Sustainability 2011 , 3 2065
Figure 12. Correlation between drilling fuel consumption and drilling investment. Both
exploratory and production drilling are included. R^2 = 0.83.Figure 13. Correlation between drilling activity and drilling investment. Both exploratory
and production drilling are included. R^2 = 0.66.01020304050020040060080010001991 1996 2001 2006billion 2005NOK
kmDrilling activity Drilling monetary investment01020304050020040060080010001991 1996 2001 2006billion 2005NOK
kmDrilling activity Drilling investment