After Brent crude oil rose above $90 in July, Chicago soybean and corn futures also saw gains. For investors, this was not the most intuitive trade. The Middle East situation usually first affects energy stocks, shipping costs, and inflation expectations, but this time, some of the buying pressure shifted to agricultural products.
The logic is not complicated. Corn can be processed into ethanol, soybean oil can be used for biodiesel and renewable diesel. The higher the oil price, the more economically viable alternative fuels become, and related raw materials are also bought in advance in the futures market.
But this chain is still in the expectation stage. Oil prices, exports, and weather have supported agricultural prices, but what will really determine how far the market can go is not whether oil has spiked, but whether biofuel demand, export loadings, and crop ratings can keep up.
Crude Oil Has Changed the Valuation Anchor for Agricultural Products
The starting point of this round of trading was the Strait of Hormuz risk premium brought about by the Middle East conflict. The Strait of Hormuz is a key channel for global oil transport, and the market is concerned about oil shipments being restricted. Even if there is no large-scale supply disruption, the oil price incorporates the risk ahead of time.
According to Reuters, Brent crude oil rose to $90.79 on July 20, and reports on July 22 mentioned a settlement price of $91.01. This level is enough to change the narrative of the commodity markets. Crude oil is no longer just an issue for energy assets themselves; it is also beginning to affect crops linked to fuel demand.
Joe Davis of Futures International linked the rise in grains and oilseeds to energy buying in market reports. This represents the core logic of short-term commodity bulls: rising oil prices improve expectations for demand for biofuel-related crops, and funds will first buy corn, soybean oil, and soybeans.
This assessment does not mean an immediate increase in agricultural product consumption. The futures market is betting on a potential tightening of the supply-demand balance in the future, especially when oil prices, weather, and export signals are all bullish. Funds will first bet on a price reassessment and then wait for physical data confirmation.
So, soybeans and corn were bought not because the Middle East conflict directly altered U.S. farmland, but because the oil price gave them a new valuation anchor. The market no longer only considers crop inventory and yield per acre but also starts incorporating the energy substitution value into the pricing model.
The Biofuel Supply Chain Determines Market Depth
The connection point between corn and soybeans and crude oil is biofuel. Corn is mainly associated with ethanol, while soybeans are more linked to biodiesel and renewable diesel feedstock. When oil prices are high, the market anticipates more support for fuel blending demand, production margins, and policy enforcement.
The strength of this chain determines whether this round of market activity can transition from event-driven trading to trend-driven trading. If the oil price spike is temporary, biofuel plants will not dramatically adjust their purchasing pace due to a few days of price fluctuation. It's only when the oil price remains high that producers, traders, and funds will reassess the demand elasticity for corn, soybean oil, and soybeans themselves.
The skeptics' rebuttal is also found here. The current uptrend includes risk premium and speculative funds following the energy price. There is a lag in real demand transmission, so futures price increases should not be directly interpreted as a significant surge in demand.
From oil prices to agricultural inventory, there are multiple steps involved. The improvement in biofuel profitability, whether factories are ramping up production, if raw material procurement is increasing will ultimately reflect in crushing, ethanol production, and inventory changes. Futures may rise first, but the underlying fundamentals need time to catch up.
This is also where investors are most prone to misjudgment. An oil price increase may elevate the speculative potential of biofuels, but it only offers an entry point to the market movement and does not automatically provide the end point. What truly supports further price increases is the continued validation of demand data.
Chinese Purchases and U.S. Weather Amplify Buying Pressure
If it were only the oil price, this round of agricultural commodity rally would appear more like a single-event trade. The buying pressure expanded to soybeans and corn also due to simultaneous Chinese purchases and U.S. weather risks.
A notice from the U.S. Department of Agriculture's Foreign Agricultural Service revealed that on July 17, private exporters reported sales of 340,000 metric tons of soybeans to China for delivery in the 2026/2027 marketing year. The marketing year can be understood as a sales window divided by crop cycles, and this transaction corresponds to the next season's supply and demand expectations rather than immediate spot market restocking.
Chinese purchases provided a demand anchor for soybeans. In recent years, China's actual procurement pace has been fluctuating, and a single sale cannot represent a long-term demand recovery. However, in an environment biased towards both oil prices and favorable weather, it is enough to convince the market that forward-looking demand has not vanished.
The weather acts as a supply-side amplifier. As of the crop progress report as of July 19, corn's good-to-excellent rating is approximately 67%, and soybeans are around 66%. This level has not yet indicated crop conditions are out of control, but July is a sensitive period for corn pollination and soybean pod setting. The market tends to price in heatwaves and drought pressures early.
The current market situation is driven by three overlapping forces: crude oil as a valuation anchor, exports as a demand anchor, and weather as a supply risk. Individually, each variable may not be strong enough, but when all three are present simultaneously, they will push short-term funds in the same direction.
Whether the premium can hold depends on real-world data
What needs to be assessed now is not how the Middle East situation will evolve, but how much of the agricultural product price already reflects an expected premium. If the risk in the Strait of Hormuz subsides, leading to a fall in oil prices, the first to be squeezed out could be the buying interest driven by the anticipation of biofuel.
Similarly, weather cannot be judged by headlines alone. Current crop ratings are still within an acceptable range, and whether high temperatures have truly affected yields will depend on subsequent crop progress, rainfall distribution, and adjustments to yield expectations. If the ratings do not deteriorate further, the weather premium may also retreat.
Real-world demand is the final confirmation step. Ethanol production, crushing data, biodiesel margins, and Chinese shipping pace will determine whether this rally is a short-term resonance or if the supply-demand balance is indeed starting to tighten.
The rally in soybeans and corn is fundamentally a pricing anchor shift. The market has reintroduced energy risk into agricultural prices, but until real consumption data catches up, it is still a reassessment of expectations, not a realized structural bull market.
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