Forbes.com:
Aug 2005 - Making a Buck on Auto DealersJuly 2005 - Too Cheap to Last - PetroKazakhstan
Marketscope:
Mar 2006 - U.S. Global InvestorsNov 2005 - Time to Re-Energize - Edge Petroleum and Chaparral Resources
Sep 2005 - PetroKazakhstan Profits - Kerr-McGee and Chaparral Resources
Aug 2005 - Making a Buck with Auto Dealers
Jul 2005 - Too Cheap to Last - PetroKazakhstan