US crude refiners are reporting some of their best profit margins in years, according to recent market reporting. The improvement comes even as energy shipments continue to move through the Strait of Hormuz, a key chokepoint for global oil flows. Multiple outlets link the strong margins to disruptions and constraints that have not fully cleared from wider supply chains, suggesting that logistical bottlenecks still affect crude availability, refining runs, and pricing dynamics. While the flow of shipments through Hormuz has increased compared with earlier periods, residual frictions appear to keep certain market segments tight, which can support refining spreads and margins for companies with access to appropriate crude inputs and delivery routes. The coverage frames the situation as a sign that normalization is incomplete: even with higher shipment activity, lingering issues in shipping schedules, regional supply balances, or related operational factors continue to influence global energy markets. Overall, the story emphasizes the combination of ongoing Hormuz-era concerns and near-term market effects that benefit US refining economics.