High oil prices are a function of supply and demand. Supply of oil is constrained by geology, NOT by oil companies. In a system of competitive capitalism, it's in the interest of any individual oil company to pump as much as possible. For the oil companies to be blame-worthy, there would have to be some kind of worldwide conspiracy between scores of state-owned and publicly traded oil companies to keep supply low, which is a virtual impossibility because there's too much of a temptation to cheat once the price gets this high. (OPEC is the closest thing you have to cooperation designed to manipulate prices, and just within that group alone you had rampant cheating on quotas. And that was before they agreed to open the taps full throttle.) The oil companies around the world are pumping as much as they can.

So that leaves the demand side. People who use the most oil or gasoline are the ones who are likely to be the most upset by high prices, and the ones who, if they want someone to blame, most ought to look in the mirror.