US Refiners Told Trump Biofuel Mandates Are Lifting Pump Prices
Refining executives at Tuesday's closed-door White House meeting blamed federal blending quotas for elevated gasoline and diesel costs as inventories ran well below seasonal norms.
Refining executives who met with President Donald Trump on Tuesday (2026-09-01) used part of the hour-long session to push back on federal biofuel-blending requirements, arguing that quotas compelling them to mix alternative fuels into gasoline are raising prices at the pump, according to people familiar with the conversation who asked not to be named because it was private. Trump had called the meeting to pressure producers to expand domestic gasoline and diesel output.6
The federal Renewable Fuel Standard requires refiners to blend set volumes of ethanol and renewable diesel into transport fuels, or purchase compliance credits known as renewable identification numbers, or RINs, from producers who generate a surplus. Those credits have roughly doubled in price since the start of 2026, driven by higher blending targets, according to EIA data. For refiners unable to blend enough in-house, the RIN burden has become a direct drag on margins at a moment when the administration is demanding more output.3
The EPA has estimated the current mandates carry an annual cost of at least $20 billion. In late June (2026-06-25), nearly three dozen conservatives, including some described as longtime Trump allies, wrote to the House calling the quotas the "largest, most expensive RFS mandate in history and the single most expensive regulation of President Trump's second term," Rigzone reported.4
That pressure has not moved policy. Blending targets for 2026 remained in place when Tuesday's (2026-09-01) meeting concluded.6
The physical market context explains why the administration convened the meeting. Gasoline inventories are running 5% below the five-year average, while distillates — which include diesel and heating oil — sit 9% below that mark, EIA data show.1,2
US commercial crude stocks fell 8 million barrels in the week ending 2026-05-25, the eighth consecutive weekly decline, leaving crude inventories 3% below the five-year average, EIA reported on Wednesday (2026-06-03). The government also released 8 million barrels from the Strategic Petroleum Reserve during the same week, bringing SPR levels close to the low touched in July 2023 after Biden-era emergency releases tied to Russia's invasion of Ukraine.2
NYMEX heating oil front-month was trading at $4.66 a gallon and US diesel at $4.73 a gallon on Wednesday (2026-09-02), with NYMEX WTI front-month at $90.63 a barrel and ICE Brent crude front-month at $95.23 a barrel. Those levels carry direct political weight for an administration facing November midterms.6
Biofuel production has expanded sharply even as compliance costs climbed. EIA projected renewable diesel output rising 24% in 2026 compared with 2025, biodiesel up 41%, and fuel ethanol's share of motor gasoline consumption edging to 10.7% from 10.5% the year prior. Volume growth has not lowered RIN prices because mandated volumes have risen in step, leaving refiners facing larger compliance bills than last year despite greater biofuel availability.3
Distillate exports add a separate layer of pressure. Diesel and fuel oil exports have been hitting record highs in recent months, OilPrice.com reported on 2026-08-10, prompting criticism that product is leaving the country while domestic inventories run thin. The administration declined to restrict exports at that stage.5
The industry's political standing in this debate is considerable. By one estimate, the oil and gas sector spent $450 million on campaign contributions, lobbying, and advertising to support Trump and Republicans during the 2024 election cycle, according to OilPrice.com. Yet the RFS dispute divides refiners from corn farmers and biofuel producers, who depend on the mandates for market demand and occupy the other side of the Washington lobbying table.5
The EPA's next decision on blending volumes is the concrete forward signal for this market. If the agency adjusts RIN compliance requirements before year-end, the cost shift would move through refining margins quickly and flow into rack prices at the terminal. Executives in Tuesday's (2026-09-01) meeting sought exactly that outcome. They left without it.6,3