[JeffersonRepublic.com]

"OPEC does have an impact on oil prices, but it does not control the majority of oil produced in the world and Saudi Arabia frequently pumps more oil than their quota..."

They may not control a "majority", but they do control the price. If OPEC cut their collective production, prices would shoot up. OPEC owns the export market, and is able to dictate the price.

[GeorgefromGeorgia]

You have a different definition of the word control than I do. The only way OPEC controls prices is by setting the production of oil, thereby keeping supply down (and prices up). The demand for oil has gone up because the US, Chinese and Indian economies are growing. Also, no new refineries have been built in the US for many years. My daughter works for an oil company and trades oil on the commodities market. I suggest you do more research on the subject.