The Oil Story Everyone's Telling You Is Wrong. Here's What's Actually Driving Prices at the Pump.

Crude oil has dropped to $90/barrel, yet gasoline and diesel prices remain elevated, and refiners are collecting the difference. Marathon Petroleum (MPC) reported refining margins of $36.33/barrel, more than double the $17.58 posted a year earlier. Valero Energy (VLO) saw Q2 refining operating income jump to $4.5 billion from $1.3 billion.

The disconnect points to refining capacity, not crude supply, as the binding constraint. U.S. refining capacity has declined, and global refined-product supply has been squeezed by three named disruptions: attacks on Russian refineries, issues in the Persian Gulf, and Chinese export suspensions.

Interpretation: when crude falls but pump prices don't, the spread between the two widens, and that spread flows to refiners. MPC's margin expansion of roughly $18.75/barrel year-over-year and VLO's more than threefold increase in quarterly refining income show how much value is concentrated at the refining step rather than at the wellhead. Consumers feeling stuck at the pump are paying for scarce processing capacity, not scarce oil.

This framing separates refiners from producers. A crude price decline that would normally pressure the energy complex has coincided with record-scale profit capture at MPC and VLO.