LUFKIN INDS INC

CUSIP: 549764108 Class: COM

GLENMEDE TRUST CO NA's Holding History (CIK: 0000314949)

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

Q4 2007
Shares 3,483 Value ($000) $202 Avg Close — Range —
Q2 2007
Shares 5,380 Value ($000) $347 Avg Close — Range —
Q4 2006
Shares 3,483 Value ($000) $202 Avg Close — Range —