Yes, we will have a world peak in the next five to ten years....but the important thing to remember is that it took a very significant time to get here and the unwinding will be more akin to a freight train arriving at 2 mph along a twenty mile stretch of visible track as opposed to a spigot suddenly gurgling dry.
It seems more than questionable that 500 million folks will not be able to pull themselves from the tracks in time.
On the bright side, this is about as close to a megatrend as it gets. I work for a petro company as an Engineer and have 5 stripper oil wells on the back of my farm. They are 40 years old and still pay their way quite well ...though they are depleting. However, in the 60's they didn't have quality seismo, multidirectional horizontal drilling, etc. So I expect to see these old wells viewed as new plays as the peak passes and new drilling activity will perk up as the rewards increase. (What reservoirs lie another 100m or 1000m down? ... I doubt it is zero.)
He is correct that supply will be trending down, demand will be trending up....so in the meanwhile (20-30 years) proven (producing) reserves will become increasingly more valuable as well as the stocks that represent them.
Google up some presentations that Scotia Capital has made about a number of Canadian Income Oil Trusts. Did you know our neighbors to the north rank just behind Saudi Arabia in reserves considering the now profitably producing oil sands? Also, tremendous amounts of capital is flowing into Exploration as well as production technology. So it really will be a slow unwind.
Even though Hydrogen is just a 'carrier' of energy and not a 'source', there will be lots of alternative energy sources to come along (through market forces) to fill the bill.
(Example: German wind turbine power production just recently surpassed the total amount of hydro gigawatt hours produced in their country...and the really efficient wind turbines have just recently (last 2 years) come into their own.) This will be a good investment opportunity...if the Teddy Kennedys of the world don't shut them down first because someone that doesn't understand the way the world really works ... is 'offended'. Ignorance and envy are still the greatest threat to mankind.
Like Sir John Templeton said "Trust the market and free enterprise." It will certainly produce more terawatt-years than the rabble of ivory tower intellectuals seeking self-important govt grants for more 'research'. I've seen roustabouts that have more practical knowledge about the real world of oil than these graduate web page builders.
Chicken Little is just a tad premature.