HUNTSMAN CORP

Ticker: HUN CUSIP: 447011107 Class: COM

TETRAD CORP's Holding History (CIK: 0000883597)

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

Q1 2012
Shares 18,100 Value ($000) $254 Avg Close — Range —
Q4 2011
Shares 17,000 Value ($000) $170 Avg Close — Range —