Fig 2. Saudi Arabia population trend (src: UN)
Fig 3. Number of barrels consumed per capita per year.
Edit: 02/20/2006 10:44 am: corrections of a few mistakes about the color coding employed for the different variants (sorry about that!).
 PRB Country Profiles: Saudi Arabia
 Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, World Population Prospects: The 2004 Revision and World Urbanization Prospects: The 2003 Revision
peak+oil oil+production oil Saudi+Arabia