NATIONAL OILWELL VARCO INC

CUSIP: 637071101 Class: COM

RiverFront Investment Group, LLC's Holding History (CIK: 0001469751)

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

Q2 2009
Shares 49,749 Value ($000) $1,625 Avg Close — Range —
Q1 2009
Shares 37,586 Value ($000) $1,079 Avg Close — Range —