US ethanol output and margins rose last week as May corn-for-ethanol use ran above a year ago

US ethanol plants had a good week. Production climbed week over week, and Brownfield reports the gain came from margins, not only volume. That matters more than the raw output number, because grind economics are what keep plants running near capacity instead of throttling back.

The demand side backs it up. Corn used for ethanol in May came in above the same month last year, and the soybean crush ran higher too. More corn getting turned into fuel means plants are buying steadily and keeping their capacity running.

For a jobber this is the boring-good kind of news. Steady ethanol supply keeps blend economics predictable heading into peak summer driving, and it takes some risk out of the RIN math while D6 generation stays healthy.

E15 and the holiday

E15 is the timely one. With July 4 travel about to load up the interstates, the cheaper blend gives drivers a lower pump price where stations carry it. Norfolk radio flagged the holiday savings, and the summer waiver is what lets E15 stay on the street through the hot months.

Retailers who carry it get a traffic story. E15 priced under E10 pulls cars onto the lot, and the inside sale is where the margin is. Stations without a blender pump or a line to 88 miss that pull.

Soybean crush

The May crush ran above last year. A bigger crush means more soybean oil, and soybean oil is what renewable diesel plants on the Gulf and West Coast keep bidding for. When crush volume holds up, RD producers have supply to work with, and that filters back into the diesel pool through the blending credits.

Eni and Mercuria

Eni and Mercuria signed a deal to combine their trading books out of Geneva, with biofuels in the mix alongside oil and LNG. None of this changes much for a US operator right now. It signals that biofuels trading is getting the same institutional muscle the majors put behind crude, which could tighten spreads over time if the new desk gets active in US markets.

What to watch

Whether ethanol margins hold once the summer driving bump fades is the open question. RIN prices give the D6 read. Soybean oil shows the RD feedstock pull, and any move on the E15 summer waiver would change the math for stations carrying 88. The Eni-Mercuria desk is a slower story, worth a check once it actually starts trading.