
The pipeline's infrastructure is built on a continuous cycle of preventative engineering and rigorous asset maintenance, anchored by 24/7/365 real-time monitoring and advanced leak detection technology. In the event of any operational irregularity, trained controllers can immediately isolate specific line segments using automated shutoff valves — a system designed to minimize response time and limit potential environmental exposure.