Measurement Differences


	CPC Blend


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	43.80


	149,418,637


	-403,820


	-0.27

%


	-0.27

%


	0.17

	181

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.28

	0.19

	221

%

%