March 19, 2026
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No institution has published a consolidated projection of the simultaneous disruptions caused by the closure of the Strait of Hormuz. Not the Fed, not the USDA, not the IMF, not any of the bank research desks that have published category-specific analyses over the past three weeks. The individual numbers exist. The sum does not.
What follows is The Convergence Report's attempt to build that sum. Every input is drawn from public sources cited throughout this series and updated through March 18, 2026. Every range is built on three duration scenarios: a 30-day closure, a 60-day closure, and a closure extending 90 days or more. The assumptions are visible. The reader can judge them.
These are ranges, not predictions. The width of each range reflects the degree of uncertainty in the underlying data. Where the data is strong — diesel prices, urea benchmarks, aluminum futures — the ranges are tighter. Where the data is thinner — DEF supply, pharmaceutical pass-through timing, downstream cobalt effects — the ranges are wider and marked accordingly.
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The strait has been effectively closed for 19 days as of this writing. The war shows no sign of resolution. Iran's new supreme leader has publicly vowed to keep Hormuz closed. No naval escort agreement has been reached. The IEA's record 400-million-barrel emergency reserve release covers approximately one quarter of the supply gap. These are the conditions under which the following projections are built.
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OIL / DIESEL / GASOLINE
Pre-war baseline: Brent closed 2025 at $60.92. U.S. diesel averaged $3.65–3.76 per gallon in February 2026. Gasoline averaged $2.92–2.98.
Current as of March 18: Brent has traded between $92 and $120 since the closure, closing above $100 for consecutive sessions last week. Diesel hit $5.07 per gallon today, up 34–38 percent from pre-war levels. Gasoline at $3.84.
The IEA's March Oil Market Report called this the largest supply disruption in the history of the global oil market. Approximately 20 million barrels per day of crude and product exports have been disrupted. Gulf producers have cut at least 10 million barrels per day of production as storage fills and export routes remain closed. Bank of America raised its 2026 Brent forecast from $61 to $77.50, modeling two scenarios: normalization by April averaging $70, or extended conflict averaging $85. A severe scenario at $130 average was noted as unlikely but possible. Goldman Sachs estimated an $18-per-barrel geopolitical risk premium embedded in current prices.
(Sources: IEA Oil Market Report, March 2026 / BofA commodities note, March 16, 2026 / Goldman Sachs research, March 2026 / AAA Fuel Prices / FRED / EIA Weekly Petroleum Status Report / CNBC, March 17, 2026 / Fortune, March 18, 2026)
One variable the projection must acknowledge: Venezuelan heavy sour crude is the specific grade Gulf Coast refineries are configured to process — the grade that produces diesel, asphalt, and industrial fuels. The U.S. operation to capture Maduro and secure access to Venezuela's 303 billion barrels of proven reserves was documented in The Other Bank series published by this report on March 13. If Venezuelan crude is redirected from China to the Gulf Coast, it could theoretically offset some of the Hormuz-driven diesel pressure. However, Venezuelan oil infrastructure has been in collapse for a decade. Even under optimistic timelines, rebuilding to meaningful production volume requires years and tens of billions of dollars in capital investment. The relief valve exists. It cannot provide relief on any timeline covered by the projections in this table.
(Source: The Convergence Report, The Other Bank: The Terrain, March 13, 2026 / OPEC Annual Statistical Bulletin, 2025 / US Energy Information Administration)
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FERTILIZER / PLANTING
Pre-war baseline: Urea at NOLA traded around $450–516 per metric ton in early 2026. The corn-urea ratio was already elevated.
Current as of March 18: Urea jumped from $516 to $683 per metric ton in the first week of the closure — a 32 percent increase. Retail urea is now $674 per ton. Anhydrous ammonia above $900 per ton for the first time since May 2023. The corn-urea ratio sits near 87 to 90 bushels per ton, a five-year high. At least 21 ships carrying nearly a million metric tons of fertilizer are stranded in the Gulf. QAFCO and SABIC have declared force majeure. Sulfur prices have doubled, with 44 percent of global seaborne sulfur transiting Hormuz. The sulfuric acid market had already risen 500 percent before the conflict began.
The American Farm Bureau confirmed that Gulf states produce 49 percent of global urea exports and 30 percent of ammonia exports. Analysts on U.S. Farm Report project 1 to 1.5 million acres could shift from corn to soybeans this spring. Oxford Economics raised its Q2 fertilizer price forecast by approximately 20 percent, with risks skewed to the upside. Fitch Ratings puts global urea at approximately $591 per metric ton, up roughly 25 percent.
The planting window is the binding constraint. The Northern Hemisphere spring window runs three to four weeks. Decisions being made this week determine what is on American grocery shelves in October.
(Sources: CSIS / AgWeb / AFBF / DTN Fertilizer Index, March 18, 2026 / Oxford Economics / Fitch Ratings / CME Group OpenMarkets / Food Ingredients First, March 15, 2026 / NBC News / The Oregon Group)
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FOOD PRICE INFLATION
Pre-war baseline: The USDA's February 2026 Food Price Outlook projected 3.1 percent food price inflation for 2026, with food-at-home at 2.5 percent. This forecast was built entirely before the war. It does not include the Hormuz disruption. It does not include the fertilizer shortage. It does not account for the tariff shock from April 2025, which has not yet fully passed through to consumer prices.
Current indicators: Grocery prices rose 0.4 percent from January to February 2026, up 2.4 percent year-over-year. Beef and veal prices are 15 percent above January 2025 levels. Producer prices came in hot on March 18 — goods prices up 1.1 percent in February, the largest monthly increase since August 2023. Core PCE inflation has run at 0.4 percent monthly for three consecutive months, double the pace needed to return to target. The Federal Reserve Bank of St. Louis has documented high correlation between crude oil prices and the global food price index.
The 30-day range assumes diesel pass-through to perishables (dairy, produce, meat) with fertilizer costs priced in but not yet visible at shelf. The 60-day range incorporates the planting window loss, corn-to-soybean acreage shift, full diesel pass-through, and convergence with the tariff shock arriving over the same period. The 90-day range approaches the 2022 peak of 11 percent food inflation, driven by structural crop shortfall plus full input cost cascade across energy, fertilizer, freight, and packaging.
Food prices are already 24 percent above pre-COVID levels. Consumer sentiment is near historic lows. Goldman Sachs has raised recession probability to 25 percent. These are the conditions into which the food price shock arrives.
(Sources: USDA ERS Food Price Outlook, February 2026 / BLS Consumer Price Index / BLS Producer Price Index, March 18, 2026 / Federal Reserve Bank of St. Louis / Goldman Sachs / Fortune, March 13, 2026 / CNN, March 17, 2026 / Axios, March 13, 2026)
Note: DEF-specific price data is thinner than the other categories. The structural connection is documented — DEF is 32.5 percent urea solution, and urea is the same commodity in shortage — but standalone DEF price indices with the same granularity as diesel or urea benchmarks have not been published. The DEF/freight ranges in the projection table are derived from the underlying urea data and the established relationship between diesel costs and freight rates. They are directionally sound but carry wider uncertainty than the other categories.
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PHARMACEUTICALS
Forty-seven percent of U.S. generic prescriptions originate in India. India imports approximately 40 percent of its crude oil through the Gulf. That oil feeds into the petrochemical inputs used throughout pharmaceutical manufacturing. Chemical inputs from China are commonly consolidated through Dubai and UAE logistics hubs before reaching Indian drug manufacturers. Those hubs are degraded.
Current API price increases since December 2025: Thiocolchicoside up 106 percent. Glycerin up 64 percent. Amoxicillin Trihydrate up 45 percent. Paracetamol up 26 percent. Ciprofloxacin up 20 to 30 percent. Solvents up 20 to 30 percent. Approximately 40,000 to 45,000 Indian containers are stranded, representing $1 to $1.5 billion in export cargo. War risk surcharges are running $3,000 to $5,000 per container.
Most medical distributors hold 30 to 60 days of supply. That buffer defines the timeline. At 30 days, the buffer holds and shortages remain invisible. At 60 days, fast-moving generics — the high-volume drugs for diabetes, hypertension, and common infections — begin running short. At 90 days, the shortage becomes systematic. Generics are 90 percent of prescriptions filled in the United States. The drugs most at risk are the ones with no brand-name substitute at comparable cost.
(Sources: CNBC, March 16, 2026 / OpenPR Indian Pharmaceutical Industry report, March 14, 2026 / RELEX Solutions / Infios / Indian Pharmaceutical Alliance)
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ALUMINUM
Pre-war baseline: LME aluminum traded in the $2,600–2,800 per tonne range through early 2026.
Current as of March 18: LME aluminum hit $3,544 per tonne, the highest since March 2022, before settling around $3,370. Alba, the world's largest single-site smelter, has begun a phased shutdown of 19 percent of capacity. Qatalum is operating at 60 percent capacity. Combined: approximately 560,000 tonnes of annual production disrupted. European premiums have reached $436 per tonne, a three-and-a-half-year high. U.S. premiums hit a new record of $1,075.
ING projects aluminum could exceed $4,000 per tonne under a severe disruption scenario. Goldman Sachs's base case is $3,150 average for H1 2026, with $3,600 if regional production is lost for one month. Gulf smelters hold three to four weeks of raw materials. Norsk Hydro has stated that a full restart of Qatalum may take up to 12 months. The downstream exposure runs through automotive parts, aerospace components, beverage cans, construction materials, and consumer electronics casings.
(Sources: ING commodities research, March 15, 2026 / Goldman Sachs, March 3, 2026 / Bloomberg, March 15, 2026 / Fortune, March 15, 2026 / The National, March 10, 2026 / CNBC, March 18, 2026 / Fastmarkets / IndexBox / International Aluminium Journal)
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COPPER / NICKEL / COBALT
The Middle East accounts for 24 percent of global sulfur production and approximately 50 percent of seaborne sulfur trade. Sulfur becomes sulfuric acid. Sulfuric acid is essential to copper extraction, nickel processing, and cobalt recovery. The sulfuric acid market was already historically tight before the closure — prices had risen 500 percent prior to the conflict.
Indonesia, which produces more than half of global nickel, imported 5.2 million metric tons of sulfur in 2025, up 44 percent year-over-year. Approximately 75 percent of that supply comes from the Middle East. HPAL plants hold one to two months of sulfur inventory. Robert Friedland of Ivanhoe Mines warned publicly that copper oxide mines would shut down within three weeks of acid depletion. S&P Global's March assessment noted that copper's immediate price impact has been muted due to exchange inventories and dollar strength, but that nickel is structurally more vulnerable through the sulfur-to-acid supply chain.
The 60-day and 90-day scenarios carry the heaviest consequences for this category. The DRC produces approximately 70 percent of global cobalt. African copper operations are already preparing force majeure declarations. The downstream runs through every EV battery, every grid storage installation, and every semiconductor manufacturing schedule already planned for 2026.
(Sources: S&P Global Market Intelligence, March 16, 2026 / The Oregon Group, March 10, 2026 / Ivanhoe Mines / IDN Financials, March 8, 2026 / E&E News / Politico, March 15, 2026 / African Mining Online, March 10, 2026 / Payne Institute, Colorado School of Mines, March 13, 2026 / Benchmark Mineral Intelligence)
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WHAT THE TABLE DOES NOT SHOW
The table projects each category independently. That is the responsible way to present ranges under uncertainty. But the actual impact is not independent. The categories interact.
Diesel prices increase freight costs. Freight costs increase the delivered price of fertilizer. Fertilizer costs increase the cost of corn. Corn costs increase the cost of livestock feed. Livestock feed costs increase the cost of meat. Meat arrives by truck. The truck runs on diesel. The truck's emissions system runs on DEF. The DEF is made from urea. The urea is stranded in the Gulf.
The sulfuric acid shortage forces mining companies and fertilizer producers to compete for the same constrained supply — sulfuric acid demand is 60 percent fertilizer, the remainder metals. When the mining industry bids up sulfuric acid, fertilizer costs rise further. When fertilizer costs rise, food costs rise further. Each category is a feedback loop into at least one other.
The tariff shock from April 2025 has not yet fully passed through to consumers. That cost arrives between now and October — the same window in which the fertilizer shortage, the diesel spike, the pharmaceutical exposure, and the aluminum disruption are all landing. Two independent price pressures converging on the same calendar.
No model captures all of these interactions simultaneously. The table is a floor, not a ceiling.
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The war is 19 days old. The strait remains closed. The planting window is closing. The distributor buffers are counting down. The smelter inventories are drawing down. The sulfur stocks are running out.
Each of these timelines was knowable before the first bomb fell. The data in this projection is drawn entirely from public sources, industry reports, and on-the-record statements by analysts, executives, and farmers. Nothing here required classified intelligence. It required someone to add it up.
This is the receipt. The items are listed. The total is still running.
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The Convergence Report has been tracking the shape of this conflict since before the first strike. The Butcher's Bill series is available in full at theconvergencereport.substack.com