Biodiesel-related renewable fuel credits in the United States have surged to record levels, supported by stronger federal biofuel blending mandates, tightening supplies and volatility in global energy markets. The rally reflects growing demand for biodiesel and renewable diesel as the US Environmental Protection Agency (EPA) pushes for higher renewable fuel usage under its 2026 Renewable Fuel Standard (RFS) program.
Credits tied to biodiesel and renewable diesel blending, known as D4 Renewable Identification Numbers (RINs), climbed to a record $2.26 per credit on Thursday and rose further to $2.32 on Friday. Prior to the EPA’s announcement of new biofuel mandates on March 27, D4 RINs were trading at around $1.50, The Economic Times reported.
The EPA has established biomass-based diesel requirements of 9.07 billion RINs for 2026. Under the program, each gallon of biodiesel generates about 1.5 D4 RINs, while renewable diesel generates approximately 1.7 RINs.
Ethanol blending credits, known as D6 RINs, also reached an all-time high of $2.225 per credit on Thursday, reflecting broader strength across the renewable fuels market.
Market analysts attribute the sharp rise primarily to the EPA’s stronger blending requirements, which have increased demand for biodiesel and renewable diesel. The policy has also boosted demand for feedstocks such as soybean oil, whose prices have climbed nearly 27 percent since late February.
Energy market volatility has provided additional support. Expectations of easing geopolitical tensions involving Iran have weighed on conventional diesel prices. As diesel prices decline while biodiesel production costs remain elevated, the economic gap between the two fuels widens, requiring higher RIN values to incentivize blending.
Paul Niznik, Director of Energy at Capstone LLC, said the stronger EPA mandate remains the main driver of higher credit prices, while lower diesel prices have further increased the need for stronger renewable fuel incentives.
Meanwhile, biodiesel and renewable diesel production continues to lag behind the levels needed to satisfy federal mandates. D4 RIN generation reached only 690 million credits in April, significantly below the roughly 915 million credits required each month to meet the EPA’s annual target, adding further upward pressure on prices.
Industry experts believe renewable fuel credit values could continue rising if production remains constrained or if petroleum fuel prices weaken further. With stronger mandates, tight supply conditions and uncertainty in global oil markets, the biodiesel sector is expected to remain a key focus of the US renewable energy landscape in 2026.
