Five Year Drilling Results

  2010 2009 2008 2007 2006     2010 2009 2008 2007 2006
North America                    International          
Total oil wells 65 5 138 128 194   Total oil wells 57 59 73 73 65
Total gas wells 243 154 286 288 496   Total gas wells 11 12 37 11 18
Drilling success (%) 100 98 100 98 98   Drilling success (%) 85 86 89 79 83