Ethanol Blend Rate Breaks Ceiling as E15 Expands

Higher ethanol blend rates translate directly into stronger, more durable corn demand if regulatory momentum holds.

NASHVILLE, Tenn. (RFD-TV) — U.S. ethanol demand reached a new milestone in October, as ethanol accounted for 11.06 percent of the nation’s gasoline supply — the first monthly blend rate above 11 percent on record, according to data from the U.S. Energy Information Administration. The record underscores growing fuel demand for ethanol and challenges long-standing assumptions that blending cannot exceed 10 percent.

The Renewable Fuels Association says expanded availability of E15 and flex fuels such as E85 is driving the increase. The 12-month average blend rate also reached a record 10.48 percent in October, signaling sustained growth rather than a one-month anomaly. Iowa continues to lead adoption, with E15 representing roughly 25 percent of gasoline sales in November — nearly double early-2025 levels — while California’s recent E15 approval opens a major new market.

RFA President and CEO Geoff Cooper credits summer emergency fuel waivers and lower pump prices for accelerating adoption, while emphasizing the need for permanent year-round E15 approval and strong EPA renewable fuel standards. At an 11 percent blend rate, annual ethanol use would reach roughly 15 billion gallons.

Farm-Level Takeaway: Higher ethanol blend rates translate directly into stronger, more durable corn demand if regulatory momentum holds.
Tony St. James, RFD-TV Markets Specialist
Related Stories
Despite China’s sharp drop in grain purchases this year, new USDA export data this week shows that even some buying activity from the trade giant still moves the markets.
Corn and wheat exports remain supportive, but weaker soybean demand — especially from China — continues to pressure oilseed markets.
Slower grain movement may pressure basis, but falling diesel prices could help offset transportation costs.
A new study found that retaining the EPA’s half-RIN credit protects soybean demand, farm income, and crushing-sector strength while preserving biofuel market flexibility.
The U.S. has a bountiful corn supply, but markets are waiting for the January WASDE Report, which will include updated yield estimates.
Western Caucus member Rep. Bruce Westerman (R-AR) details the SPEED Act on Champions of Rural America. The legislation aims to reform NEPA, streamline permitting, and expand domestic energy development.
Ethanol output softened, but underlying supply-and-demand trends indicate stable longer-term use despite short-term volatility in blending and exports.
Stronger sorghum genetics could enhance the resilience of bioenergy crops and broaden production options for growers in harsher climates.
Experts say flooding the zone with more money could have unintented consequences without opening new markets for planted crops and inputs under significant pressure.

Tony St. James joined the RFD-TV talent team in August 2024, bringing a wealth of experience and a fresh perspective to RFD-TV and Rural Radio Channel 147 Sirius XM. In addition to his role as Market Specialist (collaborating with Scott “The Cow Guy” Shellady to provide radio and TV audiences with the latest updates on ag commodity markets), he hosts “Rural America Live” and serves as talent for trade shows.

LATEST STORIES BY THIS AUTHOR:

Strong export demand supports feed grain prices, but drought risk and seasonal patterns favor disciplined early-year marketing.
Corn export strength remains a key demand anchor, while China’s continued involvement in soybeans and sorghum bears close watching for price direction.
Preserving equity through active risk management remains critical in a volatile, supply-driven market.
Weather, Tight Supplies, and Planning Shape Farm Decisions
Bigger cows must wean proportionally heavier calves to justify higher ownership costs.
Improving consumer confidence supports baseline food and fuel demand, but cautious spending limits upside potential for ag markets in 2026.