Form SCHEDULE 13G/A NOV Inc. Filed by: VANGUARD GROUP INC

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National Oilwell Varco Inc. (NYSE: NOV) Delayed: 20.99 -0.61 (2.82%)
Previous Close $21.60    52 Week High $38.89 
Open $21.62    52 Week Low $25.74 
Day High $21.67    P/E 3.86 
Day Low $20.98    EPS $5.44 
Volume 2,616,991