RIN Prices Approach Historic Highs
U.S. renewable fuel compliance credit prices have risen sharply in 2026 as higher federal blending requirements increase demand across the biofuel market.
According to the U.S. Energy Information Administration, prices for both biomass-based diesel and ethanol Renewable Identification Numbers had roughly doubled since the beginning of the year by early June.
On June 4, biomass-based diesel D4 RINs traded at $2.41 and ethanol D6 RINs at $2.37.
Both were close to the all-time highs reached during 2021.
The increase highlights how regulatory compliance markets can directly influence the economics of producing and blending renewable fuels.
Higher Blending Targets Drive Credit Demand
RINs are generated when qualifying renewable fuels are produced or imported into the United States.
Refiners and fuel importers covered by the Renewable Fuel Standard must either blend sufficient renewable fuel into the transportation fuel supply or acquire RIN credits to meet their compliance obligations.
The Environmental Protection Agency’s final Renewable Fuel Standard for 2026 and 2027 substantially increased renewable volume requirements compared with 2025.
Higher obligations increase demand for compliance credits and raise the incentive required for producers to supply additional renewable fuel.
For biodiesel and renewable diesel, the economics are particularly significant because each gallon can generate more than one RIN credit depending on the fuel pathway.
Higher Credits Improve Biofuel Production Margins
Rising RIN prices are also changing the economics of physical fuel production.
EIA estimates that current RIN values provide more than $3.50 per gallon in credit value for biodiesel and renewable diesel because those fuels generate multiple RINs per gallon.
Fuel ethanol has also become more attractive to blend.
When the value of D6 RIN credits is included, EIA calculates that ethanol’s effective discount to gasoline exceeded $2 per gallon during parts of May and June.
The agency expects these stronger economics, combined with higher fuel prices and increasing production capacity, to support record U.S. production of fuel ethanol and renewable diesel in 2026.
EIA forecasts renewable diesel production to rise 24 percent and biodiesel production to increase 41 percent compared with 2025.
For renewable fuel markets, the surge in RIN prices shows how compliance credits can become a major driver of production margins, blending behaviour and investment decisions.
Sources
U.S. Energy Information Administration — Higher Blending Targets Drive RIN Prices Close to Record Highs, June 10, 2026
U.S. Environmental Protection Agency — Final Renewable Fuel Standards for 2026 and 2027