Measurement Differences


	Napo


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	19.10


	10,730,353


	10,949


	0.10

%


	0.10

%


	0.19

	31

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	0.15

	0.46

	44

%

%