D4 renewable fuel credit production rose in April, though output still trails the pace needed to meet 2026 renewable fuel targets, TPH Energy said Friday.
April D4 RIN generation rose to 422 million from 399 million in March and 363 million a year earlier, while domestic supply made up 100% of sourcing for the second straight month, TPH Energy said.
In April, renewable diesel accounted for 64% of the fuel mix, down from 65% in March, according to TPH Energy.
Biodiesel accounted for 31% of the April mix, up from 29% in March, while sustainable aviation fuel represented 5%, down from 6% a month earlier.
Renewable diesel utilization climbed to 72% in April from 69% in March, while biodiesel utilization increased to 79% from 72% over the same period, according to TPH Energy.
TPH Energy estimates combined D4-D5-D6 RIN generation will reach 21.63 billion in 2026 after year-to-date growth of only 6%, well below the Renewable Volume Obligation target of 25.45 billion.
Even if all US renewable diesel and biodiesel capacity operates at full rates for the rest of 2026, total D4-D5-D6 generation would still reach only 24.20 billion, missing the target by 5%, TPH Energy said.
Overall, TPH Energy said the trends remain positive for US renewable diesel producers such as Darling Ingredients (DAR), as well as for feedstock suppliers Archer-Daniels-Midland (ADM) and Bunge Global (BG).
D3 RIN generation rose to 118 million in March from 109 million in February and 99 million a year earlier, while year-to-date growth of 27% puts projected 2026 generation at 1.39 billion versus the 1.36 billion mandate, the report said.
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