Measurement Differences


	Rang Dong


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	40.50


	8,588,742


	-22,637


	-0.26

%


	-0.23

%


	0.39

	26

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.48

	0.44

	24

%

%