U.S. Ethanol Production and Stocks Fell to Multi-Week Lows
Output and inventory levels declined across the country as the industry awaits a new corn harvest.
Updated on Sept. 23, 2026 in Manufacturing
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U.S. ethanol production dropped to an average of 1.028 million barrels per day for the week ending September 20, 2026. This represents a weekly decrease of 71,000 barrels per day, while total ethanol stocks also fell by 537,000 barrels.
Why it matters
The recent decline reflects seasonal maintenance at production facilities and lower purchasing activity from refiners and blenders. The industry is currently in a transitional period while awaiting newly harvested corn supplies.
Ethanol production averaged 1.028 million barrels per day, a decline of 71,000 barrels per day from the prior week. Total stocks finished at 24.683 million barrels, down 537,000 barrels from the previous week's figures.
The players
USDA
The United States Department of Agriculture is a federal executive department responsible for developing and executing federal laws related to farming, forestry, and food.
The details
Refiners and blenders reduced their net ethanol inputs during this period, contributing to the broader downturn. Meanwhile, average ethanol exports also decreased, falling by 39,000 barrels per day to reach 122,000 barrels per day.
Timeline
Week ending September 20, 2026: Production and stock levels were recorded.
October 9, 2026: The USDA will release an updated corn for ethanol use projection.
Market Landscape
This production downturn reflects a period of seasonal adjustment as the sector navigates the current crop cycle. The data follows a pattern set by the USDA's corn for ethanol use projections, which dictate supply expectations for the fuel market.
While typical Iowa ethanol plants continue to maintain positive operating margins, reduced production volumes can influence market supply chains for fuel blenders. Consumers may monitor these trends as indicators of potential shifts in domestic fuel additive availability.
The takeaway
Ethanol production is highly sensitive to the seasonal availability of corn and routine plant maintenance cycles. Industry observers should watch for the upcoming USDA projection to understand if these temporary production dips will persist through the harvest season.
What happens next
The USDA is scheduled to release an updated projection for corn used in ethanol production on October 9, 2026.
Further reading
For additional context on industrial output, visit the United States Manufacturing section.
Live Poll
Do you expect fluctuations in ethanol production to increase your energy costs in the coming months?
