In his view (and in ours, too), way too many people hear about the huge reported reserves of Saudi Arabia and other Middle Eastern countries, and assume that this oil is really available for extraction. Matt makes the point that these reserves, and many others around the world, have not been audited. In fact, they seem to be political numbers, so we cannot depend on them. He also points out that we also do not have detail data with respect to historical oil extraction from individual fields in the Middle East, so we really do not know how close to decline Saudi Arabia and other Middle Eastern countries really are.
In 2005, Matt Simmons wrote a book called Twilight in the Desert. In it, he summarized what he learned about Saudi Arabian oil production by reading 200 academic papers. He concluded from his analysis that the oil extraction techniques being used there were techniques that one might use if the fields were quite depleted. Because of this, he doubted that we should believe stories that Saudi oil production can be greatly expanded. Instead, he raised the possibility that in the not too distant future, Saudi oil production will suddenly decline. Matt’s research underlying the book was no doubt behind his concern that oil reserves and oil production rates are not audited.
Another thing Matt is known for is his educational graphics about “what is really going on” with respect to oil extraction. For example, in his talk at the 2009 ASPO–USA conference, he shows this graphic of the amount of conventional oil discovered by decade.