As of this posting, crude oil futures are trading at $121.65, up 1.68 just since the open.

But that’s just the tip of the iceberg this morning when it comes to bad news about oil prices.

Those who have been watching the rise of oil the last few years may recall when Goldman Sachs issued a research note in the spring of 2005. To say the note was controversial at the time would be an understatement. In that note, analysts at the investment firm wrote about a “super spike” in oil prices that could occur pushing oil prices between $50/barrel and $105/barrel until 2009.

This morning Goldman Sachs analysts issued an updated note saying that crude prices are now poised to potentially rise between $150 and $200/barrel. “The possibility of $150 to $200 per barrel seems increasingly likely over the next six to 24 months, though predicting the ultimate peak in oil prices as well as the remaining duration of the up-cycle remains a major uncertainty,” the note said.

Why?

No surprises in their reasoning.

Demand growth is outpacing output growth. China has more than doubled oil use since New York crude dropped to $16.70 a barrel in November 2001. That has basically taken up most of the world’s spare capacity, while at the same time supply has been cut in Nigeria, Iraq, and Venezuela.

Spare production capacity of the Organization of Petroleum Exporting Countries (OPEC)  is low, and the group’s exports could easily fall because of “lackluster” supply growth and rising domestic consumption in member countries, the Goldman analysts added.

Underscoring this, Indonesia yesterday said it might quit OPEC as it consumes more oil than it produces, and lowered its oil sales estimate for 2008 to 927,000 barrels a day from 950,000.