Believe what you want.
Listen to the Washington Post if you don't believe me.
That link's a trip! Complaining because $54 barrel for a price of oil! See how fast perception has changed things? Of course Pearlstein has nothing too, right?
But you can believe what you want.
All the profits and prices are controlled by the suppliers. Price fixing at OPEC's level or the retailers' pump price IS a monopolistic practice.
That makes the oil companies monopolists, not capitalists.