US EPA Proposes Higher Biofuel Blending Volumes Through 2027

The Trump administration proposed increasing biofuel blending mandates for oil refiners to 24.02 billion gallons in 2026 and 24.46 billion gallons in 2027, up from 22.33 billion gallons in 2025, driven primarily by higher biomass-based diesel requirements, which the EPA set at 7.12 billion RINs for 2026. The proposal, welcomed by the biofuels industry after months of lobbying, also includes measures to reduce RINs generated from imported biofuels, effectively lowering the RINs per gallon projection for biomass-based diesel from 1.6 to 1.27-1.28 in 2026 and 2027.

Analysis

The Trump administration's proposal to increase total biofuel blending mandates to 24.02 billion gallons in 2026 and 24.46 billion gallons in 2027, an uplift from 22.33 billion gallons in 2025, signals a supportive stance towards the domestic biofuels industry. This growth is substantially driven by increased biomass-based diesel requirements, with the Environmental Protection Agency (EPA) proposing a quota of 7.12 billion biomass-based diesel RINs for 2026, projected to facilitate the blending of 5.61 billion gallons of the fuel, a significant rise from the 3.35 billion gallons mandated for 2025 which was criticized by the industry. Concurrently, the EPA aims to discourage biofuel imports by reducing the RINs generated per gallon from imported biofuels, revising projections for biomass-based diesel to 1.27 and 1.28 RINs per gallon in 2026 and 2027 respectively, down from a previous average of 1.6 RINs. This policy shift, which has been welcomed by biofuel producers and follows extensive lobbying, surprisingly surpasses the 5.25 billion gallon biomass diesel blending target for 2026 requested by an unusual coalition of oil and biofuel groups. If finalized, this proposal will materially affect the economics of billions of dollars in fuel and tradable credit transactions, impacting both biofuel producers and oil refiners.

Key Decisions for Investors

• Investors should assess opportunities in domestic biofuel companies, particularly those focused on biomass-based diesel, which are poised to benefit from higher volume mandates and measures disincentivizing imports.
• Oil refiners will likely face increased compliance costs due to higher blending obligations; however, the fact that proposed volumes for biomass-based diesel exceed even a joint oil-biofuel industry request suggests a complex dynamic that warrants careful monitoring of individual refiner strategies and RIN market exposure.
• Closely track the finalization of the EPA's proposal and subsequent movements in RIN prices, as these will be critical determinants for the profitability and valuation of companies operating within the biofuel and refining sectors.