What specific cost reduction target has Phillips 66 set for its refining operations, and how is it achieving this while improving operational performance?

Phillips 66 has set a target to reduce refining costs to $5.50 per barrel, having already cut approximately $1 per barrel from its refining costs. The company is achieving this through internal efficiency measures that simultaneously increase the yield of high-value products and raise overall refinery utilization rates. According to CEO Mark Lashier, these improvements are supported by the company’s ongoing integrated investments, which have delivered tangible returns and enhanced its ability to respond flexibly to market opportunities.

How is Phillips 66 responding operationally to the uncertainty surrounding the Strait of Hormuz, and what strategic advantages does it cite in sourcing crude oil?

In response to Strait of Hormuz-related uncertainty, Phillips 66 is leveraging the Jones Act exemption to reroute refined products to the U.S. West Coast and transport crude oil to the East Coast—enhancing logistical flexibility amid supply chain disruptions. Additionally, Lashier stated the company is positioned favorably to access Venezuelan crude oil in the future. He also noted that temporary mitigation tools—such as Strategic Petroleum Reserve releases—are unsustainable, and highlighted that an estimated 90–100 million barrels of crude remain backed up in the Strait of Hormuz, contributing to persistent market volatility and structural upward pressure on oil prices.

Phillips 66 CEO Warns Strait of Hormuz Uncertainty Increases Refining Profit Volatility

Jun 30, 2026

Phillips 66 CEO Mark Lashier warned that Strait of Hormuz disruptions are increasing refining margin volatility. The company is reducing costs by $1 per barrel while anticipating a structural rise in oil prices amidst ongoing supply uncertainties.

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Phillips 66 CEO Warns Strait of Hormuz Uncertainty Increases Refining Profit Volatility

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