Diesel prices are set to climb sharply through the end of 2026, according to the federal government’s latest energy forecast. The U.S. Energy Information Administration now projects that retail diesel will average $5.55 a gallon in the fourth quarter of the year, a jump the agency ties to fuel stockpiles rather than a single price shock. The forecast matters well beyond diesel-powered pickups and farm trucks, since diesel is the fuel that moves most groceries, mail and retail goods from warehouse to store shelf.
Diesel Forecast Climbs as Distillate Stocks Hit a 23-Year Low
Diesel is not a discretionary household purchase the way a fill-up for the family sedan can be. It powers long-haul trucks, freight rail, farm combines and construction equipment, so a tightening in distillate supply tends to show up first at truck stops and fuel depots, then move through freight contracts before reaching the shelf price of goods that traveled by truck.
The Energy Information Administration, the U.S. Department of Energy’s independent statistics arm, published its September Short-Term Energy Outlook on September 9, forecasting that retail diesel will average $5.55 a gallon in the fourth quarter of 2026 before easing to $4.40 a gallon in 2027. The agency ties the increase to a supply squeeze: it expects U.S. distillate fuel oil inventories, the category that includes diesel, to drop below 100 million barrels in October for the first time since 2003, and to stay below the five-year seasonal low through the first quarter of 2027.
Free retirement updates: Enrollment and claim windows come and go, and missing one can cost you real money. The free Retirement Shield newsletter keeps you ahead of the deadlines that matter. Sign up free.
Gasoline Prices Are Forecast to Rise More Modestly
Gasoline is not following the same trajectory. The outlook puts the national retail gasoline average at $3.84 a gallon for 2026, up from EIA’s own $3.10 average for 2025, before falling back to $3.35 a gallon in 2027. EIA’s weekly gasoline and diesel price survey, also updated September 9, tracks the regional detail behind that national figure, since prices along the Gulf Coast and West Coast tend to move differently than in the Midwest.
The gap between the two fuels comes down to what each is made from and how it is used. Refiners can shift some of a barrel of crude toward gasoline or toward distillate depending on demand, but distillate demand, from trucking to exports, has been outrunning supply this year in a way gasoline demand has not.
Middle East Supply Constraints Are Still Propping Up Crude Prices
Part of the reason diesel and gasoline forecasts diverge from crude oil is that crude itself remains elevated. The full September Outlook shows Brent crude averaging $91 a barrel in August, up $7 from July, with global inventories estimated to have fallen by roughly 400 million barrels so far this year. EIA attributes part of that decline to continued constraints on tanker traffic through the Strait of Hormuz, which it expects to keep about 5.7 million barrels a day of Middle East crude production shut in during the fourth quarter of 2026.
Most of that shut-in production is expected to return to near pre-disruption levels by the second quarter of 2027. That timeline is why the agency forecasts Brent easing to $74 a barrel in 2027 even as distillate markets, and diesel prices with them, stay tight a little longer.
Winter Heating Costs Are a Separate, Still-Unpublished Forecast
Diesel and home heating oil are close relatives, and roughly 4% of U.S. households, concentrated in the Northeast, heat with fuel oil bought from a local dealer rather than at a pump. EIA typically pairs its October Short-Term Energy Outlook with a Winter Fuels Outlook that estimates what an average household will spend heating a home by fuel type, built around assumptions about weather. That report had not been published as of the September release, so any specific winter heating-bill figure attributed to EIA this month is getting ahead of the agency’s own data.
Freight Costs Are the Quiet Link to Grocery and Retail Prices
Diesel is a meaningful share of what it costs a carrier to move a truckload of freight, and trucking touches most retail goods at some point in the supply chain. A sustained move to a national average near $5.55 a gallon does not appear as its own line on a grocery receipt, but higher diesel has historically fed fuel surcharges that carriers pass to shippers, and shippers eventually build into wholesale prices, over months rather than overnight. EIA’s forecast covers fuel prices themselves; it does not attempt to model how far, or how fast, that cost moves through to a specific retail shelf.
The distillate story is also a reminder that energy forecasts are estimates built on current assumptions, not locked-in prices. EIA revises the Short-Term Energy Outlook every month, and the next edition, due in October alongside the Winter Fuels Outlook, will show whether the Strait of Hormuz constraints and the drawdown in distillate stocks are still on the same track.
The Energy Programs That Wait on an Application
A distillate squeeze reaches a household through heating fuel and through the freight cost buried in retail prices, and neither arrives with a claim form attached. The programs built to offset those costs do exist, and they are opt-in: LIHEAP energy assistance, weatherization work on the home itself, and SNAP at 60 and older all pay only the households that apply. No agency sends word when a household crosses into eligibility, so the help sits unused.
The Benefits Checklist is a 63-page guide covering 11 programs, the 2026 income limits that govern each one, and a 50-state directory of the office that runs it.
Open The Benefits Checklist for the energy programs and the state offices behind them.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
