LUFKIN INDS INC

CUSIP: 549764108 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q1 2013
Shares 39,000 Value ($000) $2,589 Avg Close — Range —
Q4 2012
Shares 39,000 Value ($000) $2,267 Avg Close — Range —
Q3 2012
Shares 39,000 Value ($000) $2,099 Avg Close — Range —
Q2 2012
Shares 63,830 Value ($000) $3,467 Avg Close — Range —
Q1 2012
Shares 64,930 Value ($000) $5,237 Avg Close — Range —
Q4 2011
Shares 77,830 Value ($000) $5,239 Avg Close — Range —
Q3 2011
Shares 52,000 Value ($000) $2,767 Avg Close — Range —
Q2 2011
Shares 65,000 Value ($000) $5,593 Avg Close — Range —
Q1 2011
Shares 75,000 Value ($000) $7,010 Avg Close — Range —
Q4 2010
Shares 80,000 Value ($000) $4,991 Avg Close — Range —
Q1 2010
Shares 31,000 Value ($000) $2,454 Avg Close — Range —
Q4 2009
Shares 31,000 Value ($000) $2,269 Avg Close — Range —
Q3 2009
Shares 31,000 Value ($000) $1,649 Avg Close — Range —
Q2 2009
Shares 31,000 Value ($000) $1,304 Avg Close — Range —
Q1 2009
Shares 21,000 Value ($000) $795 Avg Close — Range —