Measurement Differences


	Urals (Black Sea)


	2006


	API

	Total Barrels

	Barrels Loss

	Barrels Loss

	Mean NSV Loss

	Standard Deviation

	Number of Records


	31


	122,635,788


	-318,613


	-0.26

%


	-0.27

%


	0.22

	179

%


	2005


	Mean NSV Loss

	Standard Deviation

	Number of Records


	-0.29

	0.23

	219

%

%