Refiners are running at a seven-year high. Distillate stocks put on seven million barrels in three weeks. Your surcharge went up seventy-three cents anyway — because this was never a fuel supply story.

A customer is going to ask you about this. Probably next week, probably in the tone people use when they think they are being had. Their surcharge line moved three times in a month and they want to know when it stops.

Most of the answers they will find are wrong, and they are wrong in a specific and useful way. Here is what the data actually says, and every number below came off EIA’s own tables this morning.

The retail number first, because that is the one your surcharge is indexed to. EIA’s weekly on-highway diesel average, released Tuesday for the week ending July 27, is $5.313 a gallon. Three weeks earlier, the week ending July 6, it was $4.578. That is the bottom of a thirteen-week slide, and it is 73.5 cents below where we are now.

U.S. average on-highway diesel, weeks ending July 6, 13, 20 and 27 — EIA’s own weekly series

Up 16.1% in three weeks. And still 8.6% below the record of $5.810 set the week of June 20, 2022 — if anyone tells you this is an all-time high, they have not looked.

Now the part that makes this edition worth your seven minutes. When diesel runs like that, the standard explanation is a supply squeeze: refiners can’t keep up, tanks are draining, brace yourself. So I went and checked both halves of that claim in the Weekly Petroleum Status Report.

Neither half is true right now.

97.2 percent. You have to go back to the week ending December 28, 2018 to find American refiners running that hard, and 17.3 million barrels a day of crude runs is the most since September 2019. Whatever is happening, it is not that refineries can’t make the stuff.

So the tanks must be draining. They are not. I pulled EIA’s distillate stocks series and ran the same three weeks the price ran.

Stocks BUILT while the price ROSE. That is the whole finding. An inventory-driven spike looks like the exact opposite of this — falling stocks, rising price. Whatever moved diesel in July, a distillate shortage did not do it.

Here is what did. EIA publishes the Brent spot price daily, and July was violent: $81.23 on July 16, $105.32 on July 23 — a thirty percent move in five trading days. Retail diesel lags crude by roughly one to three weeks, which lines up almost exactly with the July 13, 20 and 27 prints.

This is a crude pass-through, riding on top of a distillate market that is genuinely tight in level terms — stocks are about nine percent below the five-year average and demand is up 4.7 percent year over year, which is why diesel sits a full $1.22 above gasoline. That tightness sets the floor and the spread. It is not what moved the last three weeks.

And the reason that distinction is worth money to you: Brent closed at $91.82 on July 27, down more than thirteen dollars from its July 23 peak. The crude spike has already partly unwound. The retail number has not caught up to it yet, because it never does — it is a lagging average of what stations actually charged.

Kept honest. The lag estimate and the forecast are mine, not EIA’s. EIA publishes prices and volumes; it does not publish a crude-to-retail pass-through lag, and it makes no forecast of next week’s pump price. “One to three weeks” and “one more up-week then flattening” are my read of the series, and I could be wrong — if Brent turns back up, so does everything above. I am deliberately not telling you why crude moved. Coverage has tied the March break and the July spike to the Iran war; EIA publishes no causal attribution and I am not going to launder a news narrative through a data source that never said it. The dates are real: Brent broke from $71.32 on February 27 to $95.74 on March 6, and ran $81.23 to $105.32 between July 16 and 23. Why is somebody else’s story. The +7.0 million barrel build is my arithmetic on EIA’s weekly distillate stocks series (103,619 to 110,632 thousand barrels, July 3 to July 24), not a figure EIA published as a three-week change. Its own weekly line is “Distillate fuel inventories increased by 1.1 million barrels last week and are about 9% below the five-year average for this time of year.” The claim that fuel surcharges index to this specific EIA series is industry practice, not an EIA statement — check your own contracts, because some index to a regional PADD average rather than the national one, and the regional spreads are wider than the move I am describing. Refinery utilization and crude runs are national and weekly; your terminal is neither.

Sources (primary, verified today): EIA Gasoline and Diesel Fuel Update (release date stated on the page as 7/28/2026, next release 8/4/2026) and the underlying weekly series EMD_EPD2D_PTE_NUS_DPG, U.S. No 2 Diesel Retail Prices, read directly from EIA’s history file: $4.578 (wk ending 7/6), $4.796 (7/13), $5.134 (7/20), $5.313 (7/27); series record $5.810 (6/20/2022). Refinery and production figures quoted verbatim from the Weekly Petroleum Status Report summary, week ending July 24, 2026. Distillate stock levels from EIA’s weekly distillate stocks history file (WDISTUS1) — 103,619 thousand barrels at July 3 rising to 110,632 at July 24. Utilization and crude-run comparisons against WPULEUS3 and WCRRIUS2 history files. Brent spot from EIA Europe Brent Spot Price FOB (RBRTE): $81.23 (7/16), $105.32 (7/23), $100.31 (7/24), $91.82 (7/27, EIA’s latest published day). Every figure in this edition came off an EIA file or PDF fetched this morning. No trade coverage supplied a fact here — and one widely repeated figure, a Brent price of $87.92, appears nowhere in EIA’s spot series for July and is not used.

A customer is going to ask you when the fuel surcharge stops moving. Here's the answer, and it's not the one going around.

EIA's weekly on-highway diesel average, week ending July 27: $5.313/gal.

Three weeks earlier, week ending July 6: $4.578.

Up 73.5 cents. Up 16.1%. Four prints: 4.578 → 4.796 → 5.134 → 5.313.

The standard explanation for a run like that is a supply squeeze. Refiners can't keep up, tanks are draining, brace yourself.

I checked both halves in EIA's Weekly Petroleum Status Report. Neither one is true right now.

On refining, verbatim, week ending July 24:

"U.S. crude oil refinery inputs averaged 17.3 million barrels per day... Refineries operated at 97.2% of their operable capacity last week... Distillate fuel production increased, averaging 5.4 million barrels per day."

97.2%. You have to go back to the week ending December 28, 2018 to find American refiners running that hard. Crude runs of 17.3 million b/d are the most since September 2019. Refineries are not the problem.

So the tanks must be draining. They aren't.

I pulled EIA's weekly distillate stocks series and ran the same three weeks the price ran:

July 3: 103.6 million barrels
July 24: 110.6 million barrels

Stocks BUILT seven million barrels while the price rose 73 cents.

That's the finding. An inventory-driven spike looks like the exact opposite — falling stocks, rising price. Whatever moved diesel this month, a distillate shortage did not do it.

What did: Brent spot went $81.23 on July 16 to $105.32 on July 23. Thirty percent in five trading days. Retail diesel lags crude by roughly one to three weeks, which maps almost exactly onto the July 13, 20 and 27 prints.

So this is crude pass-through sitting on top of a distillate market that IS genuinely tight in level terms — about 9% below the five-year average, demand up 4.7% year over year, diesel carrying a $1.22 premium to gasoline. That tightness sets the floor and the spread. It is not what moved the last three weeks.

And here's why the distinction is worth money:

Brent closed at $91.82 on July 27. Down more than thirteen dollars from the July 23 peak. The spike has already partly unwound. The retail number hasn't caught up, because it never does — it's a lagging average of what stations actually charged.

EIA's next diesel print is Tuesday, August 4. That's the number your surcharge reprices on, and it's the first one carrying the pullback instead of the spike.

My read — a read, not a fact: one more up-week of pass-through, then flattening if Brent holds near ninety.

Three things I'd do:

1. Answer the surcharge question with the mechanism, not the number. Your customer thinks it's a judgment call you make. It's an index lookup against a federal weekly average. Show them the four prints, then show them the tanks got fuller the whole time. That converts an argument about your integrity into a conversation about a market neither of you controls.

2. Separate the floor from the spike when you talk about next year. Two stories, two lifespans. A customer who hears only "fuel is up" budgets for the wrong one.

3. Check the record claim before repeating it. $5.313 is NOT a record. The high is $5.810, week ending June 20, 2022 — we're 8.6% below it, and below April's $5.643 peak this year. "Diesel is soaring" is true over three weeks and false over three months.

Keeping it honest: the lag estimate and the forecast are mine, not EIA's — it publishes prices and volumes, not pass-through lags or pump forecasts. The 7.0 million barrel build is my arithmetic on EIA's series, not a published three-week figure; EIA's own line is "Distillate fuel inventories increased by 1.1 million barrels last week and are about 9% below the five-year average." And I'm deliberately not telling you why crude moved — coverage ties it to the Iran war, EIA publishes no causal attribution, and I'm not laundering a news narrative through a data source that never said it.

One more: a Brent price of $87.92 has been circulating this week. It appears nowhere in EIA's spot series for July. EIA's latest published day is $91.82.

Sources: EIA Gasoline and Diesel Fuel Update; Weekly Petroleum Status Report, week ending July 24, 2026; EIA history files EMD_EPD2D_PTE_NUS_DPG, WDISTUS1, WPULEUS3, WCRRIUS2; Europe Brent Spot Price FOB (RBRTE).

FIRST SOURCE · one verified original-source finding, composed for one reader · this edition: trucking — written for the carriers, brokers and fleets who have to explain a surcharge line to a customer who thinks it is a judgment call