Oregon Weighs Steeper Cuts to Road Fuel Carbon

State regulators will consider a plan that could push nearly all petroleum diesel out of Oregon's fuel supply by 2032.

Updated on Nov. 12, 2026 in Electric Vehicles

Flat-color editorial illustration of plain cylindrical storage tanks and a tanker cylinder on an industrial lot beneath distant green hills and overcast sky. — Oregon regulators will consider a plan that could push nearly all petroleum diesel out of the state's fuel supply by 2032 under a tightened low-carbon fuel standard. AI Illustration. Upload story photo >

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Oregon regulators will discuss steeper cuts to road fuel carbon intensity that could push out nearly all petroleum diesel by 2032. Department of Environmental Quality staff recommended the more aggressive Option B to meet Governor Tina Kotek's direction to halve road fuel carbon intensity by 2040.

Why it matters

Oregon's low-carbon fuel standard already replaced more than half of its liquid diesel pool with renewable alternatives in the second quarter, and the proposed targets would tighten that shift. The changes could also raise demand for electric replacements of passenger vehicles, affecting drivers across the state.

Oregon's liquid diesel pool is roughly 53,000 barrels per day, and LCFS credits traded above $150 per metric tonne in the second quarter. Oregon credits added an implied 20 cents per U.S. gallon to petroleum diesel during that period.

The players

Tina Kotek

Tina Kotek is the Governor of Oregon, who directed state agencies to halve road fuel carbon intensity by 2040.

Oregon Department of Environmental Quality

The Oregon Department of Environmental Quality is the state agency that staff-recommended the more aggressive Option B for the low-carbon fuel standard.

The details

Suppliers of higher-carbon fuels incur deficits they must offset with credits earned by distributing approved lower-carbon alternatives. Oregon enforces its program alongside California and a newer Washington program, and the proposal targets replacing 95% of conventional diesel with renewable diesel and biodiesel.

2015: Baseline year for measuring road fuel carbon intensity reductions.
Second quarter 2026: Oregon replaced over half of its liquid diesel pool with renewables.
2028: Option B proposes a 6% carbon intensity reduction.
2029-2030: Option B proposes 5% annual carbon intensity reductions.
2032: Nearly all petroleum diesel could be pushed out under the proposal.

Roadmap

Oregon's proposal follows the low-carbon fuel framework it shares with California, which requires annual reductions in fuel carbon intensity. The steeper Option B targets reflect rising U.S. renewable diesel supplies and the state's electrification plans for the second half of the decade.

If adopted, the tighter targets could raise the cost of petroleum diesel and increase the share of renewable fuels drivers encounter at Oregon pumps. The proposal could also make electric passenger vehicles more attractive as a replacement option for Oregon drivers.

The takeaway

Oregon's proposed targets show how state fuel rules can steer the market toward cleaner fuels and vehicles. Drivers should watch the final Option B decision, since it would shape diesel prices and the appeal of electric vehicles in the state.