They have always been greedy, but that greed has increased. The oil companies have been producing less than pre-pandemic levels up till mid summer, which means they where selling less product, but at the same time making higher profits.. Example (simple made up numbers): if they where selling 1000 barrels before the pandemic, and made a 10% profit... and then they where selling 800 barrels or less, during the pandemic and up till this mid summer, but where making 40% profit, there is only one way they can increase their profits to 40% on less product output/sold, and it sure as hell isn't the actual market forces, and those profit markups are still at play today.Right, but all of that is easily explained by actual market forces, not the oil companies suddenly getting greedy. They were always greedy!
However, keep in mind that Ms. Porter was talking about all large corporations in her graph, not just oil companies..