The Fuel Shock: Iran-Driven Diesel Freight Impact
One number on the US Energy Information Administration's (EIA) weekly diesel report shapes the freight cost. For the week of May 18, 2026, the US national average retail diesel price was $5.596 per gallon. Down 4.3 cents from the prior week, but still roughly 50% above the same week in 2025. The US–Israeli strikes on Iran in February and the subsequent closure of the Strait of Hormuz pulled crude oil prices sharply higher within weeks, and diesel followed.
Regional dispersion is sharp:
- West Coast: $5.61/gal
- California: above $7/gal
- East Coast: $4.31/gal (Central Atlantic running $4.53)
- Midwest: $4.40/gal
- Gulf Coast: $3.95/gal
Every major US carrier ties its fuel surcharge to the EIA's weekly diesel average. When diesel rises, the surcharge percentage rises automatically, applied on top of base freight rates.
How Diesel at $5.60 Flows Into Every Can Shipment
FedEx Freight, ArcBest, and most major less-than-truckload (LTL) carriers are operating in the 30–40% fuel surcharge band of their published matrices meaning roughly one-third of every base freight charge is being added back as fuel. Fuel surcharges now account for 15–25% of total freight cost on many craft beverage lanes, up from a more typical 8–12%.
The fuel shock is the inciting event, but fuel alone isn't what's making this structural. The diesel spike landed on a trucking market that had already spent three years quietly losing capacity. That's why freight rates are unlikely to unwind even if diesel softens further.
Why the Shock Won't Fade: The Trucking Industry Quietly Lost a Decade of Slack
If the diesel spike had hit the 2022 trucking market, carriers would have absorbed it. There was excess capacity sitting idle, margins were thin but cushioned, and spot rates would have moved modestly. The shock would have faded.
That's not the market this diesel spike hit. The fuel surge is landing on a trucking industry that has spent three straight years quietly losing capacity. The Federal Motor Carrier Safety Administration reports an 11.4% decline in working carriers from December 2022 through December 2025, with trucking employment down 4.7% over the same period.
Three Forces Accelerating Carrier Exits in 2026
-
The CDL crackdown: The US Federal enforcement against drivers with non-US-issued Commercial Driver's Licenses, combined with English-language proficiency checks, is pulling drivers off the road weekly.
-
Fleet exits: Carriers that survived three years of depressed rates are now exiting. The average truck on US roads is 6.3 years old, a decade-high indicator of fleets aging out without replacement.
-
The net effect: Fewer trucks are bidding on more freight. Rates are pushing up and booking windows are shrinking, meaning shippers have less time between order and pickup to find capacity.
Demand Is Now Climbing Into a Smaller Supply
At the exact moment supply hit bottom, demand began rebuilding. Spot-market freight rates (what shippers pay when they can't get a truck through their normal contracts) are now running roughly 32% above the same week in 2025, according to DAT Freight & Analytics, and about 30% above the pre-pandemic five-year norm. C.H. Robinson, one of the largest freight brokers in North America, raised its 2026 cost forecast to +16–17% year-over-year in May and flagged that shippers are increasingly being pushed into spot-market pricing. This means more freight, fewer trucks, prices going up, and shippers losing the ability to lock in rates the way they could a year ago.
A route-guide failure is the moment a shipment falls out of your contracted carriers and into the spot market, usually at 20–30% higher rates on the same lane. So far in 2026, that's happening more often, and you usually learn about it on the invoice. For craft beverage producers, freight cost has shifted from a stable line item to a moving target.
What This Actually Costs You: Per Can, Per Truckload, Per Year
Numbers on a freight index are abstract. Here's what they translate to on a craft beverage P&L.
For a typical full-truckload shipment of empty cans, freight runs 10–20% of the total landed cost delivered to your door. That share rises further on LTL, on coast-to-coast routes, and on high-cost lanes out of California and the Pacific Northwest.
-
Per Can: On a 24-pallet truckload of roughly 200,000 cans, this means $0.0014–$0.0021 in added freight cost per can. Small in isolation, but not small in aggregate.
-
Per Truckload: Combining the fuel surcharge increases with base linehaul increases, a typical beverage truckload is now absorbing $280–$420 more per shipment from fuel surcharges alone. This is a 14–16% per-truckload cost increase versus a year ago.
-
Per Year: For a regional brand running 5–10 million cans a year, the inbound can-freight increase scales to $7,000–$21,000 a year. A reasonable estimate of the total freight headwind across inbound cans, inbound ingredients, and outbound finished goods (which moves at 5–7× the per-shipment rate due to heavier loads and more varied routes) lands in the $50,000–$150,000 range for most operators.
The Compounding Picture: Aluminum, Tariffs, and the Iran War
The freight squeeze isn't happening to a stable aluminum market. It's stacking on top of the aluminum and tariff pressures detailed in the April edition of The Aluminum Report, and most of those pressures have intensified.
-
LME aluminum is near a four-year high: Prices traded at approximately $3,644 per metric ton on May 21, 2026, up 48% year-over-year. Emirates Global Aluminium's flagship plant remains on a 12-month restart timeline; Aluminium Bahrain remains suspended.
-
The US Midwest Premium is still elevated: The aluminum surcharge that gets added to the London base price for US delivery is trading in the $1.16/lb range, roughly four times year-earlier levels. The Section 232 tariffs and speculation is still the primary driver.
-
The Strait of Hormuz remains contested: 40 ships transited the strait the entire week to May 3, against a pre-war average of 120 per day. The US naval blockade of Iranian ports continues. President Trump announced a temporary pause in US naval operations on May 6, citing negotiation progress, but commercial traffic remains near zero.
What Macro Brands Are Doing: Why It's the Cover Story for Craft
The Q1 2026 earnings cycle made the freight + aluminum + tariff picture impossible to ignore. The pattern across the macros is consistent: acknowledge the hit publicly, quantify it precisely, take pricing action.
How Major Brands Are Responding
-
Coca-Cola reported $35 million in additional Q1 input costs caused by "geopolitical conflicts, supply constraints, and the impact of elevated import tariffs." Adjusted gross margin fell 70 basis points.
-
Molson Coors reported the rising Midwest Premium added approximately $30 million to Q1 cost of goods sold on top of a previously disclosed $125 million 2026 aluminum headwind.
-
Keurig Dr Pepper explicitly named aluminum as Iran-war-impacted, with the CFO signaling margin-protection mitigation plans.
The macros aren't absorbing this quietly. Every one of these data points is in an SEC filing, an earnings call transcript, or a public-record statement. For craft beverage operators, this is the cover story for the retail and distributor conversations that need to happen now. The category narrative is no longer "small producers passing through cost increases," it is "every Fortune 500 beverage company is reporting margin pressure from the same set of inputs."
One Midwest Brewer's Playbook for Getting Ahead
A clear signal of how The Aluminum Report has practical use came from a recent call with a regionally distributed Midwest craft brewery producing roughly 1 million cans per year:
"Based on these reports we've already been talking with our sales and marketing teams about a potential price increase in Q4. They pushed back hard noting we're already down in volume. We're going to really start to evaluate current pricing and plan to bring some of these macro examples as an opportunity to generate conversations with retailers. We're looking at ways to protect a blended margin, and assessing with SKUs can justify a price increase. We usually don't start this process until July, but because of where the market sits we need to start it now."
This Is What Most Craft Producers Are Not Yet Doing
-
Starting the pricing conversation months earlier than usual: Waiting is expensive, and the Aluminum market is not going to recover quickly.
-
Bringing external evidence: The macro brand pricing actions in the April edition of The Aluminum Report, make it more compelling to overcome the natural pushback that comes with any price discussion.
-
Approach it as blended margin: Rather than across-the-board price increases, identify which SKUs have pricing room and which don't, based on competitive position.
Section 07
Four Moves to Protect Margins Before Q3
Summer is the highest-volume, highest-freight-cost window of the year for canned craft beverage. Spot rates typically peak between June and September, and 2026's rates are entering that window from already-elevated levels. Producers should be acting on four levers simultaneously:
When freight was 8% of landed can cost, burying it inside cost of goods was defensible. At 15–20%, with the most volatile movement of any input, it's the single highest-leverage line in the cost model. Separate inbound can freight, inbound ingredient freight, and outbound finished-goods freight as distinct lines. Compare every rate increase against published DAT or SONAR benchmarks for the lane.
The single biggest margin leak Cask continues to see across 500+ operator conversations is co-pack and distribution agreements without cost escalator language. At renewal, every contract should include a fuel surcharge pass-through indexed to the EIA national diesel average and an aluminum cost escalator triggered at defined Midwest Premium or LME thresholds. Audit existing agreements for any pass-through trigger language that may already entitle a price adjustment.
Spot market exposure is the most expensive way to move freight in 2026. Move LTL into consolidated FTL where pallet counts allow. Push planning horizons to 30–60 days on long-haul lanes. Lock contract pricing with primary carriers ahead of the Q3 peak. By Labor Day, spot rates and carrier leverage will both be higher.
These are external, citable data points, not internal projections. Producers who bring this category-wide narrative to retail and distributor conversations are not asking for a favor. They are matching the playbook the rest of the category has already executed.
Optimize Aluminum Can & Lid Supply in 2026
When freight is 10–20% of landed can cost and when fuel, capacity, aluminum, and tariffs are all moving against the producer at once, the value of a supplier with proactive freight planning, and quarterly cost visibility matters.
Cask Global Canning Solutions is a 25+ year Distribution Partner of Ball Corporation. We supply aluminum cans and lids to craft beverage businesses in the United States, Canada, and the United Kingdom, with dedicated account management, quarterly planning, and proactive supply-chain support designed to surface real cost-savings opportunities in tight markets like this one.
Our team is here to help build a smarter can supply program for your business and a smarter freight strategy around it.