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Fertilizer Markets: Small Price Moves, Limited Room for Supply Surprises

OSUNPK Fertilizer Market Outlook | November 2, 2026

Oklahoma fertilizer prices moved modestly higher for most products in the October 30 USDA reporting period, with ammonium sulfate posting the largest reported increase at $20 per short ton. DAP increased $9.50, while ammonia declined $5.83. Those relatively small changes do not tell the entire story. Fertilizer inventories and the timing of purchases remain important as producers and dealers prepare for upcoming demand.

Price-source note: The graphic’s Oklahoma average, minimum, and maximum are USDA Agricultural Marketing Service Oklahoma Production Cost Report figures for October 26–30, 2026, reproduced by Farm Market Prices. The original USDA table was not accessible for independent full-precision verification, so averages in the graphic are rounded to whole dollars. USDA does not identify contributing dealers. Named public cash quotes, including Two Rivers Cooperative, are monitored separately and are not combined with USDA statistics.

The Oklahoma report showed increases of $1.36 per ton for urea, $4.20 for UAN 28%, and $4.57 for UAN 32%. These changes are small relative to current price levels. Phosphates increased more, with DAP up $9.50 and MAP up $3.50. Potash changed little. ATS was reported at an average of $415 per ton, but a comparable previous-period movement was not available from the secondary table. These are USDA-reported changes, not independently calculated changes from the rounded averages.

The bigger concern is the limited inventory cushion in the distribution system. In an October 21 StoneX discussion, fertilizer analyst Josh Linville described how farmers, retailers, and distributors have each delayed purchases to avoid carrying high-priced inventory. That reduces the financial risk of owning fertilizer if prices fall, but it also leaves less product positioned for a sudden increase in demand. Fertilizer can be available in the broader market without being immediately available at a local dealership.

International conditions add another layer of uncertainty. Disruptions around the Strait of Hormuz have affected expectations for nitrogen and phosphate supply, while shipping capacity and the timing of vessel movements remain concerns. Even if transportation conditions improve, moving fertilizer into the right markets takes time. The reverse is also important: improvement in trade flows could reduce some price pressure, making a single price-direction forecast difficult to defend.

Sulfur is another market worth watching. Ammonium sulfate rose noticeably in the Oklahoma report, and recent industry commentary has highlighted sulfur supply disruptions. Sulfur is also used in phosphate fertilizer manufacturing, so constraints can influence more than sulfur-containing fertilizer prices. AMS and ATS should not be compared by tonnage alone: each carries nitrogen as well as sulfur, and their formulations and handling requirements differ.

For the coming weeks, watch the pace of fall purchasing, dealer inventory positions, international shipping conditions, and whether phosphate and sulfur price movements continue. For Oklahoma producers, the practical response is to verify local prices and availability early, compare the cost of the nutrients actually needed, and base application rates on soil tests and expected crop response rather than price headlines alone.

Disclaimer: Fertilizer markets, local prices, and availability can change quickly. Confirm prices, formulations, and delivery terms with local dealers.

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