Measurement Differences


	Lower Zakum


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	39.90


	16,252,300


	-40,316


	-0.25

%


	-0.25

%


	0.14

	23

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-

	-

	-

%

%