The situation escalated further as additional strikes and retaliatory attacks disrupted key energy infrastructure across the Gulf region. Within days of the initial U.S. airstrikes in late February, shipping traffic through the Strait of Hormuz began to collapse. By March 1–2, transit had effectively halted, as commercial carriers pulled vessels from the region due to escalating security threats, including reported drone attacks, mines and military activity.

By mid-March, the disruption had intensified. Oil exports moving through the Strait were estimated to be down by as much as 60%, and many tankers were either anchored outside the Gulf or rerouted entirely. As of the third week of March, multiple reports described the waterway as “effectively closed” for nearly three weeks, not due to a formal declaration, but because conditions had made safe passage nearly impossible.

The Strait of Hormuz is normally responsible for moving roughly 20% of the world’s oil supply has not been officially shut down in a legal sense. Instead, it has become functionally impassable for much of global shipping, creating the same supply shock as a formal closure. For global energy markets, and for the supply chains that depend on them, the impact is identical: constrained supply, rising prices and widespread uncertainty.

The result has been swift and significant. Brent crude has surged above $119 per barrel, while U.S. crude has climbed into the mid- to high-$90 range, representing a sharp increase from sub-$90 levels just weeks ago, according to reporting from Reuters and Business Insider. Analysts warn that continued instability could keep prices elevated or push them higher in the near term.

The most immediate impact is not the price of crude itself, but what happens next. Transportation costs are already rising, as fuel remains one of the largest variable expenses in logistics. Diesel prices tend to move in near lockstep with oil, and carriers typically respond quickly by implementing fuel surcharges across both trucking and ocean freight networks. Reports indicate that logistics providers are already adjusting rates in response to higher fuel costs, creating near-term pressure on distribution operations.

That shift is being felt across the day-to-day realities of distribution. Inbound freight costs from manufacturers are increasing, branch-to-branch transfer expenses are becoming more expensive, and last-mile delivery costs to contractors are rising as well. Even in situations where product pricing has not yet adjusted, margins are already being compressed by higher transportation expenses.

Oil price increases also extend beyond freight. Energy is a key input in the production of metals and industrial materials widely used across PHCP and PVF applications, including steel, copper and aluminum. As energy costs rise and supply chains face disruption, material pricing typically follows. This creates additional upward pressure on core distributor product categories such as water heaters, valves, fittings and piping systems.

Historically, these cost increases tend to lag oil spikes by several weeks, which means distributors may soon begin to see manufacturer price increase notices tied to both production and transportation costs. What begins as a fuel issue quickly becomes a broader pricing issue across the supply chain.

In response, distributors are being forced to reassess how they manage inventory and logistics. Rising transportation costs and less predictable delivery timelines are pushing companies to evaluate how much inventory to carry locally, how frequently to replenish, and how to balance availability with cost control. At the same time, contractor expectations for product availability and quick turnaround have not changed, creating ongoing tension between service levels and margin protection.

The industry has navigated supply chain disruption before, but oil introduces a different kind of pressure. Unlike isolated shortages, rising energy costs impact every product category, every shipment and every mile traveled. Supply House Times will continue to monitor the situation and update readers.