ENERGY TRANSFER PRTNRS L P

CUSIP: 29273R109 Class: UNIT LTD PARTN

TETRAD CORP's Holding History (CIK: 0000883597)

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

Q2 2008
Shares 17,000 Value ($000) $739 Avg Close — Range —
Q1 2008
Shares 17,000 Value ($000) $776 Avg Close — Range —
Q4 2007
Shares 17,000 Value ($000) $916 Avg Close — Range —
Q3 2007
Shares 17,000 Value ($000) $830 Avg Close — Range —
Q2 2007
Shares 17,000 Value ($000) $1,049 Avg Close — Range —