Originally Posted by
rrich
The simple answer is because they can.
The very complex answer is that what we learned in Economics 101 doesn't really relate to the real world.
As simply as possible:
If the market has the capacity to consume 1000
If the total supply for this market is 1100
And I control 200 of the supply
What I will do is keep 100 in reserve and raise the price on the 100 that I deliver to the market. The market is now completely satisfied in the supply vs. demand in the Economics 101 theory. What will happen is that everyone else that supplies the market will eventually raise their prices to match my prices because they see me selling to the last 10% of the market.
What our governments fail to recognize is that the oil market is a controlled and manipulated market. The lessons of Economics 101 theory that we all learned in college don't necessarily apply in this pseudo free market.