Measurement Differences


	Amna


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	37.79


	51,770,163


	-148,409


	-0.29

%


	-0.28

%


	0.15

	104

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.27

	0.16

	91

%

%