Grains and oilseeds caught between Black Sea risk and harvest pressure

September 21 brought a mixed tone across agricultural markets. On the supportive side, wheat drew strength from reports of prices near multi-year highs, ongoing Black Sea export risk, attacks on Ukrainian logistics, fading hopes for diplomacy, and broader weather concerns. Energy-related headlines also mattered, as possible diesel export restrictions pointed to higher costs for harvesting, drying, and transport.

At the same time, the market also saw clear bearish supply signals. Russia scrapped grain export duties through the end of 2026, Russian wheat export prices reportedly fell as shipment prospects improved, and port infrastructure was being adapted to move more grain. Corn faced additional pressure from sharply higher Ukrainian exports and generally faster U.S. harvest progress. Soybeans were weighed by doubts over follow-through on larger Chinese purchases of U.S. farm goods.

Bullish factors

• Black Sea geopolitical risk remained the main support for wheat. Multiple items pointed to export disruption risk, attacks on logistics, and broader threats to global food security.
• Wheat sentiment was also supported by reports linking war, adverse weather, and harvest shortfalls to tighter supply.
• Hopes for stronger grain demand tied to U.S.-China trade talks added a positive demand signal.
• Energy and fuel headlines were supportive on cost grounds. Possible extensions of Russian diesel export restrictions, and even discussion of U.S. diesel export limits, implied higher operating and freight costs across agriculture.
• In North America, some corn and soybean stories were supportive: declining crop conditions, localized rain delays, and stronger export shipments or inspections.

Bearish factors

• The strongest bearish headline was Russia’s decision to remove grain export duties until end-2026, which points to more competitive Black Sea grain supply on the world market.
• Additional pressure came from reports of lower Russian wheat export prices and improved September shipment expectations.
• Expanded Russian port capacity for grain exports also suggests easier logistics and more available supply.
• For corn, Ukraine’s near doubling of exports and total grain shipments of 4.6 million tons added regional supply pressure.
• In the U.S., faster-than-average corn and soybean harvest progress reinforced new-crop supply pressure.
• Soybeans also faced a negative demand signal from reports that China had promised to buy more U.S. farm goods but had not followed through.
• In the sunflower complex, the tone was mildly bearish because of possible recovery of Ukrainian sunflower oil sales to India and approval for duty-free exports of 6,000 tons of sunflower oil from occupied Zaporizhzhia.

• Wheat: The tone stayed volatile. Black Sea disruption risk, weather concerns, and higher fuel costs were supportive, but Russian policy and shipment news capped the upside.
• Corn: Signals were mixed. Strong export movement and localized U.S. weather delays helped, while faster harvest progress and larger Ukrainian exports weighed on the market.
• Soybeans: U.S. harvest pressure and weaker confidence in Chinese buying were negative, though some weather-related delays offered limited support.
• Sunflower: News flow leaned slightly bearish because it pointed to somewhat better supply availability.

The day’s overall market impact looks neutral with a mixed bias. Support from Black Sea risk, weather uncertainty, and fuel-cost inflation was meaningful, but it was largely balanced by more available Russian grain, stronger Ukrainian shipments, and seasonal harvest pressure in the United States. In the near term, wheat remains the most sensitive to Black Sea developments, while corn and soybeans are likely to trade more on harvest pace and export demand signals.