Comparison of Estimated Undiscovered
  USGS - 2000   CJC      
      Difference   Probable CJC equivalence
Oil Gb P95 P50 P5 Mean P95-CJC        
1-FSU 36 107 226 116 -24% 44 FSU +Casp  
2-ME/N.Africa 73 216 432 230 23% 56 ME +MEO+Egypt+Lib+Alg+Tun
3-Asia/Pacific 9 27 59 30 24% 7 East +China  
4-Europe 6 20 45 22 40% 4 NW Eur + Alb. Hung. Rom
5-N.Am (ex US) 7 71 157 70 -1% 7 Can + Mex  
6-C&S.Am 20 93 231 105 -49% 30 L-am +DW Bras  
7-SubAfric/Antarc 27 69 124 72 -4% 28 Africa  less N Africa + DW
8-S.Asia 1 3 7 4 9% 1 India & Thailand  
9. USA 61   95 76 62% 23 US-48+Alaska +DW  
Unforeseen 0         10      
Sum 239 606 1376 724 13% 209      
Non-US 179 606 1282 649 -4% 186      
      Note: It is not an exact comparison because the
  USGS -1993 definitions of what is being measured may not be
1 FSU 59   242 131 the same.    
2 USA 29   62 44    
3 WORLD 292   1005 470