Stocks tumbled today after oil prices topped $133 a barrel. The market also took fright at the Fed’s lowering of its 2008 economic forecast.

CNN reports that the Dow Jones industrials fell over 187 points, or 1.5% with around 90 minutes left in the session. The broader Standard & Poor’s 500 index fell 1.2%, while the tech-heavy Nasdaq composite lost 1.5%.

There may be far worse news on the horizon, too.

With oil reaching $130 today, Goldman Sachs forecasting $141 oil, and T. Boone Pickens calling $150, it’s time to examine the one “X” factor that could quickly spike oil to $200.