No this isn't about speculators, it's about speculating -- predicting, projecting, prognosticating and even guessing.
Back in May I did some mathematical trend analysis, projecting the oil price out to 2012. It's published
here. I extrapolated two different trends visible in oil prices between 2002 and today, extending the trends out to 2012. The low case indicated $250/bbl in 2012, the high case indicated $900/bbl
One of the factors in any price projection, of course, is the effects of demand destruction as the price creeps ever upward. Several analysts have put forward the idea that the price of oil would exhibit a "stair-step" pattern. The price would rise until oil was no longer affordable to those at the bottom of the economic ladder, then it would level out or even pull back as those buyers dropped out and the rest of the market accommodated to the new prices. The actual price rise over time would depend on the duration of the pauses in the stair-step price escalation pattern as well as the steepness of the rises between them.
When you look at the data, such a pattern is indeed visible:
Since 2002, there are pauses visible in 2003, late 2004, mid 2006, and late 2007. We appear to be in similar price pause right now. The pauses appear to be lasting between four months and a year, with the price subsequently going up by about 50% before the next pause occurs. As a result, oil prices have been rising at a fairly steady 33% per year since 2002.
If that pattern holds, oil prices could rise 500% in the next seven years, for a price of $600+/bbl in 2015. A lot depends on the length of the pause at each of the price steps, and how steep the subsequent rise is. If a global depression takes hold in the next year or so, I'd expect to see a long pause in the price escalation, until the drop in supply exceeds the demand drop and the next rise starts in spite of the poor global economy.
I think a global depression is now probable, due to the accelerating problems in the global financial (credit/debt) system. The depression will likely start in 2009, just after we come out of the current oil price pause. Oil prices will have risen back to $150 or a bit more by the time the depression begins. The global economic slowdown will cause general demand destruction with an accompanying price pullback from $150/bbl to about $100, where prices will languish for two to three years (while everyone celebrates that Peak Oil was another Y2K boogeyman). Then prices will start to rise again due to the pressure of supply depletion and the inelasticity of demand among those who still have the money. The price will then rip to $500 by 2015 and possibly to $1000 or more by 2020.