Agricultural Commodity Price Volatility and Trade Policy Uncertainty: Soybean Oil Market Dynamics

Executive Summary

Soybean oil has surged roughly 54% through April 2026, outpacing most agricultural commodities, driven by the Trump administration's proposed biofuel mandates that would increase biomass-based diesel blending requirements in 2027 by levels. That structural demand surge has collided with a cyclical geopolitical shock: the conflict involving Iran drove up energy and fertilizer costs and threatened to tighten supplies across agricultural markets, boosting the appeal of crop-based biofuels while the effective closure of the Strait of Hormuz sent crop nutrient prices soaring. The result is a market where policy mandates and geopolitical disruption are now jointly setting the price floor for soybean oil, pulling the commodity out of its historic role as a food-sector byproduct and into direct competition with energy markets. Downstream food manufacturers and biofuel producers face a 12-24 month window of elevated price volatility, feedstock competition, and supply chain repositioning that will require active risk management rather than passive procurement.

The Biofuel Policy Pivot And What It Does To Price Formation

The structural story in soybean oil is now, above all else, an energy policy story. Over the past several years, the growth of soybean crush has accelerated significantly to meet growing demand for soybean oil as a feedstock for biofuel, largely driven by EPA's Renewable Fuel Renewable Volume Obligations and state-level mandates, with California's biodiesel share rising from near 25% of the state's diesel fuel pool in 2020 to over 70% during the first three quarters of 2025. The USDA's Grains and Oilseeds Outlook for February 2026 forecast soybean oil use for biofuel in 2026-27 rising to 17.3 billion pounds, up 2.5 billion from the prior marketing year.

The interplay between renewable energy mandates and agricultural commodity markets creates a reflexive price dynamic that did not exist a decade ago. When crude oil rises, biofuels become more economically attractive, pulling soybean oil demand higher, which in turn pushes food input costs up for downstream manufacturers. As StoneX Brazil Market Intelligence Specialist Ana Luiza Lodi explained, "the situation in Iran ushered oil prices higher, which tends to support biofuels too," directly connecting energy markets to soybean demand. This linkage means that food sector buyers are now exposed to energy price volatility through a transmission channel they did not have to manage a decade ago.

The transition from the Blenders Tax Credit, which provided a flat $1-per-gallon credit for biofuel blenders, to the performance-based 45Z Clean Fuel Production Credit created a period of regulatory uncertainty in 2025. The One Big Beautiful Bill Act signed in July 2025 made key updates to 45Z, extending the credit through 2029, limiting eligibility to fuels produced only in the U.S., Mexico, and Canada, and removing indirect land-use change scoring, allowing soybean oil to qualify for nearly the same level of tax credits as lower-carbon feedstocks like tallow and used cooking oil. The regulatory clarity that emerged in 2026 has therefore not merely restored confidence, it has tilted the playing field in favor of domestic soy as the preferred biofuel feedstock.

StoneX analyst Bevan Everett wrote in April that "soybean oil demand from the biofuels industry appears greater than the soybean oil industry can service without the U.S. diving further into imports for food oils and converting more domestic oils over to fuels." This is the central tension for food manufacturers: as biofuel demand absorbs an increasing share of domestic soybean oil production, food-use buyers must either pay the biofuel-equivalent price or source from more expensive or less reliable import markets.

The Trade Policy Labyrinth And Its Supply Chain Consequences

The geopolitical and political dimensions of this market are mutually reinforcing in ways that downstream buyers should track closely. The tariff regime that reshaped U.S. soybean trade flows in 2025 produced a durable structural shift: U.S. soybean exports dropped to 1.575 billion bushels in 2025-26, the lowest since 2012-13, as tariff measures curtailed shipments to China, the United States' largest export destination. This export displacement directly amplified the domestic crush sector, channeling more soybean oil toward biofuel applications and tightening the pool available for food use.

The NDSU Agricultural Trade Monitor's February 2026 findings illustrate how tariff disruptions reshape feedstock sourcing rather than eliminating demand. The tariffs did not trigger a dramatic collapse in import volumes; instead, the dominant response was trade diversion, a reallocation of sourcing across countries facing different tariff burdens, with markets adjusting by shifting suppliers rather than eliminating demand. However, global feedstock traders have said that the tariffs and the unpredictability of future policy have made global inputs riskier, with U.S. imports of Chinese used cooking oil down 27% in the first quarter compared to the same period the prior year.

This trade diversion spills directly into price dynamics for domestic soybean oil. When used cooking oil and tallow imports from China and Brazil become more expensive or less reliable, domestic soybean oil becomes the residual feedstock of choice for U.S. renewable diesel producers, supporting prices even when whole soybean supplies are ample. In early 2025, used cooking oil imports for biofuels almost equaled soybean oil used in biofuels, meaning domestic soybean oil essentially became the residual feedstock, a dynamic that new policy restricting credits for foreign fuels and biofuel feedstocks is designed to reverse, restoring domestic soy as a preferred feedstock.

The proposed EU-U.S. trade framework adds a further dimension. The framework framework includes preferential access for U.S. soybean oil alongside seafood, agriculture, processed foods, seeds, pork, bison meat, and lobster. Should that framework advance to binding commitments over the 12-24 month horizon, it could open a new export channel for U.S. soybean oil that competes with domestic food and biofuel allocations, adding further upward price pressure at the margin. Simultaneously, the withdrawal of Cargill, ADM, and Bunge from the Amazon Soy Moratorium in early 2026 following a Mato Grosso state law, combined with the EU Deforestation Regulation set to enter into force, could create openings for U.S. soy in European markets while Brazilian soy faces compliance uncertainty, though the EU-Mercosur trade agreement could counterbalance this by giving Brazilian soy preferential European access.

Both the economic and trade-policy dimensions of this situation require attention from any firm managing soybean oil exposure across food or fuel channels.

The Brazil-Hormuz Pincer: Supply Abundance Meeting Logistical Fragility

The supply-side picture for soybean oil is more complicated than the headline production numbers suggest. Brazil's record harvest is real — Brazil's soybean crop is projected to reach a record 6.5 billion bushels, up 4% from last year, according to Conab's March 2026 report — yet abundance at the farm gate does not automatically translate into price relief at the crushing mill or the food plant.

Brazil's production cost environment has deteriorated sharply: the country imports more than 80% of its fertilizer, with nearly 30% of global fertilizer exports transiting the Strait of Hormuz, whose closure stranded roughly one million metric tons and sent diesel prices surging in rural Brazil. Because the soybean crop was largely fertilized before the shock, the immediate input-cost pressure falls more on safrinha corn and on 2026-27 budgets, but freight costs hit immediately as bunker fuel prices surged from Middle East conflict disruptions to Singapore, the world's largest ship-refueling hub.

The farmdoc daily analysis from the University of Illinois makes the structural point clearly: Brazil's supply expansion is compounding with a growing domestic crush commitment. The new Brazilian B15 biodiesel mandate is expected to result in over 7 million tonnes of soybean oil being processed for biodiesel, a 9% increase compared with soybean oil consumption for biodiesel in 2024, with soybean oil accounting for approximately 75% of Brazil's biodiesel production. As a result, as Southern Ag Today reported, a growing share of Brazil's soybeans are staying at home to be crushed domestically, meaning in 2026 the key gap is between Brazil's ability to grow soybeans and its ability to move them efficiently.

These supply-side and logistics dynamics compound the existing financial uncertainty facing downstream buyers. The World Bank's April 2026 Commodity Markets Outlook quantified the macro environment: energy prices are projected to surge 24% in 2026 to their highest level since Russia's invasion of Ukraine in 2022, with overall commodity prices forecast to rise 16%, driven by soaring energy and fertilizer prices. Importantly, the IFPRI has noted that the Hormuz disruption is a fertilizer supply shock, not a crop supply shock, and that distinction matters in both price formation and appropriate policy responses. This means the most severe downstream effects for soybean production may be deferred to the 2027 crop cycle rather than immediately visible in 2026 price data.

The Food-Versus-Fuel Allocation Contest

The interplay between biofuel mandates and food manufacturing procurement creates a zero-sum allocation contest at the domestic soybean oil level. As Baking Business reported, the question of whether the food sector has begun shying away from soybean oil because its seed oil nature does not align with the administration's Make America Healthy Again agenda, or whether fuel is simply winning the food-versus-fuel debate, remains open, with USDA allocations still showing more soybean oil flowing to food use channels, but the gap between the two allocations narrowing.

For food manufacturers, the practical consequence is a two-tier cost exposure. First, the direct price impact: soybean oil jumped 16% quarterly and 25% year-on-year in early 2026, driven by U.S. renewable diesel targets released as part of fiscal measures by Congress in late March. Second, a sourcing risk: as domestic soybean oil becomes increasingly committed to biofuel channels, food manufacturers relying on the spot market face reduced availability and higher basis costs. The Purdue Center for Commercial Agriculture noted that food-away-from-home prices had already risen 4.0% year-over-year by January 2026 before the Iran conflict, reflecting cost pressures that will compound through 2026.

The food industry's exposure is not limited to the oil itself. Packaging, transportation, and refrigeration logistics all carry embedded energy costs that are now rising in tandem with the crude oil price, compounding the direct commodity exposure. The broader systemic implications include supply chain repositioning toward alternative vegetable oil sources, sunflower, canola, palm, each of which carries its own geopolitical and supply constraints. Sunflower oil supply concerns from reduced Black Sea and European crops have supported relative pricing relationships, creating premium structures that influenced purchasing decisions across the vegetable oil complex.

Counterarguments

1. The record U.S. planted acreage could burst the biofuel-driven soybean oil rally sooner than policy timelines suggest. Farm Progress reported in June 2026 that increased soybean acres could derail the market, and that "we're also close to a hard break in the soy complex if and when a U.S.-Iran peace agreement is agreed to. The crop is going into the ground at a record pace, and an increase in acres is close to a given at this point." The USDA's June 2026 acreage report showed planted area near 84.7 million acres, close to record, and if favorable summer weather delivers a near-record yield, crushing margins could compress even if RVO demand remains high. The structural supply response to high prices may arrive faster than the biofuel policy timeline warrants.

2. Competition from lower-carbon-intensity feedstocks places a ceiling on how much soybean oil can capture of biofuel demand, regardless of mandate levels. As MMCG's March 2026 analysis noted, competition from lower-carbon-intensity feedstocks such as used cooking oil or canola is beginning to cap soybean oil's growth in the renewable diesel sector, as policymakers encouraging these alternative oils for emissions reasons could limit how much soy-based biofuel demand expands. This ceiling effect means the RVO-driven demand surge may not translate fully into soybean oil price support if the carbon intensity scoring system continues to disadvantage crop-based feedstocks relative to waste oils, even with ILUC scoring removed.

3. The Brazil logistics constraint is more cyclical than structural, meaning it is moderate-to-high confidence to ease rather than persist. The farmdoc daily analysis from the University of Illinois documented that Brazilian soybean production "set records straight through the 2014-16 commodity price collapse, and the pattern appears to be repeating now," with USDA estimating a record 2026 soybean crop of 180 MMT even as farm margins sit near breakeven. Conab raised its 2026 Brazilian soybean export forecast to 116 million tonnes in April, a record. If port infrastructure investment continues and fertilizer costs moderate as the Hormuz situation normalizes, Brazilian export capacity could recover to levels that re-establish significant downward pressure on global soybean oil feedstock costs, eroding the price support that U.S. domestic mandates have created.

Securitization Theory Analysis

Securitizing Actor: The U.S. federal government, specifically the EPA, the White House, and congressional agricultural committees, is the primary securitizing actor, framing domestic biofuel supply as essential to energy and food security.

Referent Object: Two referent objects are in play simultaneously: U.S. energy independence (threatened by reliance on Middle Eastern oil and foreign biofuel feedstocks) and U.S. agricultural sector viability (threatened by export market disruption from China retaliatory tariffs and Brazilian competition).

Existential Threat Construction: The administration's framing of the largest-ever RVO announcement from the White House South Lawn, described by President Trump as "the single largest gathering of American farmers the White House has ever seen" — explicitly frames biofuel mandates as a national security and rural economic survival measure, not merely an environmental policy. The Iran conflict and Hormuz closure provided a legitimizing event that made the urgency narrative credible to a broader audience.

Target Audience: U.S. farm organizations, rural congressional districts, and biofuel industry associations. The One Big Beautiful Bill Act's restriction of 45Z credits to North American-origin feedstocks signals that the audience is also domestic-content advocates seeking to exclude Chinese used cooking oil and other foreign feedstocks.

Extraordinary Measures: The finalized RVOs represent a 61% increase in the biomass-based diesel blending requirement in a single year, a step-change that would be difficult to achieve through normal regulatory process without an existential framing of the energy security rationale.

Classification: SECURITIZED — The biofuel mandate expansion has moved beyond normal regulatory debate and is now framed as an emergency energy-security response, with the Iran conflict providing the legitimizing crisis that accelerated extraordinary policy commitments.

Process Tracing Analysis

Cause and Outcome: Cause, the convergence of finalized high RVOs and Strait of Hormuz closure. Outcome, structural elevation of soybean oil prices above food-use equilibrium, forcing downstream food and biofuel industries into active supply chain repositioning.

Causal Mechanism Chain:

1. EPA finalizes 2026-2027 RVOs at historically high levels (5.4 and 5.7 billion gallons respectively), signaling durable biofuel feedstock demand.
2. The Iran conflict and Hormuz closure drives crude oil above $100/barrel, activating the energy-biofuel price linkage.
3. Higher crude prices make biomass-based diesel economics more attractive, pulling additional soybean oil volume from food-use channels toward biofuel applications.
4. The 45Z credit structure restricts eligibility to domestic feedstocks, simultaneously reducing competition from imported used cooking oil and elevating domestic soy's pricing power.
5. Food manufacturers face higher spot prices and reduced availability, forcing either price pass-through or alternative oil sourcing.

Evidence Assessment:

• The RVO finalization and its market impact are supported by smoking-gun evidence: nearby futures surged 18% in two days on the initial EPA proposal (Baking Business, April 2026), and USDA revised the season-average soybean oil price upward by 7% in the April 2026 WASDE. This is diagnostic.
• The energy-biofuel price linkage is a hoop test passed: Bloomberg reported soybean oil jumped 3.4% in Chicago on March 30, 2026, directly correlated with crude oil price increases, consistent with the mechanism.
• The 45Z feedstock restriction's effect on domestic soybean oil premiums is straw-in-the-wind: trade sources confirm the mechanism is directionally correct, but precise quantification of the premium attributable solely to the restriction is not available in current sources.

CAUSAL_MECHANISM_STRENGTH: MODERATE — Multiple hoop tests are passed and smoking-gun evidence supports the RVO-to-price step, but the precise decomposition of the Iran conflict shock versus the mandate signal versus the 45Z restriction cannot be separately identified from available public data.

Constructivism Lens Analysis

Actor Identities: The U.S. government projects a "domestic champion" identity for American farmers and biofuel producers, framing them as strategic assets rather than market participants. Brazil projects an identity of responsible global food supplier, even as its own biodiesel mandate expansion signals a pivot toward energy self-sufficiency. China projects strategic buyer identity, using its purchase volumes as diplomatic leverage.

Operative Norms: The norm of "renewable fuel blending as domestic energy security" has moved from contested (pre-2022) to increasingly taken for granted in U.S. policy circles. The norm of market-based feedstock sourcing, which previously allowed unrestricted Chinese used cooking oil imports, is being actively contested by the 45Z North American-origin restriction.

Intersubjective Meaning: There is a contested narrative between the food industry and the biofuel industry over whether soybean oil is primarily a food ingredient or an energy feedstock. Biofuel producers and farm groups frame high soybean oil prices as farmer income restoration; food manufacturers and food security advocates frame the same prices as supply chain risk and consumer cost burden.

Norm Lifecycle Stage: The norm that biofuels are an essential component of U.S. energy security is in cascade, spreading rapidly across regulatory, legislative, and presidential framing. The competing norm that food use should take precedence over energy use in oilseed allocation is experiencing contestation, having been dominant a decade ago but now clearly subordinate to the biofuel security narrative.

Norm Lifecycle: CASCADE — Biofuel-as-energy-security norms are spreading rapidly across U.S. regulatory and agricultural policy institutions, while the food-first allocation norm is under active contestation.

Indicators To Watch

The following indicators provide observable, trackable signals for monitoring whether the current elevated price environment intensifies, stabilizes, or reverses over the next 12-24 months.

Decision Relevance

Scenario A (~55%): Elevated but stabilizing prices, Hormuz partial normalization, RVOs hold, U.S. crop is large. The Hormuz MOU leads to gradual resumption of commercial traffic by Q3 2026, moderating fertilizer and crude oil prices from their peaks. U.S. soybean planting at near-record levels with favorable summer weather delivers a large crop, partially offsetting biofuel demand pull. Soybean oil futures settle in the 58-68 cents/lb range through early 2027. Recommended actions: food manufacturers should lock in forward contracts for Q1-Q2 2027 at current levels while alternative oil sourcing (canola, sunflower) is actively evaluated as a partial hedge. Biofuel producers should secure feedstock offtake agreements with domestic crushers for 2026-27 before the September WASDE recalibrates market expectations.

Scenario B (~30%): Renewed escalation, Hormuz negotiations collapse, 2027 acreage declines on fertilizer economics. Diplomatic negotiations fail, keeping the strait effectively closed through fall 2026, preventing Brazil's normal fertilizer pre-purchase cycle. U.S. farmers face compressed margins on corn (higher nitrogen costs) and partially shift to soybeans in 2027, but overall acreage expansion is limited by high input costs. Global soybean oil supply tightens into 2027, pushing futures above 70 cents/lb. Recommended actions: food manufacturers should immediately accelerate alternative oil supplier qualification, particularly for palm oil where RSPO-certified supply exists, and evaluate product reformulation to reduce soybean oil content in high-volume SKUs. Biofuel producers should seek long-term crush capacity agreements rather than spot purchases.

Scenario C (~15%): Sharp price correction, Hormuz rapidly reopens, U.S. record crop materializes, 45Z modified. A rapid peace settlement reopens the strait within six weeks of the June MOU, crude oil falls below $80/barrel, deflating the energy-biofuel price linkage. The U.S. records a near-peak soybean harvest above 4.4 billion bushels, and a court ruling or legislative amendment modifies 45Z to restore Chinese used cooking oil eligibility, reviving import competition. Soybean oil futures fall to the 50-56 cents/lb range by early 2027. Recommended actions: food manufacturers should avoid over-committing to long-term forward contracts at current prices; biofuel producers should stress-test their margin models at sub-$1/gallon RIN values to ensure crush economics remain viable if the feedstock cost premium collapses.

Analytical Limitations

• The precise split between mandate-driven demand and energy-crisis-driven demand in the 2026 soybean oil price rally cannot be disaggregated from available public data. If the Iran conflict resolves rapidly, the portion of the price increase attributable to geopolitical risk premium could reverse sharply, leaving mandate-driven demand alone to support prices at levels that may or may not be sufficient to sustain current crush margins.
• Brazilian farm-level fertilizer purchasing data for the 2026-27 planting cycle (beginning September 2026) is not yet available. If Brazilian farmers reduce fertilizer application rates in response to input cost escalation, the 2027 South American crop could be materially smaller than current USDA baseline projections, and this assessment would require upward revision of supply risk.
• The ultimate grant rate for EPA Small Refinery Exemptions under the 2026-27 RVO program is not yet determined. Broad exemption grants could reduce effective biomass-based diesel demand by billions of gallons without any market warning, representing a downside risk to the structural demand floor this analysis relies on.
• Feed demand dynamics, particularly the meal-to-oil ratio economics of crush decisions, are treated here as secondary drivers, but a sudden contraction in global poultry or swine production (from disease, trade barriers, or feed cost pressure) could create meal oversupply that depresses crush margins even as oil demand remains strong, complicating the price formation model.
• Potential anchoring toward the biofuel-demand narrative exists in this analysis, given the density of near-term policy signals in that direction. Analysts holding the alternative view that supply fundamentals will reassert dominance over a 24-month horizon should weight the acreage expansion and Brazil logistics normalization scenarios more heavily than this assessment does.