I decided against posting this originally as it’s on the edge of speculation but since other comments here are pure speculation…
Our gigantic tank farm operator has been complaining that there isn’t enough of the correct type of crude to make RUG. AKA Crude crude everywhere but nothing we are capable of refining. This is pretty much a shortage in the mid west and south central regions.
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I follow individuals that track the REAL ethanol content in RUG and e15 fuels and in this area e10 was running 3-5% ethanol last November and so called e15 was quite nearly e10, in a normal year real world ethanol content bottoms out right about now but instead e10 and e15 is AT THE UPPER LEGAL LIMIT. Which is highly unusual in the winter in this area, e85 is even higher than normal for winter months. (E70 in the winter is extremely unusual, normally e50)
The idea that farmers are driving ethanol content to trend up makes a nice sound bite
but regional crude supply issues coupled with difficulty exporting corn are making it so blenders are pushing the ethanol blends higher more out of necessity and a cost avoider because we aren’t getting the correct feedstocks in this region to make low E RUG.
This set of complaints isn’t new (on and off since late 2023)
but it is getting worse and we are on the edge of seeing the central US gas get expensive, (and possibly paradoxically diesel might get cheaper)
far as I can tell the West isn’t being affected by this issue, but issues do tend to spread if they get worse.
And yes gas has been getting more expensive locally every week since mid January, the spread between e10 and e15 has grown and e0 is extraordinarily expensive now.