The most worrying aspect of this book, is that the author himself (on page 104) says we will not reach peak until 2010, using a 2.2% depletion rate. IEA claims the current (2009) depletion rate is 5.1-6.7%, with whistleblower estimates all the way up to 9.1%. These rates mean new production will not offset the decline. Additionally, oil production has been on a plateau since 2005, which seems to confirm the suspicions of peak oil believers.
He furthermore adds that Mexico hasn't peaked (though Cantarell is in virtual freefall), consistently overestimates oil fields (trivially accepts the words of Saudi and Kuwaiti officials, despite all the controversy), that OPEC will hit 38mbpd by 2010 (actual 2009 figure is 28mbpd, so a little hard to believe), takes the Brazilian deepwater 25-40bn speculated figure as fact (despite Petrobras insisting this isn't proven), claims that Iraqi oil production could increase by 500k with minimal investment (7 years on, and we haven't seen this in production figures, despite significant investment)... and so on. Frankly, the amount of controversial statements in this book is too substantial to list.
All of this is mixed with hardline interpretation of the Hubbert curve, as well as cheap shots at the opposition, which frankly works only to undermine his own argument.
I did however enjoy the part on unconventional oil - although, in line with the rest of the book, the Bakken formation is trivially upgraded from the generally accepted 3.6bn recoverable to 8-90bn barrels.
Finally, the author claims Iraq wasn't invaded for oil. If you honestly believe this statement, then I guess this book is for you.