..or you could listen to the people here, I personally would opt to believe myself over all these people in the wrong.
AFTER the pasta is done, you could add a knob of butter to make sure they don't stick at that point, and it gives a nice taste. But trust me, the oil in the water is only necessary if you don't have a big pot, or don't know how to cook it (ie. put pasta in the water before it boils etc).