Why has RBOB gasoline fallen 7.2% to 3.235 this month while crude climbed?
RBOB gasoline is 3.235, down 7.2% over the past 30 days, off a 30-day high of 3.587 and a 30-day low of 2.756. Gasoline is the one big benchmark on my desk that fell while the thing it is made from went the other way. So the question for anyone buying wholesale gallons this month: what pulled gasoline down, and does it hold.
Crude
The first number I checked was crude, because gasoline usually tracks it. Brent is 109.86, up 3.8%, its 30-day high and the first time at $110 since May per Transport Topics. World Oil ties that move to Houthi strikes on Saudi Arabia and Russia-Ukraine energy attacks, with Brent up 3.7% on the session. The obvious read would be that pricier crude lifts the products. Crude rose, and gasoline fell about 35 cents from its high to 3.235. So the simple explanation did not hold at the first number.
Refinery utilization
Refinery utilization came next, because less gasoline made usually means a firmer price. Utilization is down 4.1% over the month. Lower runs should tighten the gasoline pool and support the street price. It did not. Gasoline fell anyway, with runs easing at the same time. So the drop is not coming from refineries flooding the market with extra barrels. Something on the demand or blend side is doing the work.
The news wire
The wire pointed the same way the crude number did. The Ryazan refinery in Russia halted one main unit after a drone attack, per Reuters, and Marco Rubio is set to visit Ambani's refinery in Gujarat as U.S. diesel prices surge, per the Indian Panorama. Both are crude and middle-distillate stories. A Russian unit offline and Gulf supply fears lift the price of oil and firm up diesel. Neither one is a reason gasoline should fall. The news that moved the tape this month moved the wrong product for my question.
Diesel
Diesel told me gasoline's weakness was its own. ULSD is 4.899, down 6.6% over 30 days, so the futures eased too. The retail-wholesale diesel spread is 1.456, up 0.133 over the month, so the street diesel price held firmer than the rack, and the wire has U.S. diesel prices surging. Diesel futures came off, but by less than gasoline, and retail diesel kept its margin. Gasoline fell harder and did not get that retail cushion in these numbers.
The crack spread
The crack spread gave me the mechanical answer for why both products lagged crude. The 3:2:1 crack is 57.77, down 10.83 over 30 days. Crude up almost four percent and products down six and seven means the refiner margin compressed hard this month. A refiner buying Brent at 109.86 and selling into a 3.235 gasoline market is earning a good deal less per barrel than a month ago. The margin absorbed the gap between rising crude and falling gasoline. For the refiner it was a weaker month on the gasoline side, after a stretch of strong cracks, and the business carried that cost rather than pass it through to the pump.
What the numbers can't show
What the crack does not tell me is why gasoline specifically gave up the margin while diesel held. The honest answer is that the piece I most want is not on my desk. I have no gasoline demand series and no blend data in front of me. The timing fits a seasonal story, with driving season behind us and the cheaper winter blend coming into the system in mid-October, and that would explain gasoline falling while diesel firms into heating season. I can say that fits. I cannot prove it from these six benchmarks, so I will not pretend the numbers show it.
Natural gas
Natural gas rounds out the picture and confirms this is a product-by-product month, not a broad selloff. Henry Hub is 3.116, up 7.8%, with storage at 3567, up 8.2% and at its 30-day high. Gas and its storage rose together while gasoline fell. Nothing here is moving as one block. Each fuel is trading its own supply and its own season.
So here is what I am sure of. Gasoline fell 7.2% to 3.235 even as Brent rose to 109.86, and the refiner margin took the gap, with the 3:2:1 crack down 10.83 to 57.77. The fall is not refiners overproducing, because utilization is down 4.1%. It is not crude, which rose. Diesel held up better, down only 6.6% with its retail spread wider at 1.456. What I am not sure of is the last link, the gasoline demand and blend numbers that would turn a strong inference into a fact, and I do not have them today.
For an operator buying this week, the wholesale gasoline number is the opportunity. Gallons are cheaper at the rack, 3.235 against a 3.587 high, while retail prices usually lag the rack by a couple of weeks. That lag could widen your gasoline margin on the street for a short window, and it may close as fast as it opened if crude keeps climbing and the crack has to rebuild. Diesel is the firmer book into winter, and the wider retail diesel spread says the market already knows it. I would treat the cheap gasoline as a timing question on the forecourt and watch the crack at 57.77, because that level signals whether refiners keep running gasoline.
And that was just the data. See you tomorrow.