There’s a stretch of water between Iran and Oman that’s about 21 miles wide at its narrowest point. To put that in perspective, it’s roughly the distance between two neighboring counties here in East Texas. You could drive it in twenty minutes. Ships take longer, obviously. But right now, the Strait of Hormuz supply chain impact is the only thing freight markets, insurance underwriters, and distribution center operators are talking about. It all starts with that one narrow corridor.
What it moves, though, is a different story.
According to the U.S. Energy Information Administration, approximately 20 million barrels of oil per day flow through the Strait of Hormuz. That’s roughly 20% of global petroleum consumption and more than a quarter of all seaborne oil trade. Add in about 20% of global LNG trade, nearly a third of the world’s seaborne fertilizer shipments, and significant volumes of petrochemicals and refined products, and you start to understand why supply chain professionals pay attention to this particular piece of water.
As of early March 2026, that corridor is effectively closed. Following military strikes against Iran beginning February 28, ship transits through the strait dropped 97% from pre-conflict levels. All five major container lines: Maersk, MSC, CMA CGM, Hapag-Lloyd, and COSCO — suspended or halted bookings through the region. The effects are already moving through freight markets, insurance pricing, and commodity costs in ways that will show up in distribution center operating budgets. Doesn’t matter if your DC handles consumer goods, food and beverage, industrial components, or e-commerce fulfillment. This one reaches everyone.
This post isn’t about the politics of the conflict. The Strait of Hormuz supply chain impact is already showing up in fuel surcharges, insurance cancellations, and commodity pricing. This post is about understanding the mechanism so you can actually do something about it. There are plenty of places to read about that, and frankly, that’s not my lane. What I want to talk about is the supply chain mechanism: what Hormuz disruptions actually do to freight markets, why insurance matters more than most people realize, and what ops leaders can do right now to get ahead of the impact.
Why the Strait of Hormuz Is a Single Point of Failure
The word “chokepoint” gets used a lot in supply chain discussions. Hormuz is the real thing. There is no meaningful alternative for most of what transits it.
Saudi Arabia has the East-West Pipeline: the Petroline, with a reported capacity of around 5-7 million barrels per day. The UAE has the Habshan-Fujairah pipeline at roughly 1.5-1.8 million barrels per day. Those are the two bypass options worth naming. Combined, they cover maybe 6-6.5 million barrels per day at maximum utilization. The problem is that over 10 million barrels per day have no bypass at all. Iraq, Kuwait, Qatar, and Bahrain have essentially zero alternative export routes. And even Saudi Arabia’s bypass delivers oil to Red Sea ports, which creates its own exposure if Houthi attacks resume in that corridor.
LNG is worse. There is no pipeline bypass for liquefied natural gas at any meaningful scale. Qatar’s Ras Laffan terminal — the largest LNG export facility in the world at 77 million tonnes per year- sits entirely inside the strait’s choke zone. That volume moves by ship, or it doesn’t move. Full stop.
Energy analyst Justin Dargin described the bypass pipelines as “shock absorbers rather than substitutes.” That framing is exactly right. They soften the margins. They can’t replace the volume. UNCTAD’s March 2026 report quantified the full picture: crude oil represents 38% of strait transits, LPG 29%, LNG 19%, chemicals 19%, and refined products 13%. One-third of the global seaborne fertilizer trade passes through this corridor. That’s not just an energy story. It’s a story about materials and inputs that touches nearly every product category as they move through a modern distribution network.
The Insurance Mechanism Nobody Talks About Enough
Here’s something I’ve learned watching freight markets over the years. A physical blockade isn’t actually required to close a shipping lane. Insurance withdrawal achieves the same result, often faster.
Before the February 2026 escalation, war risk premiums for Persian Gulf transits ran around 0.25% of a vessel’s insured value. Within hours of the strikes, underwriters were issuing cancellation notices. On a Saturday. Before markets even opened. That urgency tells you everything about how the insurance community reads the situation.
By March 2, seven of the world’s largest maritime P&I clubs, Gard, Skuld, NorthStandard, the London P&I Club, the American Club, Steamship Mutual, and the Swedish Club, announced cancellation of war risk coverage for the Persian Gulf, effective March 5. Japan’s MSAD Insurance halted underwriting entirely. War risk premiums jumped 10 to 12 times normal levels for the few carriers willing to attempt transit at all.
The practical effect is pretty simple. No bank finances an uninsured cargo. No charterer accepts uncovered liability. No port readily welcomes an uninsured vessel. Even when a ship physically can make the transit, no insurance makes the voyage commercially unviable. Thomson Reuters characterized the effective closure as “driven more by insurance withdrawal and risk perception than a physical blockade.” That’s the mechanism ops leaders need to understand. The threat doesn’t have to materialize into actual attacks to shut down trade flows. The perception of uninsurable risk does the job on its own.
We saw a version of this dynamic during the 2021-2022 port congestion crisis. Not insurance withdrawal specifically, but the same pattern where market perception and risk management decisions cascaded faster than the physical bottlenecks themselves. The lesson both times: watch the insurance market. It moves before the freight rates do.
What This Does to Freight Costs
The Red Sea disruptions of 2024 provided a recent case study on how sustained maritime disruption cascades into shipping costs. When Houthi attacks forced carriers to reroute around the Cape of Good Hope, adding 10-14 days and roughly 3,500 nautical miles to Asia-Europe transits, container rates from Asia to Europe surged 175-250% at peak. The International Transport Forum estimated the total additional cost to global trade at $15-20 billion annually while that disruption persisted.
Hormuz is a problem of a different scale entirely. Red Sea disruptions rerouted ships. Hormuz disruption traps them. As of early March 2026, over 150 tankers are anchored in the strait and surrounding waters. Approximately 280 dry bulk vessels are stranded in the region. Lloyd’s List reported more than 200 merchant vessels unable to move. That’s not a rerouting problem. That’s a supply shock.
UNCTAD data shows the Baltic Dirty Tanker Index rose 54% and the Clean Tanker Index rose 72% between February 27 and March 6. Tanker day rates in the Gulf spiked above $300,000 per day. Bunker fuel prices in Singapore surged roughly 100%. Brent crude breached $100 per barrel during the week of March 9, up more than 42% since the Friday before the strikes began.
That oil price move flows directly into diesel costs, which flow directly into carrier fuel surcharges, which flow directly into landed cost calculations. Diesel hit $4.66 per gallon in early March, up 25.6% in three weeks. FedEx and UPS adjust fuel surcharges weekly based on national diesel benchmarks. Every 10% rise in diesel can push consumer product prices up by about 1.5% within a quarter. For wholesale distributors where freight historically runs 2-5% of revenue, these conditions can double that line item during an inflationary disruption episode.
I ran LTL operations for Yellow Freight for a stretch of my career. Fuel surcharges were always part of the pricing conversation, but they were predictable. What you see in a disruption like this is different. It’s not a gradual adjustment. It’s a simultaneous repricing event across every carrier relationship you have, in a cost environment your contracts weren’t written for.
Beyond Oil: The Feedstock Problem
This is the part of the Hormuz story that gets underreported.
Approximately 84% of Middle East polyethylene capacity relies on the Strait for waterborne exports. The Middle East exported over 12.5 million tonnes of polyethylene, nearly 14 million tonnes of methanol, and roughly 6.5 million tonnes of ethylene glycol in 2025. About 80% of Asia’s seaborne naphtha import demand, which is the primary feedstock for petrochemical crackers that produce plastics, synthetic fibers, and packaging materials, comes from the Middle East.
The Strait of Hormuz supply chain impact is particularly visible here. Think about what that means for a DC handling consumer goods or e-commerce fulfillment. The packaging your product ships in. The plastic components in half the SKUs on your shelves. The synthetic materials in apparel and household goods. None of those are made directly from crude oil, but they all trace back to feedstocks moving through Hormuz. European PE and PP producers were already moving to request triple-digit price increases within days of the closure.
Fertilizers are an even more immediate concern for anyone with an agricultural supply in their network. About 30% of globally traded urea passes through the strait, along with roughly 30% of global ammonia exports. Urea prices at the New Orleans hub spiked from $475 per ton to $680 per ton within days of the closure, hitting at the worst possible time as the Midwest planting season approaches. In Arkansas, dealers reported being unable to quote prices at all due to volatility. StoneX analysts warned that the disruption is transitioning from emotional price spikes to structural supply shortages. That’s a meaningful distinction.
Aluminum rounds out the picture. International aluminum prices hit a four-year high at $3,397 per ton. The Qatalum smelter in Qatar, with 650,000 tonnes of annual output, began a phased production shutdown with a full restart timeline of 6-12 months. Goldman Sachs projected prices could reach $3,600 per ton if Middle Eastern production stays offline for a month. If your product mix includes anything with aluminum components, that’s not a freight cost problem. That’s a COGS problem.
How This Hits Distribution Center Operations
Running packing and outbound at Gap, the questions I’d be focused on right now are fairly straightforward: what’s in my inbound pipeline that traces back to affected commodities, what does my safety stock position look like on petrochemical-heavy SKUs, and what’s my carrier contract flexibility if surcharges keep climbing?
The timeline to impact matters. When calculating the Strait of Hormuz supply chain impact on your facility, Craig Geskey of Transfix notes that initial effects on ocean transport might take 10-14 days to show up, but the real pressure builds within 2-5 weeks as diverted containers arrive in waves, terminal congestion increases, and demand for drayage exceeds truck and chassis availability. Moody’s analysts warned that, for many commodities transiting the strait, inventories cover only a few weeks, meaning shortages could arrive quickly if this holds.
The inventory response is where the real financial impact usually lives. Pressure builds to increase safety stock for exposed SKUs, extend reorder lead times, increase order quantities, and absorb more frequent expedites. The working capital impact of that inventory response frequently exceeds the direct freight cost increase. You’re tying up cash, raising storage costs, and reducing your ability to react to demand shifts, all while your landed costs are already climbing. It compounds fast.
Supplier behavior shifts, too. Quote validity windows shrink. Minimum order quantities go up. Risk premiums get embedded in pricing. Some suppliers will push for Incoterms changes that shift freight and insurance responsibility to the buyer, reducing your control over carrier selection and routing at exactly the moment you want more, not less.
On the consumer price side, freight and packaging account for roughly 20% of FMCG companies’ expenses. UBS estimates that every $10 per barrel increase in Brent crude adds approximately 40 basis points to headline CPI. Retailers are already looking at 5-20% cost increases from surcharges and rerouting. That goes to shelf prices, margins, or both. Usually both.
What Scenario Modeling Looks Like
Quantifying the Strait of Hormuz supply chain impact depends on how long this lasts. Goldman Sachs estimated flows fell to roughly 10% of normal levels in early March, calling it a supply shock 17 times larger than Ukraine’s 2022 invasion impact.
Their one-month closure modeling showed oil price impacts of roughly $15 per barrel under full disruption, easing to $12 with full pipeline bypass utilization, and around $10 with bypass plus coordinated SPR releases. JPMorgan warned that a 3-4 week restriction could push Brent above $100. Deutsche Bank’s worst-case scenario approaches $200 if Iran successfully mines the strait.
The IEA agreed to release a record 400 million barrels from strategic petroleum reserves, with the US contributing 172 million barrels. That’s a meaningful buffer. It’s also a time-limited one. SPR releases by weeks, not months.
Three scenarios worth having in your planning toolkit:
Rapid resolution (days to weeks): Oil stays in the $70-80 range. Freight costs are elevated but manageable. Primary impact is surcharge increases and some inventory buffer adjustments. Normal planning cycles can absorb it.
Prolonged partial disruption: Oil in the $80-120 range. This is where feedstock and material impacts start to compound with freight costs. Safety stock decisions get harder because you’re balancing working capital against genuine supply risk. Carrier relationships and contract flexibility become actual strategic assets, not just procurement line items.
Sustained full closure beyond 30 days: The scenario nobody wants to model, but should. Oil potentially in the $100-200 range. The probability of a global recession has climbed significantly, according to most major forecasters. At this point, you’re not optimizing operations. You’re doing triage.
Nobody knows which scenario plays out. What ops leaders can control is being prepared to respond across all three.
Managing Strait of Hormuz Supply Chain Impact: What to Do Right Now
Hormuz risk isn’t new. Supply chain professionals have known this chokepoint exists for decades. What changes in a moment like this is the transition from theoretical risk to active disruption, and that transition tends to expose the gap between organizations that treat geopolitical risk as a planning input and those that treat it as a news headline.
A few things worth doing now, regardless of how this unfolds:
Map your exposure. Which SKUs have meaningful petrochemical, fertilizer, or aluminum content? Which suppliers source from the Persian Gulf region? It’s not always obvious from a category perspective, but it matters for understanding where your cost structure is most vulnerable.
Pull your carrier contracts. Fuel surcharge mechanisms, force majeure provisions, and rate adjustment clauses all look different in a $100 oil environment than they did when you signed them. Know what you agreed to before the conversation comes to you.
Call your key suppliers this week. Not when their quote windows close and their MOQs jump. Now, while there’s still room for a real conversation about lead times, buffer inventory, and shared risk.
Build a landed cost model that includes disruption scenarios. If you can’t model how $120 oil affects your total landed cost by product category, you’re making margin decisions without full information. That’s a fixable problem.
The Strait of Hormuz is 21 miles wide. The supply chain impact of a sustained closure is not remotely proportional to its size. That’s been true for a long time. What’s different right now is that the theoretical has become operational, and the time to have the planning conversation was before this moment, not in the middle of it.
If you’re working through the freight cost and inventory implications of this disruption, I’d genuinely like to hear how your organization is approaching it. Drop a comment below or connect with me on LinkedIn. And if you want to understand how disruptions like this ripple from the port level into DC operations, the port congestion post covers the downstream mechanics in detail.
