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Friday, August 28, 2026 · 47441 stories tracked

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Trump weighs refinery biofuel waivers as heating oil holds near $4.26 a gallon

Andy Will, Chief Editor · Friday, August 28, 2026

The White House is weighing new small-refinery waivers that would let some plants off the hook for their biofuel blending obligations, and corn-state farm groups are warning it could pull demand out from under ethanol and biodiesel. For anyone who blends, that decision moves RIN costs and changes the math on every gallon you splash this fall. Trump hasn't ruled, so the number to watch is how many exemptions land and how far back they reach.

Waivers cut the volume refiners are required to blend. Fewer required gallons means softer RIN prices, which helps a refiner's compliance cost and hurts the farmer selling corn into the ethanol plant. USDA, for its part, still predicts the value of US ethanol exports keeps growing, so the export side and the domestic mandate are pulling in opposite directions right now.

Distillate into winter

Heating oil futures are around $4.26 a gallon, holding most of the prior session's gains on supply worry and geopolitical risk. That matters more than usual because inventories are thin. A former OPEC chief economist put distillate stocks at their lowest in 45 years, and said continued tightness could keep pushing price up.

The retail end is already feeling it. In New Hampshire, some home heating oil dealers have stopped offering summer pre-buy and lock-in deals because the market is too volatile to price a winter contract. When a marketer can't hedge a fixed-price offer, the customer eats the risk instead. Expect more of that if distillate stays tight and choppy.

Crude's weekly slide

Brent is $89.17 and WTI is $83.19, with Brent down 5.3% and WTI off 4.3% on the week. That drop came even with Iran tensions unresolved and Hormuz tanker traffic running weak, only seven commodity vessels through the strait Thursday against 17 the day before and a ten-day average of 15.

Working against the crude softness is refining. Ukrainian drones hit the Yaroslavl refinery, one of Russia's largest, along with the Kstovo plant, part of a wider run of strikes on Russian processing. Crude can slide while product stays firm when refining capacity comes off line, which is roughly the split you're seeing between flat-to-lower crude and heating oil holding its gains.

Ethanol export pull

Guatemala is standing up an E10 program and already took more than 13 million gallons of US ethanol ahead of the official launch, per US Grains and Bioproducts Council past chair Mark Wilson. He points to Japan moving from ETBE toward E10 by 2030, which he pegs at a 1.4 billion gallon market, and Mexico looking like another 1.6 billion gallon opening.

Those are years out and none of it is signed volume, so treat it as upside for the corn belt rather than something that changes your next rack price. But if the waiver decision softens domestic blending demand, that export growth is the offset the ethanol industry is counting on.

What to watch

The refinery waiver call is the near-term swing for anyone blending, so watch the count and the retroactive reach. On distillate, watch whether more dealers pull pre-buy offers as heating oil holds above $4. And watch Russian refinery outages against a weak crude tape, because lost refining capacity keeps product prices firm even while Brent slides.