TETRA TECHNOLOGIES INC DEL

Ticker: TTI CUSIP: 88162F105 Class: Common Stock

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

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

Q1 2010
Shares 3,000 Value ($000) $37 Avg Close — Range —
Q4 2009
Shares 3,000 Value ($000) $33 Avg Close — Range —
Q3 2009
Shares 3,000 Value ($000) $29 Avg Close — Range —
Q2 2009
Shares 3,000 Value ($000) $24 Avg Close — Range —
Q1 2009
Shares 3,000 Value ($000) $10 Avg Close — Range —