CONOCOPHILLIPS

Ticker: COP CUSIP: 20825C104 Class: COM

TETRAD CORP's Holding History (CIK: 0000883597)

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

Q3 2009
Shares 2,200 Value ($000) $99 Avg Close — Range —
Q2 2009
Shares 2,200 Value ($000) $93 Avg Close — Range —
Q1 2007
Shares 100,000 Value ($000) $6,835 Avg Close — Range —
Q4 2006
Shares 100,000 Value ($000) $7,195 Avg Close — Range —