Daily Deep Dive

One real question about fuel prices, margins, and markets, investigated from the data and the day's reporting. A new one each day. Back to briefs

• Sep 08, 2026

  Why has the U.S. diesel price climbed 4.7% over the past month?

  The U.S. diesel price is 5.599 a gallon, up 4.7% over the past thirty days, with a high of 5.652 and a low of 3.459 across that window. For anyone buying fuel by the truckload, the question is what pushed it there and whether the…

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• Sep 07, 2026

  Why did the 3:2:1 crack spread only widen to 62.09 while crude jumped 17%?

  The 3:2:1 crack spread is 62.09, up 2.05 over the past thirty days. Over that same month WTI crude rose 17.0%. A crack spread is what a refiner earns turning three barrels of crude into two of gasoline and one of diesel, so when…

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• Sep 06, 2026

  Why did the diesel retail-wholesale spread narrow to 1.104 this month?

  The diesel retail-wholesale spread is 1.104 now, down 0.367 over the past thirty days. The spread is the gap between what a station charges at the pump and what the fuel cost coming off the rack, and it moved a third of a point…

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• Sep 05, 2026

  Why has Brent crude climbed 21.2% in a month, and what does that do to fuel operators?

  Brent crude is 96.28, up 21.2% over the past thirty days. A move that size on the world's main crude benchmark changes the cost of everything downstream of it, so the question a fuel operator is already asking is what pushed it…

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• Sep 04, 2026

  Why has WTI Crude Oil Price climbed 20.7% over the past month?

  WTI is now 90.82, up 20.7% over the past 30 days, off a 30-day low of 68.25. A move that size in a month is worth stopping on, because it decides what a fuel operator pays for product before anything else in the business happens.…

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• Sep 03, 2026

  Why did Henry Hub natural gas climb 11.7% to $2.996/MMBtu this past month?

  Henry Hub natural gas is $2.996/MMBtu, up 11.7% over the past thirty days. Operators who buy gas for process heat or run gas-fired equipment want to know whether that is the front edge of a bigger move or the tail of one. So I…

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• Sep 02, 2026

  Why has U.S. petroleum inventory climbed 6.0% over the past month?

  U.S. petroleum inventory is up 6.0% over the past 30 days, now 428.91 million barrels. A build usually comes with softer prices, because more oil in tanks means more supply chasing the same demand. That is not what happened this…

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• Sep 01, 2026

  Why has ULSD diesel climbed 10.5% in a month?

  ULSD futures are 4.483, up 10.5% over the past thirty days. That is a real cost jump for anyone who buys diesel by the rack and sells it by the gallon, so the question is worth an hour: what moved it, and how much of the move is…

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• Aug 31, 2026

  Why has U.S. diesel climbed to $5.652, up 6.4% over the past month?

  Diesel is 5.652 today, up 6.4% over the past 30 days, and that same number is the 30-day high. A price at the top of its own month is the kind of thing an operator feels before payroll does, so the question is plain: what pushed…

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• Aug 30, 2026

  Why has RBOB gasoline fallen to 3.05, down 10.2% in a month?

  RBOB gasoline is $3.05 a gallon today, down 10.2% over the past thirty days. A month ago the same benchmark touched 3.761. The obvious read is that crude got cheaper and pulled every product down with it, and if that held, the…

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• Aug 29, 2026

  Why has U.S. natural gas storage climbed 3.2% to 3,184 this month?

  Natural gas storage is 3,184, up 3.2% over the past 30 days. A working operator sees a number like that and wants to know one thing before it shows up in a price: is more gas piling up because demand fell off, or because we are…

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• Aug 28, 2026

  Why has U.S. natural gas storage climbed 7.0% over the past month?

  U.S. natural gas storage reads 109.483 now, up 7.0% over the past 30 days, and it is at its 30-day high. A build that size usually points one way for the price. The price went the other way.

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• Aug 27, 2026

  Why did the 3:2:1 crack spread narrow to 57.8 this month?

  The 3:2:1 crack spread is 57.8, down 14.42 over the past 30 days. The number is the theoretical margin on turning three barrels of crude into two of gasoline and one of diesel, and a working refiner watches it the way a trucker…

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• Aug 26, 2026

  Why has the diesel retail-wholesale spread widened to 1.384 this month?

  The diesel retail-wholesale spread is 1.384 now, up 0.183 over the past 30 days. The spread is the retailer's gross margin on a gallon, the gap between what the street charges and what the marketer pays at the rack. It widened…

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• Aug 25, 2026

  Why did Brent fall 4.3% to 87.97 this month while diesel climbed 6.2%?

  Brent crude is 87.97, down 4.3% over the past month. That is a strange direction for a month when the wire is full of Middle East supply scares and burning refineries. India's import bill rose sharply because the Iran war choked…

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• Aug 24, 2026

  Why has WTI crude fallen 4.6% over the past month?

  WTI crude is 85.19, down 4.6% over the past thirty days. A drop that size changes what an operator pays for the next load, so the question is what pushed it down and whether the same force is still working.

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• Aug 23, 2026

  Why have U.S. petroleum inventories climbed 4.2% in a month, and what does it mean for fuel operators?

  The inventory reading is 428.815, up 4.2% over the past 30 days. A working operator sees a build like that and wants to know what filled the tanks, because the answer decides whether cheaper product is coming or whether one…

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• Aug 22, 2026

  Why has Henry Hub natural gas fallen 5.2% to 2.773 this month?

  Henry Hub natural gas is 2.773, down 5.2% over the past thirty days, off a high of 3.343. A fuel operator watching that number wants two things from it: why it fell, and whether it changes anything they pay for. I went at both.

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• Aug 21, 2026

  Why has ULSD diesel climbed 5.5% this past month?

  ULSD diesel futures are $4.376/gal, up 5.5% over the past 30 days, off a low of $3.093/gal and near a high of $4.48/gal. A fuel operator is already carrying that question into September, because a rising diesel number shows up in…

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• Aug 20, 2026

  Why has U.S. diesel climbed 6.2% to $5.454/gal while gasoline fell?

  A gallon of diesel now costs $5.454, up 6.2% over the past month. A month is not a long window, and most of the time diesel and gasoline drift together because they come off the same barrel. This time they did not. So the…

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• Aug 19, 2026

  Why has RBOB gasoline fallen 10.7% in a month while diesel climbed?

  RBOB gasoline is $3.026, down 10.7% over the past thirty days, off a high of $3.772. Nearly every headline on my wire this month says refined products are getting more expensive. So why is gasoline moving the other way?

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• Aug 16, 2026

  Why did the 3:2:1 crack spread narrow to 57.23 this month?

  The 3:2:1 crack spread is 57.23 now, down 10.87 over the past 30 days. The crack is a rough read on refining margin: the value of the gasoline and diesel a barrel yields, set against the cost of the crude that went in. When it…

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• Aug 15, 2026

  Why has U.S. natural gas storage climbed 12.3% in the past month?

  U.S. natural gas storage is now 104.974, up 12.3% over the past 30 days, off a low of 71.675. A move that size in one month is worth understanding before deciding whether it changes anything you do.

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• Jul 27, 2026

  Why has WTI crude climbed 20.1% over the past month?

  WTI closed the month at 83.16, up 20.1% over the past thirty days. A move that size raises fuel costs within a week, so a jobber has a fair question: what pushed it, and is the push over.

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• Jul 26, 2026

  Why has Brent crude climbed 31.2% in a month, and what does it mean for fuel operators?

  Brent crude is 96.78, up 31.2 percent over the past 30 days. Crude is the base cost under every gallon an operator buys, so a one-month move that size is worth understanding before it works its way to the rack. The question is…

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• Jul 25, 2026

  Why has the diesel retail-wholesale spread narrowed to 1.015 over the past month?

  The diesel retail-wholesale spread is 1.015 now, down 0.724 over the past 30 days. A spread that moves that far in a month has one big number behind it somewhere. The question for this issue is which one.

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• Jul 24, 2026

  Why did ULSD jump 30.4% in 30 days while the retail diesel spread fell $0.724 a gallon?

  ULSD futures are $4.143/gal, up 30.4% over the past 30 days. Over that same stretch the diesel retail-wholesale spread went the other way, down $0.724 to $1.015/gal. What follows is where that move came from and what the spread…

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• Jul 14, 2026

  Why has the 3:2:1 crack spread widened to 58.72 when crude is climbing?

  The 3:2:1 crack spread is 58.72, up 11.22 over the past 30 days. Refining margins normally get thinner when crude gets more expensive, and crude has been getting more expensive: OilPrice reports Brent and WTI both advancing on…

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• Jul 13, 2026

  Crude just jumped 4% on the last print. Is the 57.26 crack spread about to close?

  The 3:2:1 crack spread is $57.26, up $9.08 over the past month. Crude fell over that same stretch. The question is whether refining margins improved because products held their value or because crude fell out from under them, and…

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• Jul 11, 2026

  Refinery strikes abroad are propping up product prices. Is that a margin you can plan on?

  The 3:2:1 crack spread is 61.9, up 14.28 over the past 30 days. That number is the rough margin a refiner earns turning three barrels of crude into two of gasoline and one of diesel, and it moved a long way in a month. The…

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• Jul 10, 2026

  Refining margins hit record highs while crude collapsed. What is holding fuel prices up?

  The 3:2:1 crack spread is 57.56, up 9.94 over the past thirty days. Crude fell hard over that same month. A spread that widens while its main input collapses is worth pulling apart, because the answer decides who has been earning…

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• Jul 09, 2026

  The crack spread says 57.96. How much of that does a refiner actually bank?

  The 3:2:1 crack spread is 57.96, up 11.98 over the past thirty days. A move that size normally means refiners are getting paid more for gasoline and diesel than they were a month ago. Neither product is up.

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• Jul 07, 2026

  Saudi Arabia cut its crude price to Asia by $11 a barrel. Who is collecting on it?

  The 3:2:1 crack spread is 54.81, up 9.73 over the past 30 days. It measures the gap between what a refiner pays for a barrel of crude and what it gets back selling two parts gasoline and one part diesel, so a wider crack means a…

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• Jul 05, 2026

  Why did street diesel prices fall faster than the retailer's own cost?

  The 3:2:1 crack spread is 54.48, up 8.94 over the past 30 days. That number is a refiner's rough margin: the value of two barrels of gasoline and one of diesel against the three barrels of crude it takes to make them. When it…

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• Jul 04, 2026

  OPEC put 3.3 million barrels a day back on the water. Where did the margin go?

  The 3:2:1 crack spread is 54.48, up 8.94 over the past 30 days. That number is the rough gross margin a refiner earns turning three barrels of crude into two of gasoline and one of diesel. The question worth an operator's time is…

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• Jul 03, 2026

  Crude lost a quarter of its value in a month. Who kept the money?

  The 3:2:1 crack spread is $54.45 a barrel, up $8.91 over the past 30 days. That spread is the theoretical margin a refiner earns turning three barrels of crude into two of gasoline and one of diesel, and it just moved the…

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• Jun 29, 2026

  Every fuel price fell last month, so why did refining margins improve?

  The 3:2:1 crack spread is 54.76, up 5.05 over the past 30 days. The spread is the refiner's rough gross margin: three barrels of crude in, two barrels of gasoline and one of diesel out, priced at the difference. A move that size…

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