President Biden is said to be pondering an "inflation offensive" that includes an FTC investigation of anti-competitive behavior in the oil and gas industry. This got me curious, so I took a super-simple look at the average markup for gasoline.
Here's what I did. I retrieved the cost of a gallon of gasoline (regular all formulations) and the price of a barrel of oil (West Texas Intermediate). I divided oil by 42 to get the cost of a gallon of oil, calculated the difference, and then subtracted taxes. The remainder was the refining/shipping/etc. markup for converting a gallon of oil at a refinery to a gallon of gasoline in consumers' hands. Here it is:
Hmmm. The markup has gone up by 20-30 cents since the beginning of the year, which is a little suspicious. On the other hand, this is obviously a pretty volatile series, and the markup today isn't out of kilter with the past few years.
Still, there are two obvious things to look at. First, why has the markup trended upward from 50 cents during the 1992-2010 period to about 80 cents today? Second, why the further spike in 2021?
There's nothing much Biden can do about the price of oil, but investigating the big refiners seems justified. Maybe there's nothing here, but it sure looks as though we should at least be asking why the markup on a gallon of gasoline is so much higher right now than it was a decade ago.














