NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

Sustainable Growth Advisers, LP's Holding History (CIK: 0001290668)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 1,990,280 Value ($000) $158,287 Avg Close — Range —
Q3 2013
Shares 2,666,130 Value ($000) $208,251 Avg Close — Range —
Q2 2013
Shares 2,618,264 Value ($000) $180,398 Avg Close — Range —