Measurement Differences


	Nemba


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	40.40


	48,950,754


	-86,032


	-0.18

%


	-0.15

%


	0.25

	56

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.25

	0.26

	34

%

%