Yeah, because that's a non-biased source
It was a 3rd party report, but it is valid. If you want something with the government stamp then read this report from the U.S. Army Corps of engineers.
Army Corps of Engineers Peak Oil Report
This has been swept under the rug for many reasons.
Currently, non-OPEC nations have been at maximum production and will most likely peak as predicted. Figure 2 shows the projected worldwide oil production (based on analyses from the Association for the Study of Peak Oil and Gas [ASPO]). Note that these are considered pessimistic projections. Others predict far higher production for the future, but discoveries to date have not born out the predictions of the optimists.
Rogo